Institute of Sports and Sports Sciences, Heidelberg University, Germany; Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Germany.
Conscious Cogn. 2013 Dec;22(4):1214-22. doi: 10.1016/j.concog.2013.08.005. Epub 2013 Sep 8.
Recent studies suggest that lucid dreaming (awareness of dreaming while dreaming) might be associated with increased brain activity over frontal regions during rapid eye movement (REM) sleep. By applying transcranial direct current stimulation (tDCS), we aimed to manipulate the activation of the dorsolateral prefrontal cortex (DLPFC) during REM sleep to increase dream lucidity. Nineteen participants spent three consecutive nights in a sleep laboratory. On the second and third nights they randomly received either 1 mA tDCS for 10 min or sham stimulation during each REM period starting with the second one. According to the participants' self-ratings, tDCS over the DLPFC during REM sleep increased lucidity in dreams. The effects, however, were not strong and found only in frequent lucid dreamers. While this indicates some preliminary support for the involvement of the DLPFC in lucid dreaming, further research, controlling for indirect effects of stimulation and including other brain regions, is needed.
最近的研究表明，清醒梦（在做梦时意识到自己在做梦）可能与快速眼动（REM）睡眠期间额叶区域的大脑活动增加有关。通过应用经颅直流电刺激（tDCS），我们旨在操纵 REM 睡眠期间背外侧前额叶皮层（DLPFC）的激活，以提高梦境的清晰度。19 名参与者在睡眠实验室连续三晚。在第二和第三晚，他们在 REM 期间的每个 REM 期（从第二期开始）随机接受 1 mA tDCS 刺激 10 分钟或假刺激。根据参与者的自我评分，DLPFC 在 REM 睡眠期间的 tDCS 增加了梦境的清晰度。然而，这些影响并不强烈，只在频繁的清醒梦者中发现。虽然这表明 DLPFC 参与清醒梦的初步支持，但需要进一步的研究，控制刺激的间接影响，并包括其他大脑区域。
