Activation of the Field CAI of the Hippocampus by Septal Stimulation
Tóm tắt
A
In rabbits under urethane‐chloralose anesthesia the existence of a septo‐hippocampal projection has been verified by the evoked potential method. Its origin is the magnocellular medial septal nucleus. These septo‐fugal fibres activate the basal parts of the apical dendrites and/or the soma of the CAI neurons, probably by a mono‐synaptic route. By repetitive stimulation and by strychnine the depolarized area of the CAI neurons may increase, by anoxia it may decrease. Thus, according to the excitability level, a smaller or greater part of the apical dendrites may initiate spikes of an all‐or‐none character.
Từ khóa
Tài liệu tham khảo
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