A case with decreased spontaneity caused by vascular dementia after intra-cerebellar hemorrhage, treated by transcranial direct current stimulation effectively.

Abstract

We administered transcranial direct current stimulation (tDCS) to the patient with frontal lobe dysfunction due to Cerebellar cognitive affective syndrome（CCAS）caused by hemorrhage of left cerebellar vermis together with rehabilitation. We set up the device as follows: First, anode was placed on the frontal pole (Fpz) and cathode was on the left motor area (C3). The stimulation of weak current was applied for 2weeks (10 times) and then elactrodes position changed. Anode was on the left dorsolateral prefrontal cortex (F3) and cathode was on the right forehead, and the stimulation was applied again. With the data we could be obtained from the analysis of electro encephalogram (EEG), we calculated Asymmetry Index (AI) of Normalized Power Spectrum (NPS) at the place of F3 and F4 by using Neuronal Activity Topography (NAT). After the stimulation, marked improvement of his spontaneity was observed and the AI showed a tendency to approximate to the normal group’s. In this case, AI was redressed by anodal stimulation for frontal lobe which connect with cerebellum, and his spontaneity was improved.