Subjects
achromatopsia, neurological disorders
CHROMATOPSIA, COLOUR BLINDNESS, NEUROLOGICAL DISORDERS
In total, 162 subjects were included in the study (127 females, 35 males). Subjects were aged 18 to 39 years (mean ageBefore participation, all subjects gave written informed consent. Potential subjects were only included if they reported no diagnosed mental or neurological disorders in the past, no achromatopsia (colour blindness), no metallic implants or tattoos near electrode sites, consumed less than 10 cigarettes per day, sufficient German skills (minimum CEFR level B), and did not take part in any brain stimulation studies while enrolling in this study. Subjects were discharged from our study, and hence their data not used, if they missed a study visit. As compensation, money or course credits were provided with an additional bonus for the best 12 performers.