title: Mood, stop-rules and task persistence: no mood-as-input effects in the context of pain.
abstract: OBJECTIVE
  Task persistence despite experiencing pain might be a risk factor for development and maintenance of chronic pain. The Mood-as-Input (MAI) model predicts that the impact of mood on individuals' motivation to persist in a task depends on the interpretation of current mood within a certain motivational context. The aim of the current study was to replicate the original MAI study (Martin, Ward, Achee, & Wyer, 1993), but in a context where the task is painful.
  
  
  METHODS
  A 2 Mood (negative versus positive) × 2 Stop-Rule (achievement versus hedonic) between-subjects factorial design was used in which 120 healthy participants (97 women, mean age = 21.78 years, SD = 3.07) performed an impression-formation task while being exposed to mechanically induced pressure pain.
  
  
  RESULTS
  The MAI interaction hypothesis was not confirmed. Instead, participants showed more task persistence when they used hedonic stop-rules as a ground to decide on task (dis)continuation than when they used an achievement-oriented stop-rule. Additionally, participants reporting less pain-related fear also spent more time on the painful impression-formation task. The current findings suggest that the MAI perspective might not apply to task persistence behavior in a pain context.
  
  
  CONCLUSIONS
  These findings may not generalize to task performance in patients with chronic pain.
authors.affiliation: Department of Clinical Psychological Science, Research Group Behavioral Medicine, Maastricht University, P.O. Box 616, 6200 MD Maastricht, The Netherlands. Ken.Ceulemans@maastrichtuniversity.nl
authors.forename: Ken
authors.initials: K
authors.lastname: Ceulemans
authors.forename: Petra A
authors.initials: PA
authors.lastname: Karsdorp
authors.forename: Johan W S
authors.initials: JW
authors.lastname: Vlaeyen
mesh_terms: D000339:Affect; D003627:Data Interpretation, Statistical; D005239:Fear / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008960:Models, Psychological; D009042:Motivation / Q000502:physiology; D010146:Pain / Q000523:psychology*; D010812:Physical Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D012307:Risk Factors; D055815:Young Adult
keywords: Fear of pain; Mood; Mood-as-Input; Pain; Stop-rules; Task persistence