Hemispheric transfer and dyslexia: testing the deficit hypothesis for word and symmetry recognition using visual half-field tasks.

ABSTRACT:

Background

The interhemispheric transfer deficit theory proposes that individuals with dyslexia have impaired interhemispheric transfer, particularly affecting the integration of visual information from the left and right visual fields. This study aimed to evaluate this hypothesis by examining interhemispheric transfer in dyslexia using visual half-field tasks targeting both linguistic and visuospatial processing.

Methods

We examined interhemispheric transfer in dyslexia using two visual half-field tasks: a lexical decision task to assess written word processing, and a symmetry decision task to examine visuospatial processing. We compared reaction times and accuracy in 90 Dutch-speaking participants (45 with dyslexia, 45 controls) across left, right, and bilateral stimulus p

SUBMITTER: Meijer Z 

PROVIDER: S-EPMC12924301 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature