Behavioral and Brain Sciences

Open Peer Commentary

Plasticity in high-order cognition: Evidence of dissociation in aphasia

Rosemary Varleya1

a1 Human Communication Sciences, University of Sheffield, Sheffield S10 2TA, United Kingdom. r.a.varley@sheffield.ac.uk http://www.shef.ac.uk/hcs/sta-/varley

Abstract

High-order constructs such as intelligence result from the interaction of numerous processing systems, one of which is language. However, in determining the role of language in intelligence, attention must be paid to evidence from lesion studies and, in particular, evidence of dissociation of functions where high-order cognition can be demonstrated in face of profound aphasia.

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