Dual-task interference in left-handed subjects: hemispheric specialization vs manual dominance.
Thirty-six left-handed subjects performed a dichotic listening task and two concurrent (verbal plus finger-tapping) tasks. Baseline tapping scores revealed both left- and right-hand dominance within left-handed subjects. Moreover when subjects were categorized as consistent or inconsistent for 'sidedness advantage' (e.g. consistent = same side for dominant hand and ear advantage), it was shown that the dual-task interference effects found on the concurrent tapping tasks were due to both hemispheric specialization and manual dominance.
Cherry
B
B
California State University, Fullerton.
Kee
D W
DW
D000328:Adult; D001288:Attention; D004007:Dichotic Listening Tests; D004292:Dominance, Cerebral; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D009048:Motor Skills; D009483:Neuropsychological Tests; D010700:Phonetics; D011340:Problem Solving; D013067:Speech Perception; D014705:Verbal Behavior