Letter | Published:

Prism After-effects: Identical Results for Visual Targets and Unexposed Limb

Naturevolume 212pages104105 (1966) | Download Citation



IN the past few years attention has been directed again to the phenomenon of adaptation to prismatic displacement which was mentioned by Helmholtz1. Recently, change in the “felt” position of the adapted limb has been used as an explanatory concept2. It is useful to think of this as a change in the transfer function of the output of joint receptors which signal limb position3.

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  1. 1

    Helmholtz, H. von, Treatise on Physiological Optics, 3 (Dover Publications, 1962).

  2. 2

    Harris, C. S., Science, 140, 812 (1963).

  3. 3

    Craske, B., Nature, 210, 764 (1966).

  4. 4

    Efstathiou, A., Bauer, J., Greene, M., and Held, R., J. Exp. Psychol. (in the press).

  5. 5

    Hamilton, C. R., Amer. J. Psychol., 77, 457 (1964).

  6. 6

    Kalil, R. E., and Freedman, S. J., Perc. Mot. Skills, 22, 135 (1966).

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    • B. CRASKE

    Present address: Department of Psychology, University of Southampton,


  1. Department of Psychology, University of Durham

    • B. CRASKE
    •  & S. J. GREGG


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