Abstract
Previous studies demonstrated a leaning after-effect (LAE) following standing or walking on an inclined surface consistent with a long-lasting, somatosensory memory for body orientation relative to the surface. Here, we asked whether providing a brief visual reference during LAE resets postural orientation to the new visual reference. The results showed that subjects immediately return to upright when eyes were opened briefly during the post-incline period. However, the subjects also immediately resumed leaning after closing their eyes again following 20 s of eyes open. The duration of LAE was not influenced by 1 or 2 brief periods of vision. Also, the amplitude of the lean following the brief vision period was often larger than when subjects had their eyes closed for the entire post-incline period. These results suggest a powerful somatosensory memory contribution to postural orientation in space that is not eliminated or recalibrated with brief exposure to a visual reference.
Original language | English (US) |
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Pages (from-to) | 221-226 |
Number of pages | 6 |
Journal | Experimental Brain Research |
Volume | 203 |
Issue number | 1 |
DOIs | |
State | Published - May 2010 |
Keywords
- Adaptation
- Incline
- Leaning after-effects
- Posture
- Vision
ASJC Scopus subject areas
- General Neuroscience