Vocal-manual trade-offs in hemispheric sharing of human performance control.
Experiment 1 established the linear ordering of performance and rated difficulty of three finger-sequencing tasks. Experiment 2 embedded these tasks within a dual-task paradigm employing vocalization of words and nonwords as concurrent activities. Concurrent vocal activity interfered with right-more than with left handed performance, and this lateralized interference effect increased monotonically with increased sequence difficulty. Results are discussed in terms of hemispheric sharing of dual task performance control.
Hicks
R E
RE
Department of Psychology, State University of New York at Albany, NY 12222, USA.
Bradshaw
G J
GJ
Kinsbourne
M
M