2.1. Participants

A total of 26 adults (12 males and 14 females) with the age range from 20.25 to 27.64 (Mean = 22.25, SD = 1.90) were recruited from local educational institutions through campus flyers in Taipei city, Taiwan. All participants were right handed with no reported history of psychiatric or neurological disorders and had normal or corrected‐to‐normal vision. All of the study protocols were approved by the National Chengchi University Review Board. All participants were volunteers and were treated under the guidelines of declaration of Helsinki.