Differential EMG activity in subjects with muscle contraction headaches related to mental effort.
D000328:Adult; D004576:Electromyography; D005260:Female; D006261:Headache / Q000503:physiopathology* / Q000523:psychology; D006801:Humans; D008297:Male; D009119:Muscle Contraction; D013647:Task Performance and Analysis; D013850:Thinking