1,721,105 research outputs found
From neuropsychology to mental structure
No full textPreface; 1. Introducing cognitive neuropsychology; 2. Converging operations: specific syndromes and evidence from normal subjects; 3. Inferences from neuropsychological findings; 4. Central processes: equipotentiality or modularity?; References; Subject index; Author index
Cognitive neuropsychology and rehabilitation: Is pessimism justified?
No full textThe paper considers the possible role that cognitive neuropsychology might play in neuropsychological rehabilitation. Issues specifically considered include (i) under what conditions can alternative systems substitute for an impaired one, (ii) the potential efficacy of direct retraining, (iii) the acquisition and voluntary application of new schemes
Multiple semantics: whose confusions?
No full textThe argument that the concept of ''multiple semantics'' is multiply confused, as presented in Caramazza, Hillis, Rapp, and Romani (1990) is considered and criticised. It is argued that Caramazza et al. were attempting to force the discussion of semantic processing into too rigid a conceptual framework, and that their proposed alternative-the Organised Unitary Content Hypothesis-is not methodologically superior
Contrasting domains in the control of action: the routine and the non-routine
No full textThe Supervisory System model, in which there are two cognitive levels in the control action, is assessed. It is argued that there is a modulatory relation between the levels. It is further argued that standard connectionist variables, such as age of acquisition, familiarity, and frequency, are particularly useful for characterizing behavior produced by contention scheduling, the lower-level system, when Supervisory System function is impaired. By contrast, an analogy with symbolic Al models is used to theoretically motivate a fractionation of Supervisory System processing as created by a set of functionally selective and anatomically partially separable subsystems. It is argued that the systems for the Supervisory System's top-down selection of schemas in contention scheduling has a different lateralization of dorsolateral prefrontal cortex from the systems concerned with non-evident error detection and checking. The former are held to be the more left lateralized in comparison with the latter
The origin of confabulation
No full textSchnider and Ptak suggest that confabulation in amnesic patients results from their failure to suppress currently irrelevant information
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