{ "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": "trained", "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 is caused by distorted finger representations in the primary somatosensory cortex using fMRI and multivariate analysis. Results showed that finger representations remain intact and similar to healthy controls, suggesting the disorder arises from higher-order skill encoding disruptions. The research challenges the hypothesis that task-specific dystonia is rooted in primary somatotopic reorganization.", "entities": [ { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "other", "aliases": [], "attributes": { "symptom": "Persistent decline in motor skills during the musical performance ", "prevalence_in_professional_musicians": "1-2%", "impact": "end of performance careers, devastating impact on individual and culture", "model_entity_type": "condition" }, "relationships": [ { "predicate": "characterized_by", "target": "selective motor impairment during specific skill performance", "attributes": {}, "target_id": null }, { "predicate": "hypothesized_cause", "target": "maladaptive neural changes to somatotopic organisation of finger representations in primary somatosensory cortex", "attributes": {}, "target_id": null }, { "predicate": "alternative_cause", "target": "higher order disruption of skill encoding", "attributes": {}, "target_id": null } ] }, { "name": "primary somatosensory cortex", "entity_id": "primary_somatosensory_cortex", "entity_type": "other", "aliases": [], "attributes": { "abbreviation": "S1", "model_entity_type": "brain_region" }, "relationships": [ { "predicate": "contains", "target": "finger representations", "attributes": {}, "target_id": null }, { "predicate": "studied_in", "target": "Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "primary motor cortex", "entity_id": "primary_motor_cortex", "entity_type": "other", "aliases": [], "attributes": { "abbreviation": "M1", "model_entity_type": "brain_region" }, "relationships": [ { "predicate": "contains", "target": "finger representations", "attributes": {}, "target_id": null }, { "predicate": "studied_in", "target": "Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "functional MRI", "entity_id": "functional_mri", "entity_type": "method", "aliases": [], "attributes": { "abbreviation": "fMRI" }, "relationships": [ { "predicate": "used_to_characterise", "target": "activity patterns elicited during 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 all previously studied spatial metrics " }, "relationships": [ { "predicate": "revealed", "target": "invariant organisation of finger representations", "attributes": {}, "target_id": null }, { "predicate": "found_equivalent_dissimilarity_architecture_for", "target": "musicians with and without dystonia", "attributes": {}, "target_id": null } ] }, { "name": "spatial analysis", "entity_id": "spatial_analysis", "entity_type": "method", "aliases": [], "attributes": { "performance": "poorly captured digit representations in musicians" }, "relationships": [ { "predicate": "found_clear_somatotopy_with_optimised_metric", "target": "no difference in spatial geometry between fingers", "attributes": {}, "target_id": null } ] }, { "name": "robotic keyboard device", "entity_id": "robotic_keyboard_device", "entity_type": "other", "aliases": [], "attributes": { "function": "allowed fMRI characterisation of activity patterns elicited during passive extension and active finger presses", "model_entity_type": "tool" }, "relationships": [ { "predicate": "used_in", "target": "study of Musician's Dystonia", "attributes": {}, "target_id": null } ] }, { "name": "task-specific dystonia", "entity_id": "task_specific_dystonia", "entity_type": "other", "aliases": [], "attributes": { "definition": "isolated dystonia presenting with selective motor impairment during performance of a specific skill", "model_entity_type": "condition" }, "relationships": [ { "predicate": "example_of", "target": "Musician's Dystonia", "attributes": {}, "target_id": null }, { "predicate": "animal_model_shows", "target": "10-20 fold increase in size of sensory receptive fields of neurons", "attributes": {}, "target_id": null }, { "predicate": "animal_model_shows", "target": "breakdown of normally segregated areas", "attributes": {}, "target_id": null } ] }, { "name": "homunculus", "entity_id": "homunculus", "entity_type": "concept", "aliases": [], "attributes": { "description": "Iconic representation of body parts mapped onto different areas of the brain. " }, "relationships": [ { "predicate": "contrasted_with", "target": "fMRI studies showing substantial overlap between cortical areas activated by different body parts", "attributes": {}, "target_id": null } ] }, { "name": "higher order control regions", "entity_id": "higher_order_control_regions", "entity_type": "other", "aliases": [], "attributes": { "examples": "premotor and parietal cortices", "model_entity_type": "brain_region" }, "relationships": [ { "predicate": "encode", "target": "complex and more abstract features of movement", "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": [ "normalized unsupported entity type 'condition' for \"Musician's Dystonia\"", "normalized unsupported entity type 'brain_region' for 'primary somatosensory cortex'", "normalized unsupported entity type 'brain_region' for 'primary motor cortex'", "normalized unsupported entity type 'tool' for 'robotic keyboard device'", "normalized unsupported entity type 'condition' for 'task-specific dystonia'", "normalized unsupported entity type 'brain_region' for 'higher order control regions'" ] }, { "chunk_index": 1, "context_summary": "The study compared spatial and pattern-similarity metrics to assess finger representations in Musician's Dystonia, finding that representation similarity analysis (RSA) was more reliable than spatial metrics. A group of 11 patients with task-specific dystonia was compared to 9 healthy controls, with data from 9 patients and 9 controls included in the final analysis. The fMRI experiment utilized a custom pneumatic device to measure BOLD responses during passive finger extension, revealing no significant difference in dissimilarity architecture between groups.", "entities": [ { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "other", "aliases": [], "attributes": { "symptom_location": "right-hand whist playing", "bimanual_symptoms": "2 patients", "model_entity_type": "condition" }, "relationships": [ { "predicate": "diagnosed_by", "target": "Two neurologists (MJE and AS)", "attributes": {}, "target_id": null }, { "predicate": "measured_by", "target": "Tubiana and Chamagne scale", "attributes": {}, "target_id": null } ] }, { "name": "Patient Group", "entity_id": "patient_group", "entity_type": "other", "aliases": [], "attributes": { "count": 11, "gender": "10 male", "mean_age": 49.9, "age_sd": 7.85, "recruitment_sites": "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": "group" }, "relationships": [ { "predicate": "analyzed_count", "target": "9", "attributes": {}, "target_id": null }, { "predicate": "compared_to", "target": "Control Group", "attributes": {}, "target_id": null } ] }, { "name": "Control Group", "entity_id": "control_group", "entity_type": "other", "aliases": [], "attributes": { "count": 9, "gender": "all male", "mean_age": 41.0, "age_sd": 14.54, "exclusion_criteria": "No prior history of musculoskeletal or functional limitations in the upper extremities. ", "model_entity_type": "group" }, "relationships": [ { "predicate": "analyzed_count", "target": "9", "attributes": {}, "target_id": null }, { "predicate": "matched_for", "target": "age", "attributes": {}, "target_id": null } ] }, { "name": "Representation Similarity Analysis (RSA)", "entity_id": "representation_similarity_analysis_rsa", "entity_type": "method", "aliases": [], "attributes": { "reliability_s1": ">0.8", "comparison": "more consistent than spatial metrics" }, "relationships": [ { "predicate": "assesses", "target": "similarity between activity patterns for different fingers", "attributes": {}, "target_id": null }, { "predicate": "result_s1", "target": "Dissimilarity architecture 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", "coil": "32-channel head coil", "resolution": "2.3mm x 2.3mm", "sequence": "2D echo-planar sequence", "tr": "2.72s", "slices": "32 interleave slices", "slice_thickness": "2.15mm", "gap": "0.15mm", "matrix_size": "96x96" }, "relationships": [ { "predicate": "measures", "target": "BOLD responses", "attributes": {}, "target_id": null }, { "predicate": "conditions", "target": "passive and active movement", "attributes": {}, "target_id": null }, { "predicate": "reports_only", "target": "passive movement condition", "attributes": {}, "target_id": null } ] }, { "name": "Passive Movement Condition", "entity_id": "passive_movement_condition", "entity_type": "other", "aliases": [], "attributes": { "device": "fMRI compatible device with five piano-style keys", "mechanism": "pneumatic piston", "extension_distance": "~15mm", "trial_length": "10.5s", "repetition": "6 times", "fixation": "star in center of screen", "cue_color": "red", "cue_duration": "1.36s", "model_entity_type": "experimental_condition" }, "relationships": [ { "predicate": "excludes", "target": "motor behavioural confounds", "attributes": {}, "target_id": null }, { "predicate": "result", "target": "No difference between patients and controls", "attributes": {}, "target_id": null } ] }, { "name": "Active Movement Condition", "entity_id": "active_movement_condition", "entity_type": "other", "aliases": [], "attributes": { "task": "individuated finger presses", "force_required": "2.3N", "trial_length": "10.68s", "cue_color": "green", "cue_duration": "1.36s", "model_entity_type": "experimental_condition" }, "relationships": [ { "predicate": "result", "target": "No difference between patients and controls", "attributes": {}, "target_id": null } ] }, { "name": "Spatial Metrics", "entity_id": "spatial_metrics", "entity_type": "measurement", "aliases": [], "attributes": { "reliability": "less consistent than RSA" }, "relationships": [ { "predicate": "compared_to", "target": "Representation Similarity Analysis (RSA)", "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 'group' for 'Patient Group'", "normalized unsupported entity type 'group' for 'Control Group'", "normalized unsupported entity type 'experimental_condition' for 'Passive Movement Condition'", "normalized unsupported entity type 'experimental_condition' for 'Active Movement Condition'" ] }, { "chunk_index": 2, "context_summary": "The study details the fMRI preprocessing pipeline, including T1-weighted anatomical scan acquisition and surface reconstruction using Freesurfer. It defines specific regions of interest in the primary motor and somatosensory cortices, excluding voxels near the central sulcus. The analysis employs spatial metrics, including maximal activity and center of gravity with varying weights, alongside representational similarity analysis using Mahalanobis distance.", "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 x 256 x 176 mm" }, "relationships": [ { "predicate": "used_for", "target": "surface reconstruction", "attributes": {}, "target_id": null } ] }, { "name": "SPM tools", "entity_id": "spm_tools", "entity_type": "method", "aliases": [], "attributes": { "function": "minimal preprocessing" }, "relationships": [ { "predicate": "processes", "target": "functional imaging data", "attributes": {}, "target_id": null } ] }, { "name": "Freesurfer", "entity_id": "freesurfer", "entity_type": "method", "aliases": [], "attributes": { "function": "surface reconstruction" }, "relationships": [ { "predicate": "reconstructs", "target": "pial and white-grey matter surfaces", "attributes": {}, "target_id": null } ] }, { "name": "fsaverage", "entity_id": "fsaverage", "entity_type": "concept", "aliases": [], "attributes": { "type": "common template" }, "relationships": [ { "predicate": "used_for", "target": "surface registration", "attributes": {}, "target_id": null } ] }, { "name": "hand area of primary motor cortex (M1)", "entity_id": "hand_area_of_primary_motor_cortex_m1", "entity_type": "place", "aliases": [], "attributes": { "Brodmann_area": "4", "spatial_extent": "1.5 cm above and below hand-knob" }, "relationships": [ { "predicate": "defined_by", "target": "probabilistic cyto-architectonic maps", "attributes": {}, "target_id": null } ] }, { "name": "hand area of primary somatosensory cortex (S1)", "entity_id": "hand_area_of_primary_somatosensory_cortex_s1", "entity_type": "place", "aliases": [], "attributes": { "Brodmann_area": "3a and 3b", "spatial_extent": "1.5 cm above and below hand-knob" }, "relationships": [ { "predicate": "defined_by", "target": "probabilistic cyto-architectonic maps", "attributes": {}, "target_id": null } ] }, { "name": "central sulcus exclusion", "entity_id": "central_sulcus_exclusion", "entity_type": "method", "aliases": [], "attributes": { "threshold": "25% volume on opposite side" }, "relationships": [ { "predicate": "prevents", "target": "signal contamination", "attributes": {}, "target_id": null } ] }, { "name": "maximal activity location", "entity_id": "maximal_activity_location", "entity_type": "measurement", "aliases": [], "attributes": { "definition": "location of maximal activity for each finger" }, "relationships": [ { "predicate": "used_in", "target": "spatial analysis", "attributes": {}, "target_id": null } ] }, { "name": "center of gravity (COG)", "entity_id": "center_of_gravity_cog", "entity_type": "measurement", "aliases": [], "attributes": { "definition": "Average x and y coordinates of the surface points, weighted according to the t-values. " }, "relationships": [ { "predicate": "used_in", "target": "spatial analysis", "attributes": {}, "target_id": null } ] }, { "name": "weighted softmax function", "entity_id": "weighted_softmax_function", "entity_type": "method", "aliases": [], "attributes": { "parameter_k_values": [ 0.05, 0.1, 0.2, 0.4, 0.8, 1.6, 3.2 ] }, "relationships": [ { "predicate": "used_for", "target": "COG weighting", "attributes": {}, "target_id": null } ] }, { "name": "MANOVA", "entity_id": "manova", "entity_type": "method", "aliases": [], "attributes": { "dependent_measures": "x and y coordinates for each finger" }, "relationships": [ { "predicate": "tests", "target": "systematic differences in spatial locations", "attributes": {}, "target_id": null } ] }, { "name": "Euclidian distance", "entity_id": "euclidian_distance", "entity_type": "measurement", "aliases": [], "attributes": { "pairs": "10 possible pairs of digits" }, "relationships": [ { "predicate": "compared_by", "target": "Student t-test", "attributes": {}, "target_id": null } ] }, { "name": "representational similarity analysis (RSA)", "entity_id": "representational_similarity_analysis_rsa", "entity_type": "method", "aliases": [], "attributes": { "metric": "cross-validated Mahalanobis distance" }, "relationships": [ { "predicate": "assesses", "target": "similarity between activity patterns", "attributes": {}, "target_id": null }, { "predicate": "ignores", "target": "spatial arrangement", "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 utilized cross-validated Mahalanobis distances and surface-based searchlight analysis to evaluate finger representations in the primary sensorimotor cortex. Spatial metrics, including center of gravity and softmax-weighted activation, showed low reliability, whereas representational similarity analysis (RSA) demonstrated high reliability. No significant differences in finger representation location, extent, or pattern arrangement were found between musicians with dystonia and healthy controls.", "entities": [ { "name": "cross-validated Mahalanobis distance", "entity_id": "cross_validated_mahalanobis_distance", "entity_type": "measurement", "aliases": [], "attributes": { "purpose": "unbiased estimate of squared distance between patterns", "procedure": "estimated from data of current run or all other runs" }, "relationships": [ { "predicate": "used_to_calculate", "target": "dissimilarity between finger patterns", "attributes": {}, "target_id": null } ] }, { "name": "surface-based searchlight analysis", "entity_id": "surface_based_searchlight_analysis", "entity_type": "method", "aliases": [], "attributes": { "searchlight_size": "60 voxels", "searchlight_location": "between pial and white-matter surface", "statistical_threshold": "t15 = 3.2860, p < 0.005", "correction_method": "Gaussian Field map correction" }, "relationships": [ { "predicate": "detects", "target": "overall differences in location or spatial extent of digit representation", "attributes": {}, "target_id": null }, { "predicate": "maps", "target": "cortical regions containing digit information", "attributes": {}, "target_id": null } ] }, { "name": "softmax approach", "entity_id": "softmax_approach", "entity_type": "method", "aliases": [], "attributes": { "parameter": "k", "k_values": "k=0 (equal weight), k=infinity (most active vertex only)", "optimal_k": "0.8" }, "relationships": [ { "predicate": "used_for", "target": "characterizing spatial layout of finger representations", "attributes": {}, "target_id": null }, { "predicate": "outperformed", "target": "maximal activation location and center of gravity", "attributes": {}, "target_id": null } ] }, { "name": "split-half reliability", "entity_id": "split_half_reliability", "entity_type": "measurement", "aliases": [], "attributes": { "COG_S1_correlation": "0.4", "COG_M1_correlation": "0.3", "RSA_correlation": ">0.8" }, "relationships": [ { "predicate": "evaluated", "target": "spatial metrics and RSA measures", "attributes": {}, "target_id": null } ] }, { "name": "multidimensional scaling", "entity_id": "multidimensional_scaling", "entity_type": "method", "aliases": [], "attributes": { "dimensionality": "two-dimensional" }, "relationships": [ { "predicate": "visualizes", "target": "relative arrangement of digits", "attributes": {}, "target_id": null } ] }, { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "other", "aliases": [], "attributes": { "finding": "no significant difference in finger representation location, extent, or pattern arrangement", "model_entity_type": "condition" }, "relationships": [ { "predicate": "compared_to", "target": "healthy control musicians", "attributes": {}, "target_id": null } ] }, { "name": "healthy control musicians", "entity_id": "healthy_control_musicians", "entity_type": "other", "aliases": [], "attributes": { "finding": "The fingerprints on S1 and M1 are clearly visible. ", "model_entity_type": "group" }, "relationships": [ { "predicate": "compared_to", "target": "Musician's Dystonia", "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 'group' for 'healthy control musicians'" ] }, { "chunk_index": 4, "context_summary": "The study contradicts previous reports by finding no evidence of distorted finger representations in the primary sensorimotor cortex of musicians with dystonia. It proposes that the disorder is encoded in higher-order skill networks rather than primary somatotopic maps. The findings suggest that rehabilitation should focus on these higher-order regions rather than primary motor or sensory areas.", "entities": [ { "name": "Musician's Dystonia", "entity_id": "musician_s_dystonia", "entity_type": "other", "aliases": [], "attributes": { "symptom": "loss of finger control", "proposed_mechanism": "disruption in hierarchical skill network", "primary_cortex_status": "intact", "model_entity_type": "condition" }, "relationships": [ { "predicate": "contradicts_report", "target": "abnormal finger representations in primary sensorimotor cortex", "attributes": {}, "target_id": null }, { "predicate": "associated_with", "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 (S1) and primary motor (M1) cortices", "function": "basic digit representation", "model_entity_type": "brain_region" }, "relationships": [ { "predicate": "contains_intact_representations", "target": "Musician's Dystonia", "attributes": {}, "target_id": null }, { "predicate": "excludes_task_specific_encoding", "target": "movement sequences", "attributes": {}, "target_id": null } ] }, { "name": "hierarchical skill network", "entity_id": "hierarchical_skill_network", "entity_type": "concept", "aliases": [], "attributes": { "location": "premotor and parietal cortices", "function": "encodes movement sequences as chunks or longer sequences" }, "relationships": [ { "predicate": "proposed_site_of_disruption", "target": "Musician's Dystonia", "attributes": {}, "target_id": null }, { "predicate": "recruits", "target": "higher order regions", "attributes": {}, "target_id": null } ] }, { "name": "spatial centre-of-gravity and location-of-maximal-activation metrics", "entity_id": "spatial_centre_of_gravity_and_location_of_maximal_activation_metrics", "entity_type": "method", "aliases": [], "attributes": { "reliability": "low", "applicability": "failed to reveal invariant organisation in healthy musicians" }, "relationships": [ { "predicate": "unsuitable_for_detecting_deviations", "target": "task-specific dystonia", "attributes": {}, "target_id": null } ] }, { "name": "Representational similarity analysis (RSA)", "entity_id": "representational_similarity_analysis_rsa", "entity_type": "method", "aliases": [], "attributes": { "reliability": "high", "robustness": "within and between individuals" }, "relationships": [ { "predicate": "uncovers_robust_representations", "target": "finger maps", "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": "elicits_similar_activity_to", "target": "active finger press condition", "attributes": {}, "target_id": null }, { "predicate": "reveals_no_changes_in", "target": "representational architecture", "attributes": {}, "target_id": null } ] }, { "name": "active finger press condition", "entity_id": "active_finger_press_condition", "entity_type": "other", "aliases": [], "attributes": { "focus": "Muscle activation patterns that occur during finger presses near the isometric point. ", "model_entity_type": "experimental_condition" }, "relationships": [ { "predicate": "elicits_similar_activity_to", "target": "passive finger lift condition", "attributes": {}, "target_id": null }, { "predicate": "reveals_no_changes_in", "target": "representational architecture", "attributes": {}, "target_id": null } ] }, { "name": "over-trained skills", "entity_id": "over_trained_skills", "entity_type": "concept", "aliases": [], "attributes": { "features": "extended planning horizons/sequences, narrow capacity to generalise" }, "relationships": [ { "predicate": "suggests_shared_neural_vulnerabilities", "target": "task-specific dystonia", "attributes": {}, "target_id": null } ] }, { "name": "chunking", "entity_id": "chunking", "entity_type": "concept", "aliases": [], "attributes": { "definition": "grouped elements (e.g., 4-2-3)", "function": "activates elementary movement components" }, "relationships": [ { "predicate": "requires_different_higher_order_control", "target": "task-specific deficit", "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 'brain_region' for 'primary sensorimotor cortex'", "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": "The study critiques early retraining methods based on the distorted somatotopy hypothesis, noting their lack of clinical efficacy. It proposes that intact primary finger representations support task-specific sensorimotor interventions like differential learning. The authors acknowledge limitations regarding sample size and fMRI sensitivity while defending their findings against previous reports of altered somatotopy.", "entities": [ { "name": "distorted somatotopy hypothesis", "entity_id": "distorted_somatotopy_hypothesis", "entity_type": "concept", "aliases": [], "attributes": { "basis": "distorted finger representations in somatosensory cortex", "proposed_intervention": "sensory super-training (e.g., learning braille)" }, "relationships": [ { "predicate": "critiqued_by", "target": "current study findings", "attributes": {}, "target_id": null }, { "predicate": "associated_with", "target": "early retraining methods", "attributes": {}, "target_id": null } ] }, { "name": "sensory super-training", "entity_id": "sensory_super_training", "entity_type": "method", "aliases": [], "attributes": { "example": "learning braille", "goal": "improving sensory discrimination to remap dystonic digit maps", "clinical_status": "not widely used, not reliably effective" }, "relationships": [ { "predicate": "developed_under", "target": "distorted somatotopy hypothesis", "attributes": {}, "target_id": null } ] }, { "name": "task-specific sensorimotor interventions", "entity_id": "task_specific_sensorimotor_interventions", "entity_type": "method", "aliases": [], "attributes": { "examples": [ "sensorimotor retraining", "differential learning" ], "rationale": "intact neural representation of sensory and execution information" }, "relationships": [ { "predicate": "encouraged_by", "target": "current study findings", "attributes": {}, "target_id": null } ] }, { "name": "current study findings", "entity_id": "current_study_findings", "entity_type": "event", "aliases": [], "attributes": { "primary_result": "No indications of unusual finger representations in the primary sensorimotor cortex. ", "methodology": "fMRI and multivariate pattern analysis", "limitation": "A result of zero could be caused by an insufficient sample size or a low sensitivity of the fMRI measurement. ", "methodological_defense": "previous techniques for showing alterations were found unreliable" }, "relationships": [ { "predicate": "supports", "target": "alternative disease models", "attributes": {}, "target_id": null }, { "predicate": "contradicts", "target": "previous reports of altered somatic finger representations", "attributes": {}, "target_id": null } ] }, { "name": "previous reports of altered somatic finger representations", "entity_id": "previous_reports_of_altered_somatic_finger_representations", "entity_type": "event", "aliases": [], "attributes": { "critique": "did not use tasks that generated dystonia" }, "relationships": [ { "predicate": "challenged_by", "target": "current study findings", "attributes": {}, "target_id": null } ] } ], "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": 10, "rolled_back": false, "original_context_sha256": "b68a40c36845582150c10c3110346173395f183577196ef315b3536c98b12df9", "final_context_sha256": "a5f71db036bc97032b1c4f3dc8a38f566542ddadb576e8ab317d0f8f1c3578ed", "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", "9", "9", "2", "11", "1E+1", "49.9", "7.85", "9", "9", "41", "14.54", "9", "0.8", "32", "2.3", "2.3", "2.72", "32", "2.15", "0.15", "15", "10.5", "6", "1.36", "10.68", "1.36", "1", "2.4E+2", "256", "176", "4", "1.5", "1.5", "25", "0.05", "0.1", "0.2", "0.4", "0.8", "1.6", "3.2", "1E+1", "6E+1", "3.286", "0.005", "0", "0.8", "0.4", "0.3", "0.8", "4", "2", "3" ], "quantities": [ [ "2", "%" ], [ "2.3", "mm" ], [ "2.3", "mm" ], [ "2.72", "s" ], [ "2.15", "mm" ], [ "0.15", "mm" ], [ "15", "mm" ], [ "10.5", "s" ], [ "1.36", "s" ], [ "10.68", "s" ], [ "1.36", "s" ], [ "1", "mm" ], [ "176", "mm" ], [ "1.5", "cm" ], [ "1.5", "cm" ], [ "25", "%" ] ], "formulas": [ "15=3.286", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:T1", "chemical:T1", "k=0", "k=i", "p<0.005" ], "mathematical_variables": [ "A_correlation", "G_M1_correlation", "G_S1_correlation", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_cause", "d_clear_somatotopy_with_optimised_metric", "d_count", "d_count", "d_equivalent_dissimilarity_architecture_for", "d_for", "d_for", "d_for", "d_for", "d_for", "d_in", "d_in", "d_in", "d_in", "d_in", "d_intervention", "d_mechanism", "d_of_view", "d_site_of_disruption", "d_to", "d_to", "d_to", "d_to", "d_to_calculate", "d_to_characterise", "d_under", "d_with", "d_with", "d_with", "e_cause", "e_color", "e_color", "e_duration", "e_duration", "e_for_detecting_deviations", "e_in_professional_musicians", "e_of", "e_required", "e_sd", "e_sd", "e_thickness", "k_values", "l_condition", "l_condition", "l_condition", "l_condition", "l_defense", "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_entity_type", "l_entity_type", "l_entity_type", "l_extent", "l_extent", "l_k", "l_length", "l_length", "l_model_shows", "l_model_shows", "l_status", "l_symptoms", "l_threshold", "m_location", "n_age", "n_age", "n_area", "n_area", "n_criteria", "n_criteria", "n_distance", "n_method", "n_region", "n_region", "n_region", "n_region", "r_k_values", "s_different_higher_order_control", "s_intact_representations", "s_no_changes_in", "s_no_changes_in", "s_only", "s_report", "s_robust_representations", "s_shared_neural_vulnerabilities", "s_similar_activity_to", "s_similar_activity_to", "s_task_specific_encoding", "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_location", "t_measures", "t_s1", "t_sites", "t_size", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "x_size", "y_cortex_status", "y_result", "y_s1" ], "operators": [ ">", "=", "<", "=", "=", ">" ] }, "after": { "numbers": [ "1", "2", "1E+1", "2E+1", "11", "9", "9", "9", "2", "11", "1E+1", "49.9", "7.85", "9", "9", "41", "14.54", "9", "0.8", "32", "2.3", "2.3", "2.72", "32", "2.15", "0.15", "15", "10.5", "6", "1.36", "10.68", "1.36", "1", "2.4E+2", "256", "176", "4", "1.5", "1.5", "25", "0.05", "0.1", "0.2", "0.4", "0.8", "1.6", "3.2", "1E+1", "6E+1", "3.286", "0.005", "0", "0.8", "0.4", "0.3", "0.8", "4", "2", "3" ], "quantities": [ [ "2", "%" ], [ "2.3", "mm" ], [ "2.3", "mm" ], [ "2.72", "s" ], [ "2.15", "mm" ], [ "0.15", "mm" ], [ "15", "mm" ], [ "10.5", "s" ], [ "1.36", "s" ], [ "10.68", "s" ], [ "1.36", "s" ], [ "1", "mm" ], [ "176", "mm" ], [ "1.5", "cm" ], [ "1.5", "cm" ], [ "25", "%" ] ], "formulas": [ "15=3.286", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:M1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:S1", "chemical:T1", "chemical:T1", "k=0", "k=i", "p<0.005" ], "mathematical_variables": [ "A_correlation", "G_M1_correlation", "G_S1_correlation", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_by", "d_cause", "d_clear_somatotopy_with_optimised_metric", "d_count", "d_count", "d_equivalent_dissimilarity_architecture_for", "d_for", "d_for", "d_for", "d_for", "d_for", "d_in", "d_in", "d_in", "d_in", "d_in", "d_intervention", "d_mechanism", "d_of_view", "d_site_of_disruption", "d_to", "d_to", "d_to", "d_to", "d_to_calculate", "d_to_characterise", "d_under", "d_with", "d_with", "d_with", "e_cause", "e_color", "e_color", "e_duration", "e_duration", "e_for_detecting_deviations", "e_in_professional_musicians", "e_of", "e_required", "e_sd", "e_sd", "e_thickness", "k_values", "l_condition", "l_condition", "l_condition", "l_condition", "l_defense", "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_entity_type", "l_entity_type", "l_entity_type", "l_extent", "l_extent", "l_k", "l_length", "l_length", "l_model_shows", "l_model_shows", "l_status", "l_symptoms", "l_threshold", "m_location", "n_age", "n_age", "n_area", "n_area", "n_criteria", "n_criteria", "n_distance", "n_method", "n_region", "n_region", "n_region", "n_region", "r_k_values", "s_different_higher_order_control", "s_intact_representations", "s_no_changes_in", "s_no_changes_in", "s_only", "s_report", "s_robust_representations", "s_shared_neural_vulnerabilities", "s_similar_activity_to", "s_similar_activity_to", "s_task_specific_encoding", "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_location", "t_measures", "t_s1", "t_sites", "t_size", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "t_summary", "x_size", "y_cortex_status", "y_result", "y_s1" ], "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": "gemma12_r128_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 } }