Neural subsystems for object knowledge.

摘要: CRITICAL issues in the cognitive neuroscience of language are whether there multiple systems for representation meaning, perhaps organized by processing system (such as vision or language1–6), and further subsystems distinguishable within these larger ones. We describe here a patient (K.R.) with cerebral damage whose pattern acquired deficits offers direct evidence major division between visually based language-based higher-level representations, language. K.R. could not name animals regardless type presentation (auditory visual), but had no difficulty naming other living things objects. When asked to verbally physical attributes (for example, 'what colour is an elephant?'), she was strikingly impaired. Nevertheless, distinguish correct when they were presented (she that correctly coloured from those not). Her knowledge animal properties completely intact, input stimulus. To explain this selective deficit, data mandate existence two distinct representations such normal individuals, one language-based. Furthermore, establish atrributes strictly segregated system.