What Transcranial Direct Current Stimulation Intensity Is Best for Cognitive Enhancement?
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.
PMID: 33406005 [PubMed – as supplied by publisher]
J Neurophysiol. 2021 Jan 06;:
Authors: Smucny J