Spatial, not temporal cues drive predictive orienting movements during navigationa virtual reality study
作者:
Renato Grasso,
Yuri Ivanenko,
Joseph McIntyre,
Isabelle Viaud-Delmon,
Alain Berthoz,
期刊:
NeuroReport
(OVID Available online 2000)
卷期:
Volume 11,
issue 4
页码: 775-778
ISSN:0959-4965
年代: 2000
出版商: OVID
关键词: Anticipation;Humans;Locomotion;Spatial orientation
数据来源: OVID
摘要:
A fundamental property of the human brain is the ability to make predictions of future sensory and motor events. We have recently found that steering manoeuvres when walking along curvilinear trajectories are controlled by an anticipatory guidance of the direction of head (and eyes). However it is unclear whether a time-related or space-related signal triggers such anticipatory head orienting movements. By simulating navigation along a multi-legged virtual corridor we show that anticipatory orienting movements are triggered (in standing subjects) by reaching specific locations rather than by the time to the approaching corridor's bend. Similar to what happens in car driving, specific spatial features of the route rather than time to collision seem to drive steering.
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