Transcranial electrical stimulation (tES - tDCS; tRNS, tACS) methods

摘要

Weak transcranial direct current stimulation (tDCS) with a homogenous DC field at intensities of around 1Â mA induces long-lasting changes in the brain. tDCS can be used to manipulate brain excitability via membrane polarisation: cathodal stimulation hyperpolarises, while anodal stimulation depolarises the resting membrane potential, whereby the induced after-effects depend on polarity, duration and intensity of the stimulation. A variety of other parameters influence tDCS effects; co-application of neuropharmacologically active drugs may most impressively prolong or even reverse stimulation effects. Transcranial alternating stimulation (tACS) and random noise stimulation (tRNS) are used to interfere with ongoing neuronal oscillations and also finally produce neuroplastic effects if applied with appropriate parameters.View full textDownload full textKeywordsTranscranial direct current stimulation (tDCS), Transcranial alternating current stimulation (tACS), Transcranial random noise stimulation (tRNS), Transcranial magnetic stimulation (TMS), Rehabilitation, PlasticityRelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.1080/09602011.2011.557292