PROTOCEREBRAL CIRCADIAN PACEMAKERS IN CRAYFISH - EVIDENCE FOR MUTUALLY COUPLED PACEMAKERS

被引：18

作者：

BARRERAMERA, B ^{[1
]}

BLOCK, GD ^{[1
]}

机构：

[1] UNIV VIRGINIA,DEPT BIOL,CHARLOTTESVILLE,VA 22901

来源：

BRAIN RESEARCH | 1990年 / 522卷 / 02期

关键词：

Circadian pacemaker; Cooling; Coupling; Crayfish; Electroretinogram; Photosensitivity; Protocerebrum; Symmetry;

D O I：

10.1016/0006-8993(90)91467-U

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Similar to intact crayfish, animals with an isolated protocerebrum-eyestalk complex, exhibit competent circadian rhythms in the electroretinogram (ERG). The ERG rhythms of the two eyes remain in phase after isolation of the protocerebrum but can be desynchronized after surgical bisection of the protocerebrum. The desynchrony of the two ERG rhythms reveals the existence of at least two circadian pacemakers in the eyestalk-protocerebrum complex. In addition, the fact that desynchrony of the ERG rhythms only occurs in bisected preparations suggests that pathways between the protocerebral lobes normally couple the two pacemakers. © 1990.

引用

页码：241 / 245

页数：5

共 19 条

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