Abstract

1. Two forms of dynamics of the responses to nonvisual stimuli and their complexes with light were discovered: rapid and slow. In 57% of the cells, unidirectional changes in the rapid and slow dynamics of the response were not observed. 2. About 37% of all the cells investigated showed a different orientation of the dynamics of the discharge in their responses to sound and ECS or showed dynamics of discharge to only one type of stimulus. This may testify to a modal specificity of the responses of the cells to different nonvisual stimuli. 3. The most widespread dynamics of the response to nonvisual stimuli and their complexes with light was habituation. However, complete dying away of the response to sound was observed in only 64% of the cells with dynamics of the response, while habituation to ECS was observed in 36% of the neurons. The remaining cells with dynamics of the response showed either sensitization of the discharge or its partial habituation.

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