Event Related Potentials in Language and Non-Language Tasks in Patients with Alexia without Agraphia
The concurrent study of behavior and event related potentials (ERPs) from different scalp locations can provide converging evidence for the brain structures and functions which underlie normal human cognitive processes. The study of behavior and ERPs in patients with localized brain damage that has resulted in specific behavioral deficits can, in theory, complement studies of normal subjects by: (1) describing changes in particular aspects of ERPs associated with disturbances in particular cognitive functions, and (2) permitting correlations between the absence or distortion of particular ERP components and damage to particular areas of the brain. Results from studies like these may provide information as to those aspects of cognitive functions that are reflected in particular ERP components and may also provide information as to the neural origins of different ERP components.
KeywordsVisual Field Line Drawing Occipital Cortex Left Visual Field Letter Word
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