Citation

Basso G, Nichelli P. Percept. Mot. Skills 1995; 81(3): 947-951.

Affiliation

Dip. di Patologia Neuropsicosensoriale, Università degli Studi di Modena, Italy. nichelli@imoax1.unimo.it

Copyright

(Copyright © 1995, SAGE Publishing)

DOI

unavailable

PMID

8668459

Abstract

This study explored whether preparing an arm movement influences detection of a visual stimulus. We cued subjects to respond with either a rightward or a leftward movement to the appearance of a stimulus located either in the centre, in the left, or in the right visual field. Programming a movement toward a lateral direction enhanced visual attention at that side. Rightward movements were associated with an attentional cost only for responses to a central location, while leftward movements slowed response latencies to both central and right-sided stimuli. We hypothesized that programming a rightward movement depends on the activation of intentional centers in either cerebral hemisphere. On the contrary, leftward movements might be only driven by the contralateral hemisphere.

Language: en