An hypothesis on information, memory and perception
1978
Abstract It is generally held that a sensory receptor serves, in some way to “map” an external event (such as a light or sound signal) onto some internal or neural event (such as a volley of impulses moving along an axon toward the brain). Or schematically external event→neural event It is postulated in this paper that it is not the external event, but rather uncertainty about the nature of the external event, which produces the neural activity. In place of the traditional map it is hypothesized that we should substitute rate of change of uncertainty about an external event→neural event It follows from this revised mapping process that one perceives only those external events about which he was initially uncertain. One cannot perceive something about which he is perfectly certain. It is seen that various observed sensory phenomena, such as the process of adaptation and the fading of a fixed retinal image, issue directly from this new hypothesis.
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