15 male and 15 female subjects, matched for age and education level, participated and they performed the tasks twice (with and without exposure) with an interval of two weeks between the measurements (random order).
The test consisted of three different conditions: 1) response initiation: participants completed auditory presented sentences with a word clearly suggested by the context, 2) response inhibition: participants produced a word that made no sense in the context of an auditory-presented sentence from which the last word was missing, 3) baseline condition: subjects were asked to repeat the last word of the presented sentence.
|Exposure duration||not specified in the article|
P300 event-related potential amplitudes at 18 EEG electrodes were significantly lower in the "response inhibition" condition (second condition) than in the "response initiation" and "baseline" conditions. Within the "response inhibition" condition there was also a significant gender-exposure correlation effect manifested at 15 leads by decreased P300 event-related potential amplitudes of males and by increased amplitudes of females under exposure to of electromagnetic fields.
In conclusion, the data suggest that WiFi exposure may induce gender-related alterations in neural activity associated with the amount of attentional resources (P300 amplitude is thought to be sensitive to the amount of attentional resources engaged during the execution of a cognitive task).