Exploring cerebral asymmetries for the verb generation task.
This study investigated potential right hemisphere involvement in the verb generation task. Six divided visual field experiments explored cerebral asymmetries for word retrieval in the verb generation task as well as in rhyme generation and immediate and delayed word pronunciation. The typical right visual field/left hemisphere (RVF/LH) advantage was observed for pronunciation and rhyme generation. For verb generation, the RVF/LH advantage was obtained only when stimulus items had a single prepotent response and not when there were multiple response alternatives. A semantic priming experiment suggested that activation for less common, related verbs was maintained for a longer time course within the right than within the left hemisphere. The authors suggest that the right hemisphere may play a role in continued activation of semantically related response alternatives in word generation and discuss methodological implications of their findings.
Chiarello
Christine
C
Department of Psychology, University of California, Riverside, Riverside, CA 92521, USA. christine.chiarello@ucr.edu
Kacinik
Natalie A
NA
Shears
Connie
C
Arambel
Stella R
SR
Halderman
Laura K
LK
Robinson
Cathy S
CS
D000328:Adult; D001143:Arousal / Q000502:physiology; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000503:physiopathology*; D004292:Dominance, Cerebral / Q000502:physiology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011939:Mental Recall / Q000502:physiology; D009483:Neuropsychological Tests; D010153:Paired-Associate Learning / Q000502:physiology; D010700:Phonetics; D017397:Prefrontal Cortex / Q000503:physiopathology; D011930:Reaction Time / Q000502:physiology; D012660:Semantics; D013068:Speech Production Measurement; D014706:Verbal Learning / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology