A study on the effect of stimulation of amygdaloid comples on the electrical response of audifory cortex of rabbits
Yang Li, Feng Maozi, Zhou Suaoci
Brain Function Research Lalxratory, East China Normal University. Shanghai 200062, China
Abstract
Experiments were performed on 40 adult rabbits immobilized with Flaxedil. The
effect of stimulation of amygdaloid complex on the click evoked potential of Woolsey's AI,AII and the auditory cortex behind the rhinal sulcus(ACBRS) was examined by single unit analysis. The results showed that stimulation of lateral nucleus and basal nucleus of amygdala could induce either a facilitory or an inhibitory effect on the evoked potential and the unit doscharges. The latency of the inhibitory effect was about 10-25ms,and lasted for 20-115ms. A facilitory effect with a latency as short as 2ms was also observed in one animal. The experimental results indicate that the effect of amygdaloid complex stimulation as transmitted through polysynaptic circuite while the facilitatory effect was monosynaptie. The functional significance of the amygdaloid ef feet was discussed.
Key words: Amygdala;Inhibitory effect;Facilitory effect;Auditory response;Cortical anditory cen ter
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Citing This Article:
Yang Li, Feng Maozi, Zhou Suaoci. A study on the effect of stimulation of amygdaloid comples on the electrical response of audifory cortex of rabbits. Acta Physiol Sin 1993; 45 (1): (in Chinese with English abstract).