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1
Dissociation between semantic representations for motion and action verbs: Evidence from patients with left hemisphere lesions
Abstract: This multiple single case study contrasted left hemisphere stroke patients (N= 6) to healthy age-matched control participants (N= 15) on their understanding of action (e.g., holding, clenching) and motion verbs (e.g., crumbling, flowing). The tasks required participants to correctly identify the matching verb or associated picture. Dissociations on action and motion verb content depending on lesion site were expected. As predicted for verbs containing an action and/or motion content, modified t-tests confirmed selective deficits in processing motion verbs in patients with lesions involving posterior parietal and lateral occipitotemporal cortex. In contrast, deficits in verbs describing motionless actions were found in patients with more anterior lesions sparing posterior parietal and lateral occipitotemporal cortex. These findings support the hypotheses that semantic representations for action and motion are behaviorally and neuro-anatomically dissociable. The findings clarify the differential and critical role of perceptual and motor regions in processing modality-specific semantic knowledge as opposed to a supportive but not necessary role. We contextualize these results within theories from both cognitive psychology and cognitive neuroscience that make claims over the role of sensory and motor information in semantic representation.
Keyword: affordances; aphasia; embodied cognition; lateral occipitotemporal cortex; left hemisphere; neuropsychology; semantic representation
URL: http://hdl.handle.net/1893/25196
https://doi.org/10.3389/fnhum.2017.00035
http://dspace.stir.ac.uk/bitstream/1893/25196/1/fnhum-11-00035.pdf
BASE
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2
The Lateral and Ventromedial Prefrontal Cortex Work as a Dynamic Integrated System: Evidence from fMRI Connectivity Analysis
In: Journal of cognitive neuroscience. - Cambridge, Mass. : MIT Press Journals 21 (2009) 1, 141-154
OLC Linguistik
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3
Methods in mind
Gazzaniga, Michael S.; Russell, Tamara; Senior, Carl. - Cambridge, Mass. : MIT Press, 2006, [2006]©2006
MPI für Psycholinguistik
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4
Methods in mind
Senior, Carl; Russell, Tamara; Gazzaniga, Michael S.. - Cambridge, Mass. : MIT Press, 2006
MPI für Psycholinguistik
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5
Recognizing one's own face
In: Cognition. - Amsterdam [u.a] : Elsevier 78 (2001) 1, B1
OLC Linguistik
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6
Recognizing one's own face
In: Cognition. - Amsterdam [u.a] : Elsevier 78 (2001) 1, B1-B15
BLLDB
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7
Cognitive neuroscience for the 21st century : 2000 Autumn School in Cognitive Neuroscience, 26-29 September 2000, University of Oxford, UK
In: Trends in cognitive sciences. - Amsterdam [u.a.] : Elsevier Science 4 (2000) 12, 444-445
BLLDB
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