Effects of Assistance to Response Movement on Learning a Choice Reaction Time Task in Rats
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- Sano Hiroto
- National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba University
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- Kaneko Hidekazu
- National Institute of Advanced Industrial Science and Technology (AIST)
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- Hasegawa Yasuhisa
- Tsukuba University
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- Tamura Hiroshi
- Osaka University
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- Suzuki Shinya S.
- National Institute of Advanced Industrial Science and Technology (AIST)
抄録
Proprioceptive sensory feedback provided by a motion assist device may facilitate neuronal plasticity which is known to play an important role in learning and rehabilitation. We investigated effects of sensory feedback timing on learning a sensory-motor association task. Rats were trained to respond to an air-puff stimulus on a forepaw by releasing the lever pressed with the stimulated forepaw (compatible condition) or with the non-stimulated forepaw (incompatible condition), i.e., a choice reaction time task. When the success rate exceeded 85%, the compatibility condition was changed (i.e., reversal learning). During training, an error trial was followed by a lever-activation trial where the correct lever (on which the forepaw was placed) was elevated automatically (which mimicked a correct lever-release response) at 120, 220, 320, or 420 ms after air-puff stimulation in four groups of rats. Such lever activation did not occur when the rat made a lever-release response before these preset timings. The control group received no lever-activation. Results indicate that learning speed was reduced significantly in the group that received lever-activation at 220 ms after air-puff stimulation. The finding suggests that the timing of movement-signal application is important in learning and thus should be considered in developing more efficient assist or rehabilitation devices.
収録刊行物
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- SCIS & ISIS
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SCIS & ISIS 2010 (0), 434-439, 2010
日本知能情報ファジィ学会
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詳細情報 詳細情報について
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- CRID
- 1390001205589966336
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- NII論文ID
- 130005019603
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可