Huh. This is interesting: from your last two links, which seem to have the most info:
Increase of cortical excitability could be selected by anodal stimulation, and decrease by cathodal stimulation.
and
In general, cerebral excitability was diminished by cathodal stimulation, which hyperpolarises neurones. Anodal stimulation caused neuronal depolarisation, leading to an increase in excitability [....] However, in single cortical layers opposite effects were seen [...] underlining the fact that the effects of DC stimulation depend on the interaction of electric flow direction and neuronal geometry.
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
timeasmymeasure
no subject
Date: 2005-02-26 08:04 am (UTC)