Abstract and Keywords
Transcortical sensory aphasia (TCSA) has historically been regarded as a disconnection syndrome characterized by impaired access between words and otherwise intact core object knowledge. Yet, an extensive body of research has also demonstrated a range of associated nonverbal semantic deficits in TCSA, suggestive of a multimodal semantic impairment that transcends representational modality (i.e., language). Here we delineate the semantic impairment incurred in TCSA within a neurologically constrained model of semantic memory premised upon dynamic interactivity between stored knowledge (e.g., semantic features) and integrative processes that serve to bind this knowledge into cohesive object representations. We discuss practical implications for clinical aphasiology and outline considerations for the broader fields of cognitive neuropsychology and neurolinguistics.
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