title: Working memory capacity can be improved by expressive writing: a randomized experiment in a Japanese sample.
abstract: This study examined the influence of expressive writing on working memory capacity (WMC), a component of executive function. Japanese undergraduates (N=104) were individually tested across six separate experimental sessions (baseline, three writing, and two follow-up sessions at 1 and 5 weeks). Participants were randomly assigned to write about a traumatic experience, their best possible future selves (BPS), or a trivial topic for 20 minutes. WMC tests were completed at baseline and follow-ups. Results indicate that expressive writing about traumatic experience can improve WMC at 5 weeks after writing, but that writing about BPS or trivial topics has no effect on WMC.
authors.affiliation: Department of Psychology, Doshisha University, Kyoto, Japan. myogo@mail.doshisha.ac.jp
authors.forename: Masao
authors.initials: M
authors.lastname: Yogo
authors.forename: Shuji
authors.initials: S
authors.lastname: Fujihara
mesh_terms: D000293:Adolescent; D000328:Adult; D003071:Cognition; D019260:Expressed Emotion; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007564:Japan; D008016:Life Change Events; D008297:Male; D008570:Memory, Short-Term; D033262:Narration; D011795:Surveys and Questionnaires; D014956:Writing