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via ScienceDirect Publication: Psychological Bulletin on 1/20/11
Publication year: 2011Source: Psychological Bulletin, Volume 137, Issue 1, January 2011, Pages 1-18
Vincent A., Billock , Brian H., Tsou
G. T. Fechner (1860/1966) famously described two kinds of psychophysics: Outer psychophysics captures the black box relationship between sensory inputs and perceptual magnitudes, whereas inner psychophysics contains the neural transformations that Fechner's outer psychophysics elided. The relationship between the two has never been clear. Moreover, psychophysical power laws are found in almost every sensory system, yet the vast majority of neurons show sigmoid nonlinearities. Here, we selectively review the literatures on psychophysical and physiological nonlinearities and show how they can be placed within a framework for understanding the relationship between inner and outer psychophysics: a neural organization with a logical...
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