Mechanisms underlying experience-dependent potentiation and depression of vibrissae responses in barrel cortex

被引：23
作者：
Fox, K
Glazewski, S
Chen, CM
Silva, A
Li, X
机构：
[1] WASHINGTON UNIV,SCH MED,DEPT NEUROL,ST LOUIS,MO 63110
[2] COLD SPRING HARBOR LAB,COLD SPRING HARBOR,NY 11724
[3] UNIV MINNESOTA,DEPT CELL BIOL & NEUROANAT,MINNEAPOLIS,MN 55455
来源：
JOURNAL OF PHYSIOLOGY-PARIS | 1996年 / 90卷 / 3-4期
关键词：
sensory deprivation; barrel field; somatosensory cortex; alpha CaMKII; critical period; long-term potentiation; long-term depression; adult plasticity;
D O I：
10.1016/S0928-4257(97)81436-2
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
Plasticity was studied in the barrel cortex of mrs and mice. Vibrissae deprivation in adult and adolescent animals caused changes in the response properties of cortical neurons to stimulation of spared and deprived vibrissae, Plasticity involved both potentiation of spared vibrissae responses and depression of deprived vibrissae responses in layer II/III of the cortex. Vibrissae response potentiation was found to require alpha CaMKII in adult cortex. Vibrissae response depression was not found to occur in adult cortex but was found in adolescent animals for the principal vibrissa. Preliminary results suggested that vibrissae response depression exhibits both hetero- and homosynaptic components.
引用
收藏
页码：263 / 269
页数：7
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