ABSTRACT
However, if one assumes that conceptual information is organised by object domain within neuroanatomically defined modalities, then it must also be assumed that conceptual information within a given domain is not functionally dissociable across modalities. But then the following question arises: Why did WC not present with a general conceptual deficit? In other words, if WC had a deficit for conceptual knowledge of how objects are used, and itis assumed that conceptual knowledge cannot be functionally dissociated across modalities, then this case presents a paradox. A straight-forward solution is to assume that the functional locus of damage in this patient is to the system that stores sensorimotor engrams. In other words, we might draw an analogy between the functional impairment in patient WC and the functional impairment in patients with damage to the visual/structural description system. However, this interpretation of the impairment in patient WC presupposes a positive answer to the question: Must we distinguish between modality-specific input/output representations and conceptual knowledge?
