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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Reward-dependent plasticity in the primary auditory cortex of adult monkeys trained to discriminate temporally modulated signals
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Reward-dependent plasticity in the primary auditory cortex of adult monkeys trained to discriminate temporally modulated signals

机译：成年猴子初级听觉皮层中与奖励有关的可塑性，经过训练可以区分时间调制信号

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摘要

Adult owl monkeys were trained to detect an increase in the envelope frequency of a sinusoidally modulated 1-kHz tone. Detection was positively correlated with the magnitude of the change in the envelope frequency. Surprisingly, neuronal responses recorded in the primary auditory cortex of trained monkeys were globally suppressed by the modulated tone. However, the contrast in neuronal responsiveness to small increases versus large increases in envelope frequencies was actually enhanced in the trained animals. The results suggest behaviorally contingent inhibitory and excitatory processes that are modulated by the probability that a particular signal predicts a reward. [References: 49]
机译：训练成年猫头鹰猴以检测正弦调制的1 kHz音调的包络频率增加。检测与包络频率变化的幅度呈正相关。出人意料的是，训练过的猴子的初级听觉皮层中记录的神经元反应被调制的音调整体抑制。但是，在经过训练的动物中，神经元对包膜频率小幅增加与大幅度增加的反应性反差实际上得到了增强。结果表明，行为特有的抑制性过程和兴奋性过程受特定信号预测奖励的概率的调节。 [参考：49]

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