HIPPOCAMPAL ACTIVITY, OLFACTION, AND SNIFFING - AN OLFACTORY INPUT TO THE DENTATE GYRUS

被引：96

作者：

VANDERWOLF, CH

机构：

[1] Department of Psychology, University of Western Ontario, London, Ont.

来源：

BRAIN RESEARCH | 1992年 / 593卷 / 02期

关键词：

DENTATE GYRUS; HIPPOCAMPUS; MOTOR ACTIVITY; OLFACTION; RESPIRATION; RHYTHMICAL SLOW ACTIVITY;

D O I：

10.1016/0006-8993(92)91308-2

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Experiments in freely moving rats showed that olfactory stimuli elicit a burst of rhythmical 15-30 Hz waves in or near the hilus of the dentate gyrus but not in adjacent regions of CA1. This fast wave burst is not elicited by visual, auditory, or somatosensory inputs and is not related to motor activity. Electrical stimulation of the olfactory bulb evokes a complex potential in the hilus of the dentate gyrus but not in adjacent regions of CA1. Experiments making use of wave-triggered averaging demonstrated that there is a degree of phase-locking between (a) hippocampal RSA and sniffing or other respiratory patterns, (b) hippocampal RSA and the initiation of jumping, and (c) respiration and the initiation of jumping. An early hypothesis that the hippocampus and dentate gyrus are part of an olfacto-motor mechanism may merit re-examination.

引用

页码：197 / 208

页数：12

共 56 条

[41] DISYNAPTIC OLFACTORY INPUT TO THE HIPPOCAMPUS MEDIATED BY STELLATE CELLS IN THE ENTORHINAL CORTEX [J].