“Contingent Negative Variation” in Rhesus Monkeys: An EEG Sign of a Specific Mental Process
“Contingent Negative Variation” in Rhesus Monkeys: An EEG Sign of a Specific Mental Process
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恒河猴的“偶然负变异”：特定心理过程的脑电图标志
DOI：
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发表时间：
1966
期刊：
影响因子：
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通讯作者：
P. Kellaway
中科院分区：
文献类型：
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作者：
M. Low;R. Borda;P. Kellaway
利用长时间恒定脑电图记录技术、磁带存储技术和电子平均技术，对3只恒河猴的“偶然负变异”或“期望波”现象进行了研究。实验采用三种基本条件反射范式：有警告提示的逃避条件反射、SD后有厌恶强化的辨别任务和有食欲强化的辨别任务。试验以12个为一组，用Enhancetron电子平均仪在线平均。在习得实验中，表面负慢电位仅在SD诱发反应之后和有意义刺激之前逐渐发展。未强化的刺激之后没有变化。在灭绝试验期间，这种转变逐渐减弱。在歧视逆转过程中，先前未强化的刺激产生负向偏移，而SD后的偏移逐渐减弱。结果表明，在这些猴子中出现了“偶然的负变异”，并支持了这种转变是集中期间脑电活动的结果的论点。
Utilizing long time-constant EEG recording techniques, magnetic tape storage, and electronic averaging, the phenomenon designated the “contingent negative variation” or “expectancy wave” was studied in 3 Rhesus monkeys. Three basic conditioning paradigms were used: escape conditioning with a warning cue, discrimination task with aversive reinforcement following SD, and discrimination with appetitive reinforcement. Trials were presented in blocks of 12 and averaged on line with an Enhancetron electronic averager. In each case, during acquisition trials, a surface negative slow potential gradually developed only following the evoked response to SD and preceding the meaningful stimulus. No shift followed the unreinforced stimulus. During extinction trials, the shift gradually diminished. During discrimination reversal, a negative shift developed following the previously unreinforced stimulus, while the shift following what had been SD gradually diminished. Results demonstrate the appearance of the “contingent negative variation” in these monkeys and support the contention that this shift is a result of cerebral electrical activity during conation.