[The effect of the stimulation of "punishment areas" on the nonspecific nociceptive system of the thalamus in an enhanced period of rabbit development].
Effects of stimulation of areas of the negative reinforcement in hypothalamus and adjacent sites on the nociceptive evoked potentials (EP), recorded in the thalamic parafascicular complex to electrical skin stimulation of the hind paw in 30-40 days old rabbits were investigated. The stimulation of areas of the negative reinforcement in the anaesthetized animals resulted in the inhibition of the EP. Points, yielding the active-defense behaviour in the behavioural experiments, inhibited the EPs in the electrophysiological tests at the smaller current level (50-80%), than points, yielding the passive-defense behaviour (80-110%). On the contrary, the recovery period of the EP's parameters after the ceasing of the stimulation was shorter, if points were connected with the active-defense but not the passive-defense behaviour. The data obtained are considered in comparison with previous findings obtained in the investigation on the rabbits of the same age under the stimulation of areas of the positive reinforcement.
Butkevich
I P
IP
Kassil'
V G
VG
D000375:Aging / Q000502:physiology; D000818:Animals; D001362:Avoidance Learning / Q000502:physiology; D004558:Electric Stimulation / Q000379:methods; D005071:Evoked Potentials / Q000502:physiology; D009619:Nociceptors / Q000502:physiology*; D017288:Pain Threshold / Q000502:physiology; D011678:Punishment; D011817:Rabbits / Q000254:growth & development*; D012054:Reinforcement, Psychology; D013788:Thalamus / Q000502:physiology*
Vliianie stimuliatsii "zon nakazaniia" na nespetsificheskuiu notsitseptivnuiu sistemu talamusa v ékzal'tatsionnom periode razvitiia krolika.