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首页> 外文期刊>International journal of psychophysiology: official journal of the International Organization of Psychophysiology >Evidence for a close relationship between conscious effort and anterior cingulate cortex activity.
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Evidence for a close relationship between conscious effort and anterior cingulate cortex activity.

机译：有意识的努力和前扣带回皮层活动之间的密切关系的证据。

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摘要

The function of the anterior cingulate cortex (ACC) has been discussed in the last years in the context of conflict monitoring and error detection. In addition, ACC activity has been described in the context of "conscious effort". Recent neurophysiological and neuroimaging studies have described a negative correlation between ACC activity and reaction times in simple or choice reaction time experiments. One suggested explanation for this finding has been that there is a relationship between effort and ACC activity. The present ERP-LORETA study of healthy volunteers (n=35) was intended to directly investigate this relationship. In this experiment, three conditions were investigated: condition I was a choice reaction task with the instruction to stay relaxed during the task (relaxed condition), condition II was the same choice reaction task with the instruction to press the respective button as fast and correct as possible (effort condition). Condition III was just listening to the tones without button press (control condition). Subjects had to score directly after each experimental run on a visual analogue scale the amount of effort they have actually spent. The subjects showed significantly shorter reaction times during the high effort condition in comparison to the relaxed condition, as well as increased N1 amplitudes and increased ACC activity. In a subgroup analysis, this effect was present only in subjects who were (according to their self-ratings) following the instructions closely. These results provide direct evidence for a close relationship between conscious effort and ACC activity and suggest the usefulness of the applied effort-self-rating.
机译：近年来，在冲突监视和错误检测的背景下讨论了前扣带回皮质（ACC）的功能。另外，已经在“有意识的努力”的背景下描述了ACC活动。最近的神经生理学和神经影像学研究已经在简单或选择反应时间实验中描述了ACC活性和反应时间之间的负相关关系。对于这一发现的一种建议解释是，努力与ACC活动之间存在联系。当前对健康志愿者的ERP-LORETA研究（n = 35）旨在直接调查这种关系。在此实验中，研究了三种情况：条件I是选择反应任务，其指示在任务期间保持放松（放松状态），条件II是同一选择反应任务，其指示是快速正确地按下相应按钮尽可能（努力条件）。条件III只是在不按按钮的情况下听音（控制条件）。在每次实验运行后，受试者必须在视觉模拟量表上直接评分他们实际花费的精力。与放松状态相比，受试者在高强度状态下的反应时间明显缩短，并且N1振幅增加，ACC活性增加。在亚组分析中，仅在严格按照说明进行（根据他们的自我评价）的受试者中存在这种效果。这些结果为有意识的努力和ACC活动之间的紧密联系提供了直接的证据，并表明了应用努力－自我评价的有用性。

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