| Number | 287 |
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| Year | 1979 |
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| Drawer | 5 |
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| Entry Date | 06/03/1999 |
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| Authors | Lee, W. A., & Kelso, J. A. S. |
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| Publication | Journal of Human Movement Studies, 5, 171-181. |
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| Abstract | A passive limb position recognition task was used to examine two predictions based upon a neurophysiological model of slowly adapting (SA) joint receptors. First we hypothesized that durations at target position coinciding with dynamic (3,6 sec) and static (15,30 and 150 sec) phases of SA joint response should be associated with different accuracy levels favoring the longer durations. Second, because of the greater density of SA joint receptors sensitive to extreme positions, we predicted greater accuracy there than at intermediate limb positions. Results did not support either prediction about recognition accuracy. Errors for brief and long target durations were not statistically different. Increasing limb angles led to increased errors negating our second prediction. These data conflict with recent theorizing on the behavioral significance of joint receptors and indicated that knowledge of limb position is not readily predicted from joint receptor firing functions. |
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