Synaesthesia in the normal limb.
Identifieur interne : 000A80 ( Pmc/Corpus ); précédent : 000A79; suivant : 000A81Synaesthesia in the normal limb.
Auteurs : M. Mon-Williams ; J P Wann ; M. Jenkinson ; K. RushtonSource :
- Proceedings of the Royal Society B: Biological Sciences [ 0962-8452 ] ; 1997.
Abstract
We explored the degree to which vision may alter kinaesthetic perception by asking participants to view their hand through a prism, introducing different horizontal deviations, while trying to align their fingers above and below a thin table. When the visual image of one hand was displaced this overwhelmed kinaesthetic judgements and participants reliably reported that they felt their limbs were aligned, even when they were laterally mis-aligned by as much as 10 cm. This effect, however, was mediated by 'visual capture' and when the task was attempted in a darkened room with limb position indicated by an LED taped to the finger, kinaesthesis dominated and participants reported that the LED seemed to become detached from their finger tip. In both light and dark conditions the finger was clearly visible and only the background detail was extinguished. Hence, in perceiving limb position, it appears that we believe in what we see, rather than in what we feel, when the visual background is rich, and in what we feel when the visual background is sparse.
Url:
PubMed: 9263468
PubMed Central: 1688538
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