We also recruited 23 typical adult males as control participants (mean age ± standard deviation, 31.5 ± 11.5; Full-Scale IQ, 121.4 ± 14.3), who had no history of any psychiatric condition and who were recruited from the community. The groups were matched on handedness. All participants completed a measure of intelligence and had normal or adjusted to normal vision. Everyone who took part gave written informed consent, and the study was approved by the Cambridge Psychology Research Ethics Committee. The research was carried out in compliance with the Helsinki Declaration.