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首页> 外文期刊>Journal of cognitive enhancement >No Effect of Transcranial Direct-Current Stimulation to Dorsolateral Prefrontal Cortex on Naturalistic Prospective Memory in Healthy Young and Older Adults
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No Effect of Transcranial Direct-Current Stimulation to Dorsolateral Prefrontal Cortex on Naturalistic Prospective Memory in Healthy Young and Older Adults

机译：在健康的年轻和老年人中，经颅直接刺激对背外侧前额叶皮层对自然主义的前瞻性记忆没有影响

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Transcranial direct current stimulation (tDCS), a form of non-invasive brain stimulation, has been shown to enhance working memory and multitasking abilities. Because of the substantial overlap in both cognitive processes (maintenance, monitoring) and neural substrates (dorsolateral prefrontal cortex, DLPFC) that support both working memory and prospective memory - the ability to remember to perform intended actions at appropriate moments in the future (taking medications, turning off appliances) - we tested whether tDCS would also enhance young and older adults' prospective memory. If tDCS enhances DLPFC activation, then it should benefit prospective memory performance, particularly for tasks that rely on controlled monitoring processes for prospective memory cue detection. Healthy young and older adults played the Virtual Week game while they received either a session of active tDCS to DLPFC and then, after at least 48 h, a session of placebo-controlled, sham stimulation, or vice versa. The Virtual Week game is a reliable measure of naturalistic prospective memory that includes assessments of five different types of prospective memory tasks that vary in cue-type (time vs. event) and task-regularity and, thus, the extent to which task performance should rely on controlled monitoring processes and DLPFC activation. Active tDCS had no effect on prospective memory performance relative to sham tDCS for either age group or any task type. In contrast, there were reliable practice effects across test sessions regardless of whether active tDCS was applied during the first or second session. A single session of tDCS to DLPFC did not enhance young or older adults' prospective memory performance, but practice did.
机译：经颅直流刺激（TDC）是一种非侵入性脑刺激的一种形式，已被证明可以增强工作记忆和多任务能力。由于认知过程（维护，监测）和神经底物（背外侧前额叶皮层，DLPFC）都有很大的重叠，既支持工作记忆和前瞻性记忆） - 能够记住将来在适当时刻执行预期动作的能力（服用药物（服用药物服用） ，关闭电器） - 我们测试了TDC是否还会增强年轻人和老年人的前瞻性记忆。如果TDCS增强了DLPFC激活，则应使前瞻性内存性能受益，尤其是对于依靠受控监视过程进行前瞻性内存提示检测的任务。健康的年轻人和老年人参加了虚拟周的比赛，而他们要么接受了DLPFC的主动TDC会议，然后在至少48小时后，安慰剂控制，假刺激，反之亦然。虚拟周游戏是对自然主义的前瞻性记忆的可靠度量，包括评估五种不同类型的预期记忆任务，这些任务在提示型（时间与事件）和任务指导性方面有所不同，因此，任务绩效应在多大程度上依靠受控的监视过程和DLPFC激活。主动TDC相对于任何年龄组或任何任务类型的假SHAM TDC对预期记忆的性能没有影响。相比之下，无论在第一届会议上是否应用主动TDC，在测试会话中都有可靠的实践效果。一次与DLPFC的TDC会议并没有增强年轻人或老年人的前瞻性记忆表现，但练习确实可以提高。

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