Adaptivity of receptive fields of neurons in the posterotemporal cortex and their sensitivity to parameters of light stimulation in cats

1. We have found that the overwhelming majority of the receptive fields investigated do not vary as regards their level of visual adaptation: reorganizations of the receptive fields, associated with a change in the adaptation of the visual system, were observed in only 12% of visually activated neurons. 2. We have demonstrated that there is a considerable weakening of the responses to light stimulation on increase in the level of luminence in 75% of neurons showing adaptive reorganizations. 3. We have demonstrated that the neurons investigated do not vary significantly with the length and orientation of the light band moving through their receptive fields in 60% of cases.