EFFECTS OF CUEING ON VISUOSPATIAL PROCESSING IN UNILATERAL SPATIAL NEGLECT

Patients with typical left unilateral spatial neglect bisected lines a fter cueing to the left endpoint, the fixation point being monitored w ith an eye camera. They persisted with the point of initial fixation m ade after cueing and placed the mark there without searching leftwards again. The rightward shift of fixation to the initial point of fixati on thus determined the location of the subjective midpoint. We conside r that rightward attentional bias in creased the amplitude of this shi ft that was planned on the basis of the perception of the whole line w hile cueing. This hypothesis may explain smaller but obvious rightward bisection errors found in the cueing condition.