%0 Journal Article
%T Psychogenic Pseudo-responses in an Electrical Cortical Stimulation
%A Hime SUZUKI
%A Nobuhiro MIKUNI
%A Rei ENATSU
%A Rintaro YOKOYAMA
%A Satoko OCHI
%A Tomoaki TAMADA
%A Yuto SUZUKI
%J Archive of "Neurologia medico-chirurgica".
%D 2019
%R 10.2176/nmc.tn.2018-0321
%X An electrical cortical stimulation provides important information for functional brain mapping. However, subjective responses (i.e. sensory, visual, and auditory symptoms) are purely detected by patients¡¯ descriptions, and may be affected by patients¡¯ awareness and intelligence levels. We experienced psychogenic responses in the electrical cortical stimulation of two patients with intractable epilepsy. A sham stimulation was useful for differentiating pseudo-responses from real responses in the electrical cortical stimulation. Inductive questions, long testing durations, and clear cues of stimulation onsets need to be avoided to prevent psychogenic pseudo-responses in the electrical cortical stimulation. Furthermore, a sham stimulation is applicable for detecting pseudo-responses the moment patients show atypical or inexplicable symptoms
%K electrical stimulation
%K functional mapping
%K psychogenic responses
%K sham stimulation
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6635144/