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  • Title: [Probability analysis of elements of rat behavior after sudden and signalled interruption of food reinforcement].
    Author: Belenkov NIu, Gracheva VV, Stepanov II.
    Journal: Zh Vyssh Nerv Deiat Im I P Pavlova; 1985; 35(3):473-9. PubMed ID: 4036323.
    Abstract:
    Probability analysis was carried out of the appearance of single elements of rats behaviour in the process of extinction of a conditioned alimentary motor reflex. The dynamics of effector behavioural components at a sudden cessation of reinforcement (usual schedule of extinction) was compared with cessation of reinforcement signalled by a previously differentiated signal and with reinforcement cessation preceded by a stimulus initially unknown to the animal. If the reinforcement cessation is signalled by a previously differentiated (negative) stimulus, in response to its action the animals "loose the aim", what is revealed in a rapid complete reduction of all elements of the goal-directed alimentary behaviour. Obviously differentiation signal actualises the memory trace of "nonreinforcement" which was formed in the previous negative experience of the animal; this is revealed in accelerated inhibition of the alimentary motor reflex under extinction.
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