Abstract
The phenomenon of latent inhibition is used in studies of the processes of selective attention in the context of reinforcement training. The aim of the present work was to compare the ability of hypertensive ISIAH and normotensive parental-strain Wistar rats, which have different psychoemotional states, to ignore irrelevant stimuli. Latent inhibition was formed in conditions of passive and active avoidance reactions, whose acquisition was preceded by repeated presentation (pre-exposure) of stimuli without reinforcement. ISIAH rats showed impairment to latent inhibition in both behavioral tasks as compared with Wistar rats. These data provide grounds for suggesting that the deficit in selecting information in ISIAH rats is due to an innate weakness of the processes of internal inhibition in conditions of adaptation to anxiogenic stimuli.
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