THE DEPTH PROFILE OF ELECTRICALLY INDUCED TECTAL SUSTAINED POTENTIAL SHIFT RESPONSES IN THE GOLDFISH (CARASSIUS-AURATUS)

被引：2
|
作者：
NICOL, A [1 ]
SAVAGE, U [1 ]
LAMING, P [1 ]
机构：
[1] QUEENS UNIV BELFAST,SCH BIOL & BIOCHEM,CTR MED BIOL,DIV CELL & EXPTL BIOL,BELFAST BT9 7BL,ANTRIM,NORTH IRELAND
来源：
BEHAVIORAL AND NEURAL BIOLOGY | 1993年 / 59卷 / 02期
关键词：
D O I：
10.1016/0163-1047(93)90899-S
中图分类号：
B84 [心理学]; C [社会科学总论]; Q98 [人类学];
学科分类号：
03 ; 0303 ; 030303 ; 04 ; 0402 ;
摘要：
Tectal sustained potential shifts (SPSs) were recorded in response to electrical stimulation of the tectal surface in immobilized goldfish using saline-filled glass micro-electrodes. The peak amplitudes of surface recorded SPS responses were negative, this negativity declining with increasing tectal depth, reversing in polarity at a depth of ca. 350 μm and subsequently increasing in positivity. These opposing SPS polarities are attributed to field potentials generated by the source and sink of extracellular K+ ([K+]e) redistribution through a functional syncitium of radially connected glia. © 1993 Academic Press, Inc.
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页码：158 / 161
页数：4
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