Effects of methylphenidate on language and creativity

INTERVENTION: Subjects will receive an oral capsule of methylphenidate or an identically over‐coated placebo. CONDITION: Methylphenidat, Memory ; ; PRIMARY OUTCOME: The primary objective of this study is to investigate the effects of methylphenidate on language processing and creativity, and the role of memory in such relations, through observing the effects of methylphenidate on sentence processing, creativity, and memory tasks. SECONDARY OUTCOME: The secondary objective is to establish the relations between the methylphenidate effects and baseline characteristics of individual subjects. INCLUSION CRITERIA: Healthy volunteers between 18 and 45 years old; Native Dutch speakers.