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伴随负变化(Contingent Negative Variation,CNV)是与心理精神因素关系较为密切的一种脑诱发电位(Brain Evoked Potential,BEP),主要用于各种心理现象及精神科的研究。CNV究竟是哪一种心理精神活动所产生,目前仍不清楚,但它与高级精神活动有关这一结论却已得到肯
Continuing Negative Variation (CNV) is a brain evoked potential (BEP) that has a close relationship with mental and psychiatric factors. It is mainly used in various psychological phenomena and psychiatric studies. It is still not clear what kind of psycho-mental activity the CNV is generated from, but its conclusion related to advanced mental activity has been confirmed.