In a recent study published in The Journal of Neurophysiology, Ehrardt et al. report that moderate intensity (1 mA/25 cm²) transcranial direct current stimulation (tDCS) is optimal for improving performance on a stimulus-response matching task, as opposed to a lower 0.7 mA/25 cm² or higher 2 mA/25 cm² dose. This result suggests that behavioral effects of tDCS do not follow a linear dose-response curve. Potential neurobiological and neurocognitive implications of these findings as well as suggested directions for future research are discussed.

中文翻译：

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什么经颅直流电刺激强度最适合认知增强？

在最近发表在《神经生理学杂志》上的一项研究中，Ehrardt 等人。报告称，中等强度 (1 mA/25 cm ² ) 经颅直流电刺激 (tDCS) 是提高刺激响应匹配任务性能的最佳选择，而不是较低的 0.7 mA/25 cm ²或更高的 2 mA/25 cm ²剂。该结果表明 tDCS 的行为影响不遵循线性剂量反应曲线。讨论了这些发现的潜在神经生物学和神经认知影响以及未来研究的建议方向。