Belyĭ V P, Likhacheva L V
Zh Vyssh Nerv Deiat Im I P Pavlova. 1986 Jul-Aug;36(4):665-70.
In experiments on rabbits with electrodes chronically implanted in the lateral hypothalamus, dynamics was studied of extinction of self-stimulation reaction as a result of cancellation of intracerebral reinforcement. General dynamics of extinction of the unreinforced instrumental actions and behavioural manifestations of orienting-investigating reaction were revealed. It was found, that in 30% of rabbits, the orienting reaction appearing as a result of "discordance" between expected and actual afferentation is attended by a species-specific form of behaviour, expressed in the form of hind paws synergic strokes against the floor. It is suggested that these strokes may be a somatic expression of a negative emotional state of animals during self-stimulation extinction. The comparison of extinction dynamics with the level of self-stimulation background frequency showed a relative independence of the strength of drive towards getting positive emotions on motivational effects created by electric stimulation of the reinforcing brain structures.
在对长期将电极植入外侧下丘脑的兔子进行的实验中，研究了由于脑内强化取消而导致的自我刺激反应消退的动态过程。揭示了未强化的工具性动作消退的一般动态以及定向探究反应的行为表现。发现，在30%的兔子中，由于预期与实际传入信息之间的“不一致”而出现的定向反应伴随着一种特定物种的行为形式，表现为后爪协同敲击地面。有人认为，这些敲击可能是动物在自我刺激消退过程中负面情绪状态的躯体表现。将消退动态与自我刺激背景频率水平进行比较表明，在由强化脑结构的电刺激产生的动机效应上，获得积极情绪的驱力强度具有相对独立性。
