Galvanic skin response in photosensitive children.

Investigations of galvanic skin response under stress by different stimuli were carried out in 65 photosensitive and 70 non-photosensitive subjects aged 11--17 years. Photosensitive individuals at the age of 12--15 years showed a more pronounced skin reaction than non-photosensitive ones. The emotional reagibility (expressed by IE = (SEE TEXT), Traxel 1960, Stocksmeier and Langosch 1973) shows significantly higher values than in nonphotosensitive children. In addition to this, photosensitive subjects demonstrate a delayed habituation. Together with further results (Gross-Selbeck et al. 1976) the findings indicate that photosensitivity is not the isolated symptom of a genetically determined increased cerebral excitability, which can represent a factor in the pathogenesis of epilepsy for instance, but must be understood as a special characteristic of a particular constitution.