Long-term depression in hippocampus

被引:470
作者
Bear, MF
Abraham, WC
机构
[1] BROWN UNIV,HOWARD HUGHES MED INST,PROVIDENCE,RI 02912
[2] UNIV OTAGO,DEPT PSYCHOL,DUNEDIN,NEW ZEALAND
[3] UNIV OTAGO,NEUROSCI RES CTR,DUNEDIN,NEW ZEALAND
关键词
long-term potentiation; synaptic plasticity; learning and memory; calcium;
D O I
10.1146/annurev.ne.19.030196.002253
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Long-term depression (LTD) is a lasting decrease in synaptic effectiveness that follows some types of electrical stimulation in the hippocampus. Two broad types of LTD may be distinguished. Heterosynaptic LTD can occur at synapses that are inactive, normally during high-frequency stimulation of a converging synaptic input. Homosynaptic LTD can occur at synapses that are activated, normally at low frequencies. Here we discuss the mechanisms of LTD and their possible relevance to hippocampal function.
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页码:437 / 462
页数:26
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