{ "document_id": "fresh-bethgelab-298328", "source_sha256": "153354fcb49dd95b0e53ee11e566e3844966d1decf81ab6546bed01a16b7dc60", "kind": "ku", "status": "generated", "result": { "schema_version": "1.0", "title": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "abstract_sha256": "", "mode": "sequential", "model": "base", "config": { "mode": "sequential", "chunk_words": 1000, "context_words": 0, "previous_units": 10, "canonicalize": false, "minhash_permutations": 16, "canonicalization_max_tokens": 4096, "parse_retries": 0 }, "knowledge_units": [ { "chunk_index": 0, "context_summary": "The study investigated whether Musician's Dystonia involves distorted finger representations in the primary sensorimotor cortex using fMRI. Results indicated that somatotopic organization remained intact in musicians with dystonia, contradicting the hypothesis of spatial distortion. The findings suggest that task-specific dystonia stems from higher-order disruptions in skill encoding rather than primary sensory map abnormalities.", "entities": [ { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "concept", "aliases": [], "attributes": { "symptom": "Persistent decline in motor skills during the musical performance ", "prevalence_in_professional_musicians": "1-2%", "clinical_feature": "normal finger use for writing/typing but impaired coordination during music" }, "relationships": [ { "predicate": "is_a_form_of", "target": "task-specific dystonia", "attributes": {}, "target_id": null }, { "predicate": "associated_with", "target": "higher order disruption of skill encoding", "attributes": {}, "target_id": null } ] }, { "name": "task-specific dystonia", "entity_id": "task_specific_dystonia", "entity_type": "concept", "aliases": [], "attributes": { "definition": "isolated dystonia presenting with selective motor impairment during specific skill performance" }, "relationships": [ { "predicate": "includes", "target": "Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "primary sensorimotor cortex", "entity_id": "primary_sensorimotor_cortex", "entity_type": "place", "aliases": [], "attributes": { "components": "primary somatosensory cortex (S1) and primary motor cortex (M1)" }, "relationships": [ { "predicate": "contains", "target": "finger representations", "attributes": {}, "target_id": null } ] }, { "name": "finger representations", "entity_id": "finger_representations", "entity_type": "concept", "aliases": [], "attributes": { "status_in_dystonia": "intact", "spatial_geometry": "no difference between fingers", "dissimilarity_architecture": "equivalent in musicians with and without dystonia" }, "relationships": [ { "predicate": "located_in", "target": "primary sensorimotor cortex", "attributes": {}, "target_id": null }, { "predicate": "not_associated_with", "target": "expansion or spatial shift in symptomatic group", "attributes": {}, "target_id": null } ] }, { "name": "functional MRI", "entity_id": "functional_mri", "entity_type": "method", "aliases": [], "attributes": { "application": "Characterization of activity patterns during passive stretching and active finger presses " }, "relationships": [ { "predicate": "used_in", "target": "study of nine musicians with dystonia and nine healthy musicians", "attributes": {}, "target_id": null } ] }, { "name": "purpose-built keyboard device", "entity_id": "purpose_built_keyboard_device", "entity_type": "other", "aliases": [], "attributes": { "function": "allows fMRI characterisation of activity patterns", "mechanism": "pneumatic pistons for passive lifting, piano-like keys for active pressing" }, "relationships": [ { "predicate": "used_for", "target": "passive extension and active finger presses", "attributes": {}, "target_id": null } ] }, { "name": "representational similarity analysis", "entity_id": "representational_similarity_analysis", "entity_type": "method", "aliases": [], "attributes": { "reliability": "highly reliable", "consistency": "more consistent than spatial metrics" }, "relationships": [ { "predicate": "revealed", "target": "equivalent dissimilarity architecture in dystonic and healthy musicians", "attributes": {}, "target_id": null } ] }, { "name": "spatial analysis", "entity_id": "spatial_analysis", "entity_type": "method", "aliases": [], "attributes": { "finding": "digit representations poorly captured by spatial measures", "optimized_metric_finding": "The physical representation is clear, but there are no differences in the spatial geometry between the fingers. " }, "relationships": [ { "predicate": "compared_with", "target": "representational similarity analysis", "attributes": {}, "target_id": null } ] }, { "name": "animal model of task-specific dystonia", "entity_id": "animal_model_of_task_specific_dystonia", "entity_type": "method", "aliases": [], "attributes": { "subject": "two monkeys", "training": "Rapid, repetitive, highly stereotypical grasping movements ", "outcome": "painful forearm syndrome and motor performance deterioration" }, "relationships": [ { "predicate": "revealed", "target": "10-20 fold increase in sensory receptive fields", "attributes": {}, "target_id": null }, { "predicate": "revealed", "target": "breakdown of segregated areas (dorsal/palmar overlap)", "attributes": {}, "target_id": null } ] }, { "name": "Anna Sadnicka", "entity_id": "anna_sadnicka", "entity_type": "person", "aliases": [], "attributes": { "affiliation": "St. George's University of London" }, "relationships": [ { "predicate": "author_of", "target": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "T Wiestler", "entity_id": "t_wiestler", "entity_type": "person", "aliases": [], "attributes": { "affiliation": "University College London" }, "relationships": [ { "predicate": "author_of", "target": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "K Butler", "entity_id": "k_butler", "entity_type": "person", "aliases": [], "attributes": { "affiliation": "University of Plymouth" }, "relationships": [ { "predicate": "author_of", "target": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "E Altenmüller", "entity_id": "e_altenmuller", "entity_type": "person", "aliases": [], "attributes": { "affiliation": "Hannover University of Music" }, "relationships": [ { "predicate": "author_of", "target": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "M J Edwards", "entity_id": "m_j_edwards", "entity_type": "person", "aliases": [], "attributes": { "affiliation": "St. George's University of London" }, "relationships": [ { "predicate": "author_of", "target": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "N Ejaz", "entity_id": "n_ejaz", "entity_type": "person", "aliases": [], "attributes": {}, "relationships": [ { "predicate": "author_of", "target": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "J Diedrichsen", "entity_id": "j_diedrichsen", "entity_type": "person", "aliases": [], "attributes": {}, "relationships": [ { "predicate": "author_of", "target": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "attributes": {}, "target_id": null } ] } ], "source": { "chunk_index": 0, "start_word": 0, "end_word": 995, "word_count": 995, "sha256": "59d858f78d17cc9c96aba0098f52506529d221696ddd1b5768fd6dfcd228ba8b", "sentence_minhash": [ 84989070151237717, 1306423125707224, 114472042057979973, 66655718784952673, 5043051019624353, 62667647458868521, 23718652799488495, 67257714571907172, 149650309763788182, 7649729463600173, 13716948551998784, 36192083373329381, 49568730582519212, 47412694742625906, 21633903934502347, 658790404649858 ] }, "extraction_warnings": [] }, { "chunk_index": 1, "context_summary": "The study compared spatial and pattern-similarity metrics to assess finger representation in musicians with task-specific dystonia versus healthy controls. Results indicated that the dissimilarity architecture in the primary somatosensory cortex (S1) was equivalent between patients and controls, suggesting the condition does not involve distorted primary sensory maps. The analysis utilized fMRI data from passive finger movements to evaluate representational similarity.", "entities": [ { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "other", "aliases": [], "attributes": { "symptom_location": "right-hand whist playing (all patients), bimanual (two patients)", "diagnosis_confirmation": "independent confirmation by two neurologists (MJE and AS)", "model_entity_type": "condition" }, "relationships": [ { "predicate": "hypothesized_mechanism", "target": "increasing overlap and fusion of finger representations", "attributes": {}, "target_id": null }, { "predicate": "alternative_explanation", "target": "alterations in other areas due to preserved S1/M1 organization", "attributes": {}, "target_id": null } ] }, { "name": "Patient Group", "entity_id": "patient_group", "entity_type": "other", "aliases": [], "attributes": { "total_recruited": 11, "analyzed_count": 9, "sex": "10 male (of 11 recruited)", "mean_age_years": 49.9, "age_sd": 7.85, "recruitment_sources": [ "National Hospital for Neurology and Neurosurgery", "London Hand Therapy" ], "inclusion_criteria": [ "postgraduate musical training", "soloist or ensemble player", "musicianship as primary income" ], "model_entity_type": "cohort" }, "relationships": [ { "predicate": "severity_measured_by", "target": "Tubiana and Chamagne scale", "attributes": {}, "target_id": null }, { "predicate": "excluded_from_analysis", "target": "2 patients due to anxiety/claustrophobia", "attributes": {}, "target_id": null } ] }, { "name": "Control Group", "entity_id": "control_group", "entity_type": "other", "aliases": [], "attributes": { "count": 9, "sex": "all male", "mean_age_years": 41.0, "age_sd": 14.54, "health_status": "No prior history of musculoskeletal or functional limitations in the upper extremities. ", "model_entity_type": "cohort" }, "relationships": [ { "predicate": "matched_for_age_with", "target": "Patient Group", "attributes": { "t_statistic": 1.75, "p_value": 0.097, "test_type": "unpaired t-test" }, "target_id": null } ] }, { "name": "Representational Similarity Analysis (RSA)", "entity_id": "representational_similarity_analysis_rsa", "entity_type": "method", "aliases": [], "attributes": { "purpose": "Assess the similarity between the activity patterns for different fingers. " }, "relationships": [ { "predicate": "reliability_in_S1", "target": ">0.8 split-half reliability", "attributes": {}, "target_id": null }, { "predicate": "compared_to", "target": "spatial metrics", "attributes": { "finding": "more consistent than all previously studied spatial metrics " }, "target_id": null } ] }, { "name": "Cross-validated Mahalanobis distance", "entity_id": "cross_validated_mahalanobis_distance", "entity_type": "measurement", "aliases": [], "attributes": {}, "relationships": [ { "predicate": "used_to_compute", "target": "dissimilarity between each finger pair", "attributes": {}, "target_id": null } ] }, { "name": "Primary Somatosensory Cortex (S1)", "entity_id": "primary_somatosensory_cortex_s1", "entity_type": "other", "aliases": [], "attributes": { "model_entity_type": "anatomical_structure" }, "relationships": [ { "predicate": "dissimilarity_architecture", "target": "equivalent for patient and controls", "attributes": {}, "target_id": null } ] }, { "name": "fMRI Experiment", "entity_id": "fmri_experiment", "entity_type": "method", "aliases": [], "attributes": { "scanner": "Siemens 3T TRIO MRI scanner", "coil": "32-channel head coil", "sequence": "2D echo-planar", "inplane_resolution": "2.3mm x 2.3mm", "tr": "2.72s", "slice_thickness": "2.15mm", "slice_gap": "0.15mm", "matrix_size": "96x96", "images_per_run": 126, "discarded_images": 3 }, "relationships": [ { "predicate": "measured_signal", "target": "blood-oxygen-level dependent (BOLD) responses", "attributes": {}, "target_id": null }, { "predicate": "reported_condition", "target": "passive movement", "attributes": { "reason": "no motor behavioural confounds" }, "target_id": null }, { "predicate": "device_used", "target": "fMRI compatible device with five piano-style keys", "attributes": { "passive_extension_mm": 15 }, "target_id": null } ] }, { "name": "Passive Movement Condition", "entity_id": "passive_movement_condition", "entity_type": "other", "aliases": [], "attributes": { "cue_color": "red star", "repetitions": 6, "lift_duration_sec": 1, "total_trial_length_sec": 10.5, "model_entity_type": "experimental_condition" }, "relationships": [ { "predicate": "applied_to", "target": "right hand fingers", "attributes": {}, "target_id": null } ] }, { "name": "Active Press Condition", "entity_id": "active_press_condition", "entity_type": "other", "aliases": [], "attributes": { "cue_color": "green star", "go_cue": "green letter 'p'", "required_force_N": 2.3, "repetitions": 6, "total_trial_length_sec": 10.68, "model_entity_type": "experimental_condition" }, "relationships": [ { "predicate": "applied_to", "target": "left and right hands", "attributes": {}, "target_id": null }, { "predicate": "analysis_result", "target": "no difference between groups", "attributes": {}, "target_id": null } ] } ], "source": { "chunk_index": 1, "start_word": 995, "end_word": 1990, "word_count": 995, "sha256": "c44b6c9d1dacdc07cbbd32272027c049a45a928cfaefad727b8bb21c69bc8288", "sentence_minhash": [ 103524869278618013, 1306423125707224, 110182565901905120, 61919449716151556, 34249088398280546, 6742049205051262, 7726835522131242, 67257714571907172, 74462327042166113, 35062189116939919, 120833680685463289, 62546183844771624, 8649321992247620, 906306679132868, 73860429008392155, 117472307714712089 ] }, "extraction_warnings": [ "normalized unsupported entity type 'condition' for \"Musician's Dystonia\"", "normalized unsupported entity type 'cohort' for 'Patient Group'", "normalized unsupported entity type 'cohort' for 'Control Group'", "normalized unsupported entity type 'anatomical_structure' for 'Primary Somatosensory Cortex (S1)'", "normalized unsupported entity type 'experimental_condition' for 'Passive Movement Condition'", "normalized unsupported entity type 'experimental_condition' for 'Active Press Condition'" ] }, { "chunk_index": 2, "context_summary": "The study details the preprocessing and analysis pipeline for fMRI data, including surface reconstruction and the definition of motor and somatosensory regions of interest. It describes spatial metrics, such as center of gravity and softmax-weighted coordinates, used to quantify finger representation layouts. Additionally, it outlines the use of representational similarity analysis with cross-validated Mahalanobis distance to assess pattern dissimilarity.", "entities": [ { "name": "T1-weighted anatomical scan", "entity_id": "t1_weighted_anatomical_scan", "entity_type": "measurement", "aliases": [], "attributes": { "sequence": "3D gradient echo", "resolution": "1 mm isotropic", "field_of_view": "240 × 256 × 176mm" }, "relationships": [ { "predicate": "used_for", "target": "co-registration of functional data", "attributes": {}, "target_id": null }, { "predicate": "used_for", "target": "surface reconstruction", "attributes": {}, "target_id": null } ] }, { "name": "SPM tools", "entity_id": "spm_tools", "entity_type": "method", "aliases": [], "attributes": {}, "relationships": [ { "predicate": "used_for", "target": "minimal preprocessing of functional imaging data", "attributes": {}, "target_id": null } ] }, { "name": "Generalised Linear Model", "entity_id": "generalised_linear_model", "entity_type": "method", "aliases": [], "attributes": { "regressors": "separate regressor for each trial condition/finger/run", "hemodynamic_model": "boxcar function (duration=8.7s) convolved with standard hemodynamic response function" }, "relationships": [ { "predicate": "produces", "target": "parameter estimates", "attributes": {}, "target_id": null }, { "predicate": "produces", "target": "beta-weights", "attributes": {}, "target_id": null } ] }, { "name": "Freesurfer", "entity_id": "freesurfer", "entity_type": "method", "aliases": [], "attributes": {}, "relationships": [ { "predicate": "used_for", "target": "reconstruction of pial and white-grey matter surfaces", "attributes": {}, "target_id": null } ] }, { "name": "fsaverage template", "entity_id": "fsaverage_template", "entity_type": "concept", "aliases": [], "attributes": { "registration_criteria": "sulcal-depth map and local curvature" }, "relationships": [ { "predicate": "used_for", "target": "cross-participant surface registration", "attributes": {}, "target_id": null } ] }, { "name": "Primary Motor Cortex (M1) ROI", "entity_id": "primary_motor_cortex_m1_roi", "entity_type": "place", "aliases": [], "attributes": { "definition": "Surface nodes with highest probability for Brodmann area 4, 1.5cm above and below the hand-knob" }, "relationships": [ { "predicate": "excludes", "target": "voxels with >25% volume on opposite side of central sulcus", "attributes": {}, "target_id": null } ] }, { "name": "Primary Somatosensory Cortex (S1) ROI", "entity_id": "primary_somatosensory_cortex_s1_roi", "entity_type": "place", "aliases": [], "attributes": { "definition": "Nodes in hand-region of Brodmann areas 3a and 3b, 1.5cm above and below the hand knob" }, "relationships": [ { "predicate": "excludes", "target": "Brodmann areas 1 and 2", "attributes": { "reason": "finger representations tend to be more overlapping and less clearly organised" }, "target_id": null }, { "predicate": "excludes", "target": "voxels with >25% volume on opposite side of central sulcus", "attributes": {}, "target_id": null } ] }, { "name": "Spatial Analysis Methods", "entity_id": "spatial_analysis_methods", "entity_type": "method", "aliases": [], "attributes": { "metrics": [ "location of maximal activity", "linearly-weighted center of gravity (COG)", "softmax-weighted COG" ], "softmax_parameters_k": [ 0.05, 0.1, 0.2, 0.4, 0.8, 1.6, 3.2 ] }, "relationships": [ { "predicate": "applied_to", "target": "t-values for passive finger movements on the right hand", "attributes": {}, "target_id": null }, { "predicate": "evaluated_by", "target": "MANOVA for somatotopic ordering", "attributes": {}, "target_id": null }, { "predicate": "evaluated_by", "target": "Euclidean distance between 10 possible pairs of digits", "attributes": {}, "target_id": null } ] }, { "name": "Representational Similarity Analysis (RSA)", "entity_id": "representational_similarity_analysis_rsa", "entity_type": "method", "aliases": [], "attributes": { "input": "beta-weights from generalised linear model", "dissimilarity_metric": "cross-validated Mahalanobis distance", "covariance_estimation": "voxel-by-voxel covariance matrix from first-level residuals, regularised by shrinking off-diagonal elements towards zero" }, "relationships": [ { "predicate": "assesses", "target": "similarity between activity patterns in ROIs", "attributes": {}, "target_id": null } ] } ], "source": { "chunk_index": 2, "start_word": 1990, "end_word": 2971, "word_count": 981, "sha256": "0c93b7f42ecdc9b21d47b57b6a45a82822d7effe674dbb00955f39fe5bcee06c", "sentence_minhash": [ 78394354238995921, 18551641988871988, 41776060060441492, 34103808509324220, 50154285776315358, 120624748091028973, 46992937528651961, 96292850158067112, 64333332902950267, 9462436175016187, 19416574622547768, 49775578613387123, 21933493368060407, 47412694742625906, 28143888679166800, 2988186798456605 ] }, "extraction_warnings": [] }, { "chunk_index": 3, "context_summary": "The study employed surface-based searchlight analysis and multivariate pattern analysis to assess finger representation in the primary sensorimotor cortex. Spatial metrics like center of gravity showed low reliability, whereas cross-validated Mahalanobis distances in representational similarity analysis demonstrated high reliability. No significant group differences were found between musicians with dystonia and healthy controls in either spatial layout or pattern dissimilarity.", "entities": [ { "name": "cross-validated Mahalanobis distance", "entity_id": "cross_validated_mahalanobis_distance", "entity_type": "method", "aliases": [], "attributes": { "estimation": "unbiased", "property": "expected value is zero if patterns are not different" }, "relationships": [ { "predicate": "computed_from", "target": "patterns estimated from data of that run or all other runs", "attributes": {}, "target_id": null }, { "predicate": "used_for", "target": "quantifying finger representations", "attributes": {}, "target_id": null } ] }, { "name": "surface-based searchlight analysis", "entity_id": "surface_based_searchlight_analysis", "entity_type": "method", "aliases": [], "attributes": { "purpose": "detect overall differences in location or spatial extent of digit representation", "searchlight_definition": "circle on surface containing 60 voxels between pial and white-matter surface" }, "relationships": [ { "predicate": "computes", "target": "average cross-validated Mahalanobis distance across all 10 pairs of fingers", "attributes": {}, "target_id": null }, { "predicate": "maps_to", "target": "node in the centre of the searchlight", "attributes": {}, "target_id": null }, { "predicate": "statistical_test", "target": "t-test for independent samples", "attributes": {}, "target_id": null }, { "predicate": "threshold", "target": "uncorrected t15= 3.2860, p<0.005", "attributes": {}, "target_id": null }, { "predicate": "correction", "target": "Gaussian Field map correction for cluster size", "attributes": {}, "target_id": null } ] }, { "name": "spatial metrics", "entity_id": "spatial_metrics", "entity_type": "method", "aliases": [], "attributes": { "methods_included": "location of maximal activation, centre of gravity, softmax approach" }, "relationships": [ { "predicate": "reliability", "target": "split-half correlations around 0.4 for S1 and 0.3 for M1 for COG and max activation", "attributes": {}, "target_id": null }, { "predicate": "optimal_parameter", "target": "softmax k=0.8", "attributes": {}, "target_id": null } ] }, { "name": "representational similarity analysis", "entity_id": "representational_similarity_analysis", "entity_type": "method", "aliases": [], "attributes": { "reliability": "split-half reliabilities above 0.8" }, "relationships": [ { "predicate": "compared_to", "target": "spatial measures", "attributes": {}, "target_id": null }, { "predicate": "visualized_using", "target": "vector plots and multidimensional scaling", "attributes": {}, "target_id": null } ] }, { "name": "finger representations", "entity_id": "finger_representations", "entity_type": "concept", "aliases": [], "attributes": { "distribution": "substantial overlap between different fingers in pre- and post-central gyrus", "variability": "Significant differences in the activity patterns of individual fingers vary from person to person. " }, "relationships": [ { "predicate": "measured_in", "target": "S1 and M1", "attributes": {}, "target_id": null }, { "predicate": "stimulation_conditions", "target": "passive stimulation and active finger presses", "attributes": {}, "target_id": null } ] }, { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "other", "aliases": [], "attributes": { "model_entity_type": "condition" }, "relationships": [ { "predicate": "compared_with", "target": "healthy musicians", "attributes": {}, "target_id": null }, { "predicate": "finding", "target": "no significant difference in average dissimilarity or spatial arrangement", "attributes": {}, "target_id": null } ] }, { "name": "primary sensorimotor cortex", "entity_id": "primary_sensorimotor_cortex", "entity_type": "other", "aliases": [], "attributes": { "regions_analyzed": "S1 and M1", "model_entity_type": "anatomical_region" }, "relationships": [ { "predicate": "contains", "target": "hand area of M1 and S1", "attributes": {}, "target_id": null }, { "predicate": "finding", "target": "no alteration of basic finger representations between groups", "attributes": {}, "target_id": null } ] } ], "source": { "chunk_index": 3, "start_word": 2971, "end_word": 3971, "word_count": 1000, "sha256": "2d19f1c5401d112992d9adb9d0a9990ecaaf48e2e0154a8710ce1bf25924e04b", "sentence_minhash": [ 10893342914538609, 1306423125707224, 115461717461310760, 64513941377847126, 5648917133444430, 99436724310786061, 23718652799488495, 125414594280765941, 14843078887968375, 76931577636070685, 19416574622547768, 49775578613387123, 8649321992247620, 81814836679824133, 162504846606578453, 29303900541918447 ] }, "extraction_warnings": [ "normalized unsupported entity type 'condition' for \"Musician's Dystonia\"", "normalized unsupported entity type 'anatomical_region' for 'primary sensorimotor cortex'" ] }, { "chunk_index": 4, "context_summary": "The study concludes that finger representations in the primary sensorimotor cortex remain intact in musicians with dystonia, challenging the hypothesis of somatotopic distortion. The authors propose that task-specific dystonia arises from disruptions in higher-order hierarchical skill networks, such as premotor and parietal areas, rather than primary sensory maps. This perspective suggests that rehabilitation strategies should target these higher-order networks rather than generic digit maps.", "entities": [ { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "other", "aliases": [], "attributes": { "nature": "task-specific", "proposed_mechanism": "disruption in hierarchical skill network", "model_entity_type": "condition" }, "relationships": [ { "predicate": "contradicts_hypothesis_of", "target": "abnormal finger representations in primary sensorimotor cortex", "attributes": {}, "target_id": null }, { "predicate": "associated_with", "target": "changes across a broad network", "attributes": {}, "target_id": null }, { "predicate": "involves_greater_involvement_of", "target": "premotor and parietal cortex", "attributes": {}, "target_id": null } ] }, { "name": "primary sensorimotor cortex", "entity_id": "primary_sensorimotor_cortex", "entity_type": "other", "aliases": [], "attributes": { "components": "primary somatosensory cortex (S1), primary motor cortex (M1)", "status_in_dystonia": "intact finger representations", "model_entity_type": "anatomical_region" }, "relationships": [ { "predicate": "represents", "target": "individual movements", "attributes": {}, "target_id": null }, { "predicate": "does_not_exhibit", "target": "alteration or distortion of finger representations", "attributes": {}, "target_id": null } ] }, { "name": "hierarchical skill network", "entity_id": "hierarchical_skill_network", "entity_type": "concept", "aliases": [], "attributes": { "function": "encodes task-specific features such as finger sequence order" }, "relationships": [ { "predicate": "proposed_location_of", "target": "task-specific dystonia", "attributes": {}, "target_id": null }, { "predicate": "includes", "target": "premotor and parietal areas", "attributes": {}, "target_id": null } ] }, { "name": "premotor and parietal cortex", "entity_id": "premotor_and_parietal_cortex", "entity_type": "other", "aliases": [], "attributes": { "function": "encodes movement sequences and chunks", "model_entity_type": "anatomical_region" }, "relationships": [ { "predicate": "represents", "target": "chunks and longer sequences", "attributes": {}, "target_id": null }, { "predicate": "shows_stabilisation_of", "target": "sequence specific-activation patterns during learning", "attributes": {}, "target_id": null } ] }, { "name": "representational similarity analysis", "entity_id": "representational_similarity_analysis", "entity_type": "method", "aliases": [], "attributes": { "reliability": "high within and between individuals" }, "relationships": [ { "predicate": "revealed", "target": "no changes in representational architecture", "attributes": {}, "target_id": null } ] }, { "name": "spatial centre-of-gravity metrics", "entity_id": "spatial_centre_of_gravity_metrics", "entity_type": "method", "aliases": [], "attributes": { "reliability": "low within and across healthy musicians" }, "relationships": [ { "predicate": "failed_to_reveal", "target": "invariant organisation of finger maps", "attributes": {}, "target_id": null } ] }, { "name": "primate model of task-specific dystonia", "entity_id": "primate_model_of_task_specific_dystonia", "entity_type": "other", "aliases": [], "attributes": { "task": "repetitive whole hand grasping movements", "model_entity_type": "experimental_model" }, "relationships": [ { "predicate": "limitation", "target": "movements controlled differently from fractionated finger movements", "attributes": {}, "target_id": null } ] }, { "name": "passive finger lift condition", "entity_id": "passive_finger_lift_condition", "entity_type": "other", "aliases": [], "attributes": { "focus": "Proprioceptive information related to finger movements ", "model_entity_type": "experimental_condition" }, "relationships": [ { "predicate": "elicited_similar_activity_to", "target": "active finger press condition", "attributes": {}, "target_id": null } ] }, { "name": "active finger press condition", "entity_id": "active_finger_press_condition", "entity_type": "other", "aliases": [], "attributes": { "focus": "muscle activation patterns during near isometric finger presses", "model_entity_type": "experimental_condition" }, "relationships": [ { "predicate": "elicited_similar_activity_to", "target": "passive finger lift condition", "attributes": {}, "target_id": null } ] } ], "source": { "chunk_index": 4, "start_word": 3971, "end_word": 4957, "word_count": 986, "sha256": "2c1488c0ce4057762c3dd037d0a3b1bcef9e63a548bab2592ce1eb21eefe2928", "sentence_minhash": [ 57808424966880475, 1306423125707224, 114472042057979973, 53442166147602330, 5648917133444430, 43416815952622393, 53559835114525303, 85939067702942344, 90642800655838184, 17444917348060025, 28738078860773612, 11317338413054220, 8649321992247620, 47412694742625906, 40708664600011167, 69242845566341429 ] }, "extraction_warnings": [ "normalized unsupported entity type 'condition' for \"Musician's Dystonia\"", "normalized unsupported entity type 'anatomical_region' for 'primary sensorimotor cortex'", "normalized unsupported entity type 'anatomical_region' for 'premotor and parietal cortex'", "normalized unsupported entity type 'experimental_model' for 'primate model of task-specific dystonia'", "normalized unsupported entity type 'experimental_condition' for 'passive finger lift condition'", "normalized unsupported entity type 'experimental_condition' for 'active finger press condition'" ] }, { "chunk_index": 5, "context_summary": "Early retraining methods based on the distorted somatotopy hypothesis, such as sensory super-training, are not widely used or reliably effective. The study's findings suggest that neural representations for passive finger lifts and active presses are intact, supporting task-specific sensorimotor interventions. The authors acknowledge limitations regarding null results and sample size but argue that previous methods showing alterations were unreliable.", "entities": [ { "name": "distorted somatotopy hypothesis", "entity_id": "distorted_somatotopy_hypothesis", "entity_type": "concept", "aliases": [], "attributes": { "status": "challenged by study findings" }, "relationships": [ { "predicate": "guided", "target": "early retraining methods", "attributes": {}, "target_id": null } ] }, { "name": "early retraining methods", "entity_id": "early_retraining_methods", "entity_type": "method", "aliases": [], "attributes": { "clinical_usage": "not widely used", "effectiveness": "not reliably effective" }, "relationships": [ { "predicate": "based_on", "target": "distorted somatotopy hypothesis", "attributes": {}, "target_id": null }, { "predicate": "includes", "target": "sensory super-training", "attributes": {}, "target_id": null } ] }, { "name": "sensory super-training", "entity_id": "sensory_super_training", "entity_type": "method", "aliases": [], "attributes": { "example": "learning braille" }, "relationships": [ { "predicate": "aimed_to", "target": "improve sensory discrimination of the affected hand", "attributes": {}, "target_id": null }, { "predicate": "intended_outcome", "target": "remapping and normalisation of dystonic digit maps", "attributes": {}, "target_id": null } ] }, { "name": "task-specific sensorimotor interventions", "entity_id": "task_specific_sensorimotor_interventions", "entity_type": "method", "aliases": [], "attributes": { "examples": "sensorimotor retraining", "examples_2": "differential learning" }, "relationships": [ { "predicate": "encouraged_by", "target": "study findings", "attributes": {}, "target_id": null } ] }, { "name": "study limitations", "entity_id": "study_limitations", "entity_type": "concept", "aliases": [], "attributes": { "primary_concern": "conclusions rest on a null-result", "potential_causes": "insufficient sample size", "potential_causes_2": "The limited ability of fMRI technology to detect actual changes in the brain. " }, "relationships": [ { "predicate": "complicates", "target": "Bayesian analysis or equivalence testing", "attributes": {}, "target_id": null } ] }, { "name": "previous methodologies for showing alterations", "entity_id": "previous_methodologies_for_showing_alterations", "entity_type": "method", "aliases": [], "attributes": { "reliability": "generally rather unreliable" }, "relationships": [ { "predicate": "contrasted_with", "target": "robust technique for assessing neuronal population activity patterns", "attributes": {}, "target_id": null } ] }, { "name": "robust technique for assessing neuronal population activity patterns", "entity_id": "robust_technique_for_assessing_neuronal_population_activity_patterns", "entity_type": "method", "aliases": [], "attributes": { "evidence_provided": "The basic structure of the fundamental finger representations is standard. " }, "relationships": [] }, { "name": "dystonia manifestation requirement", "entity_id": "dystonia_manifestation_requirement", "entity_type": "concept", "aliases": [], "attributes": { "hypothesis": "dystonia needs to be clinically manifest for abnormal skill network activation" }, "relationships": [ { "predicate": "noted_in", "target": "studies reporting altered somatic finger representations", "attributes": {}, "target_id": null } ] }, { "name": "studies reporting altered somatic finger representations", "entity_id": "studies_reporting_altered_somatic_finger_representations", "entity_type": "event", "aliases": [], "attributes": { "task_usage": "None of the tasks resulted in dystonia. " }, "relationships": [] }, { "name": "preprint status", "entity_id": "preprint_status", "entity_type": "other", "aliases": [], "attributes": { "peer_review": "not certified", "clinical_guidance": "should not be used" }, "relationships": [] } ], "source": { "chunk_index": 5, "start_word": 4957, "end_word": 5364, "word_count": 407, "sha256": "68dd150a182acae4618da73a227489aed5bf346c942f621db8d340c5f378eacc", "sentence_minhash": [ 138742571471211904, 1306423125707224, 140583634530242717, 66655718784952673, 43714454960919411, 224593560600374663, 99359698575653691, 43263063838171275, 73319139196083834, 43671598575492101, 78280491562202942, 11317338413054220, 8649321992247620, 388493164647943575, 39604032099602259, 4555549854558376 ] }, "extraction_warnings": [] } ], "canonical_entities": [] }, "chunks_expected": 6, "chunks_generated": 6, "failed_chunks": [], "repair": { "accepted_windows": 12, "rolled_back": false, "original_context_sha256": "bd8b0967c2d5e1b862090854b11226a005e180be44d73a1f70f077701bb44246", "final_context_sha256": "efc5e7f9e9612f3cbf4eb237dda41902756db643e7b465d2363d0e90b2bfb996", "critical_values": { "passed": true, "checks": { "numbers": true, "quantities": true, "formulas": true, "mathematical_variables": true, "operators": true }, "before": { "numbers": [ "1", "2", "1E+1", "2E+1", "11", "9", "1E+1", "11", "49.9", "7.85", "2", "9", "41", "14.54", "1.75", "0.097", "0.8", "32", "2.3", "2.3", "2.72", "2.15", "0.15", "126", "3", "15", "6", "1", "10.5", "2.3", "6", "10.68", "1", "2.4E+2", "256", "176", "8.7", "4", "1.5", "25", "1.5", "1", "2", "25", "0.05", "0.1", "0.2", "0.4", "0.8", "1.6", "3.2", "1E+1", "6E+1", "1E+1", "3.286", "0.005", "0.4", "0.3", "0.8", "0.8" ], "quantities": [ [ "2", "%" ], [ "2.3", "mm" ], [ "2.3", "mm" ], [ "2.72", "s" ], [ "2.15", "mm" ], [ "0.15", "mm" ], [ "1", "mm" ], [ "176", "mm" ], [ "8.7", "s" ], [ "1.5", "cm" ], [ "25", "%" ], [ "1.5", "cm" ], [ "25", "%" ] ], "formulas": [ "15=3.286", "2.4E+2*256*176", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:T1", "h>25", "h>25", "k=0.8", "n=8.7", "p<0.005" ], "mathematical_variables": [ "c_model", "d_by", "d_by", "d_by", "d_condition", "d_count", "d_for", "d_for", "d_for", "d_for", "d_for", "d_for", "d_for", "d_for_age_with", "d_force_N", "d_from", "d_from_analysis", "d_images", "d_in", "d_in", "d_in", "d_in", "d_location_of", "d_mechanism", "d_mechanism", "d_metric_finding", "d_of_view", "d_on", "d_outcome", "d_signal", "d_similar_activity_to", "d_similar_activity_to", "d_to", "d_to", "d_to", "d_to", "d_to", "d_to", "d_to_compute", "d_to_reveal", "d_using", "d_with", "d_with", "d_with", "d_with", "d_with", "e_color", "e_color", "e_estimation", "e_explanation", "e_extension_mm", "e_gap", "e_in_professional_musicians", "e_provided", "e_resolution", "e_sd", "e_sd", "e_thickness", "e_used", "h_status", "k_usage", "l_causes", "l_causes_2", "l_condition", "l_condition", "l_condition", "l_condition", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_feature", "l_geometry", "l_guidance", "l_model", "l_parameter", "l_recruited", "l_region", "l_region", "l_region", "l_structure", "l_test", "l_trial_length_sec", "l_trial_length_sec", "l_usage", "m_location", "n_age_years", "n_age_years", "n_conditions", "n_criteria", "n_criteria", "o_cue", "p_value", "r_of", "r_of", "r_of", "r_of", "r_of", "r_of", "r_of", "r_review", "s_2", "s_a_form_of", "s_analyzed", "s_confirmation", "s_greater_involvement_of", "s_hypothesis_of", "s_in_dystonia", "s_in_dystonia", "s_included", "s_not_exhibit", "s_per_run", "s_result", "s_stabilisation_of", "s_to", "t_associated_with", "t_definition", "t_duration_sec", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_sources", "t_statistic", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "t_type", "x_parameters_k", "x_size", "y_architecture", "y_architecture", "y_concern", "y_in_S1", "y_measured_by", "y_metric" ], "operators": [ ">", "=", ">", ">", "=", "<", "=" ] }, "after": { "numbers": [ "1", "2", "1E+1", "2E+1", "11", "9", "1E+1", "11", "49.9", "7.85", "2", "9", "41", "14.54", "1.75", "0.097", "0.8", "32", "2.3", "2.3", "2.72", "2.15", "0.15", "126", "3", "15", "6", "1", "10.5", "2.3", "6", "10.68", "1", "2.4E+2", "256", "176", "8.7", "4", "1.5", "25", "1.5", "1", "2", "25", "0.05", "0.1", "0.2", "0.4", "0.8", "1.6", "3.2", "1E+1", "6E+1", "1E+1", "3.286", "0.005", "0.4", "0.3", "0.8", "0.8" ], "quantities": [ [ "2", "%" ], [ "2.3", "mm" ], [ "2.3", "mm" ], [ "2.72", "s" ], [ "2.15", "mm" ], [ "0.15", "mm" ], [ "1", "mm" ], [ "176", "mm" ], [ "8.7", "s" ], [ "1.5", "cm" ], [ "25", "%" ], [ "1.5", "cm" ], [ "25", "%" ] ], "formulas": [ "15=3.286", "2.4E+2*256*176", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:T1", "h>25", "h>25", "k=0.8", "n=8.7", "p<0.005" ], "mathematical_variables": [ "c_model", "d_by", "d_by", "d_by", "d_condition", "d_count", "d_for", "d_for", "d_for", "d_for", "d_for", "d_for", "d_for", "d_for_age_with", "d_force_N", "d_from", "d_from_analysis", "d_images", "d_in", "d_in", "d_in", "d_in", "d_location_of", "d_mechanism", "d_mechanism", "d_metric_finding", "d_of_view", "d_on", "d_outcome", "d_signal", "d_similar_activity_to", "d_similar_activity_to", "d_to", "d_to", "d_to", "d_to", "d_to", "d_to", "d_to_compute", "d_to_reveal", "d_using", "d_with", "d_with", "d_with", "d_with", "d_with", "e_color", "e_color", "e_estimation", "e_explanation", "e_extension_mm", "e_gap", "e_in_professional_musicians", "e_provided", "e_resolution", "e_sd", "e_sd", "e_thickness", "e_used", "h_status", "k_usage", "l_causes", "l_causes_2", "l_condition", "l_condition", "l_condition", "l_condition", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_entity_type", "l_feature", "l_geometry", "l_guidance", "l_model", "l_parameter", "l_recruited", "l_region", "l_region", "l_region", "l_structure", "l_test", "l_trial_length_sec", "l_trial_length_sec", "l_usage", "m_location", "n_age_years", "n_age_years", "n_conditions", "n_criteria", "n_criteria", "o_cue", "p_value", "r_of", "r_of", "r_of", "r_of", "r_of", "r_of", "r_of", "r_review", "s_2", "s_a_form_of", "s_analyzed", "s_confirmation", "s_greater_involvement_of", "s_hypothesis_of", "s_in_dystonia", "s_in_dystonia", "s_included", "s_not_exhibit", "s_per_run", "s_result", "s_stabilisation_of", "s_to", "t_associated_with", "t_definition", "t_duration_sec", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_id", "t_sources", "t_statistic", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "t_type", "x_parameters_k", "x_size", "y_architecture", "y_architecture", "y_concern", "y_in_S1", "y_measured_by", "y_metric" ], "operators": [ ">", "=", ">", ">", "=", "<", "=" ] }, "numeric_content_present": true, "formula_content_present": true, "exact_text_unchanged": false, "interpretation": "Conservative preservation filter; changed signatures require review and can include harmless reordering or equivalent unit/algebra conversions" } }, "condition": "qwen_ku1000_bt", "source_metadata": { "title": "Intact finger representation within primary sensorimotor cortex of Musician's Dystonia", "authors": [ "Anna Sadnicka", "T Wiestler", "K Butler", "E Altenmüller", "M J Edwards", "N Ejaz", "J Diedrichsen" ], "doi": "", "year": "", "openalex_id": "", "origin": "Existing disjoint 20-paper benchmark cohort", "metadata_added_for_attribution_only": true, "metadata_not_used_to_change_QA_context": true } }