[Reflection of the process of conditioned reflex formation in shifts of the steady potential level].
In chronic experiments on rabbits with non-polarizable electrodes shifts of steady potential level (SPL) are recorded from the brain surface during extinction of the orienting reaction and formation of a conditioned defensive reflex. During each of these processes they have their typical parameters and are respectively denoted by the author as: orienting (appearing in response to a new stimulus), conditioned (to a signal atimulus), unconditioned (to an electro-cutaneous stimulus) and trace SPL shifts (developing after stimuli pairing). Trace shifts are the earliest SPL shifts originating as a result of pairing. They are manifested more regularly, than conditioned ones, considerably exceed them in amplitude, may differ from them in their sign and reach maximum values in a few seconds after the pairing. It has been assumed that formation of conditioned temporal connections depends above all on the appearance of a new kind of activity, resulting from pairings and reflected in the SPL trace shifts. This activity possibly constitutes the neurodynamic and metabolic processes underlying memory consolidation.
D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology*; D003214:Conditioning, Classical / Q000502:physiology*; D004594:Electrophysiology; D005108:Extinction, Psychological / Q000502:physiology; D008027:Light; D009949:Orientation / Q000502:physiology*; D011817:Rabbits
Otrazhenie protsessa formirovaniia uslovnogo refleksa v sdvigakh urovnia postoiannogo potentsiala