Summary: We report a quantitative investigation of the visual identification and auditory comprehension deficits of 4 patients who had made a partial recovery from herpes simplex encephalitis. Clinical observations had suggested the selective impairment and selective preservation of certain categories of visual stimuli. In all 4 patients a significant discrepancy between their ability to identify inanimate objects and inability to identify living things and foods was demonstrated. In 2 patients it was possible to compare visual and verbal modalities and the same pattern of dissociation was observed in both. For 1 patient, comprehension of abstract words was significantly superior to comprehension of concrete words. Consistency of responses was recorded within a modality in contrast to a much lesser degree of consistency between modalities. We interpret our findings in terms of category specificity in the organization of meaning systems that are also modality specific semantic systems.
Category specific semantic impairments / Warrington, Ek; Shallice, Timothy. - In: BRAIN. - ISSN 0006-8950. - 107:3(1984), pp. 829-853.
|Titolo:||Category specific semantic impairments|
|Autori:||Warrington, Ek; Shallice, Timothy|
|Data di pubblicazione:||1984|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1093/brain/107.3.829|
|Appare nelle tipologie:||1.1 Journal article|