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本工作观察了猴(Macacamulatta)在执行延缓go/no-go行为作业时的展核神经元电活动、在记录到的231个行为作业相关的尾核单位中,有179个被监别为与某些认知功能有关。这些尾核单位的大多数在暗示信号(ECS—unit,n=31)或反应触发信号(ETS—unit,n=72)出现之前呈现逐渐增强的放电活动,并持续到相应的信号出现。这类尾核单位的活动可能参与选择性注意过程,也可能参与一种期待(随后的事件)或准备(随后的反应)状态的形成。另一类尾核单位的活动在延缓用间持续增强(ADP-unit,n=52),并且这种持续增强的活动与随后的反应正确与否相联系,可能在暂时保持信息的工作记忆过程中起着重要作用。此外,本研究中坯观察到一类与行为作业的多个成分相关的尾核单位活动(MT-unit,n=24),这类单位活动可能反映了信息在尾核内的会聚和处理过程。因此,本研究的结果为尾核参与注意和期待,尤其是信息的暂时保持等复杂的认知功能提供了进一步的实验证据。
In this study, we observed the electrical activity of nucleus pulposus neurons of Macaca mulatta in performing delayed go / no-go behavioral tasks. Seventy-one (231) nucleus accumbens associated with homework were recorded as Some cognitive functions. Most of these caudate nucleus units exhibit a progressive increase in discharge activity prior to the appearance of the hint signal (ECS-unit, n = 31) or the response trigger signal (ETS-unit, n = 72), and continue until the corresponding signal appears. The activity of such cauda-nucleus units may be involved in the process of selective attention, or may be involved in the formation of a state of anticipation (subsequent events) or preparation (subsequent reactions). The activity of the other caudate nucleus units continued to increase between delayed use (ADP-unit, n = 52), and this continuing enhancement of activity correlates with the correct subsequent response, possibly in the working memory process Plays an important role. In addition, one type of caudate nucleus unit activity (MT-unit, n = 24) associated with multiple components of a behavioral task was observed in this study. Such unit activity may reflect the convergence and processing of information within the caudal nucleus . Therefore, the results of this study provide further experimental evidence for the complex cognitive function of caudate nucleus involved in attention and expectation, especially for the temporary maintenance of information.