Electrophysiological evidence of lateralized disturbances in children with learning disabilities.

Abstract:

:This study used an electrophysiological measurement operation to investigate lateralized processing deficits associated with academic learning-disability subtypes. Fast frequency EEG activity in the 36-44 hertz (Hz) band was recorded from reading-disabled (RLD), arithmetic-disabled (ALD), and nondisabled control children engaged in verbal and nonverbal cognitive tasks. The control group, but neither LD group, exhibited a task-dependent shift in lateralization of 40 Hz EEG; the RLD subjects generated proportionately less left-hemisphere 40 Hz activity than control or ALD subjects during the verbal task; and the ALD subjects generated proportionately less right-hemisphere activity than control or RLD subjects during the nonverbal task. These results indicate that lateralized processing deficits are associated with different types of disabilities, and provide external validation of learning-disability classifications based on academic performance patterns.

authors

Mattson AJ,Sheer DE,Fletcher JM

doi

10.1080/01688639208402857

subject

Has Abstract

pub_date

1992-09-01 00:00:00

pages

707-16

issue

5

eissn

1380-3395

issn

1744-411X

journal_volume

14

pub_type

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