Neural gain changes subserving perceptual acuity |
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Authors: | LARRY JONES PR BURGESS |
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Institution: | BURGESS
Department of Physiology, University of Utah School of Medicine, 410 Chipeta Way, Research Park, Salt Lake City, UT 84108, USA |
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Abstract: | When small and large objects of equal weight are lifted, the small object feels heavier than the large one (the size-weight illusion) and requires more effort to lift (the size-effort illusion). It has been suggested that these illusions result from neural gain changes designed to maintain acuity under different working conditions. If this suggestion is correct, a given mass should produce a larger increase in perceived weight or effort when added to the small object. This was found to be the case. |
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Keywords: | Heaviness Effort Size-weight Illusion Size-effort Illusion Perceptual Rescaling |
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