title: The better the story, the bigger the serving: narrative transportation increases snacking during screen time in a randomized trial.
abstract: BACKGROUND
  Watching television and playing video games increase energy intake, likely due to distraction from satiety cues. A study comparing one hour of watching TV, playing typical video games, or playing motion-controlled video games found a difference across groups in energy intake, but the reasons for this difference are not clear. As a secondary analysis, we investigated several types of distraction to determine potential psychosocial mechanisms which may account for greater energy intake observed during sedentary screen time as compared to motion-controlled video gaming.
  
  
  METHODS
  Feelings of enjoyment, engagement (mental immersion), spatial presence (the feeling of being in the game), and transportation (immersion in a narrative) were investigated in 120 young adults aged 18 - 35 (60 female).
  
  
  RESULTS
  Only narrative transportation was associated with total caloric intake (ρ = .205, P = .025). Transportation was also higher in the TV group than in the gaming groups (P = .002) and higher in males than in females (P = .003). Transportation mediated the relationship between motion-controlled gaming (as compared to TV watching) and square root transformed energy intake (indirect effect = -1.34, 95% confidence interval -3.57, -0.13). No other distraction-related variables were associated with intake.
  
  
  CONCLUSIONS
  These results suggest that different forms of distraction may differentially affect eating behavior during screen time, and that narrative appears to be a particularly strong distractor. Future studies should further investigate the effects of narrative on eating behavior.
authors.affiliation: Department of Nutrition, Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. ellyons@utmb.edu
authors.forename: Elizabeth J
authors.initials: EJ
authors.lastname: Lyons
authors.forename: Deborah F
authors.initials: DF
authors.lastname: Tate
authors.forename: Dianne S
authors.initials: DS
authors.lastname: Ward
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D000328:Adult; D001288:Attention; D004032:Diet; D002149:Energy Intake; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D033262:Narration; D012528:Satiety Response; D012737:Sex Factors; D062410:Snacks; D013690:Television; D014186:Transportation; D018910:Video Games / Q000523:psychology*; D055815:Young Adult