Poster A120, Saturday, March 24, 1:30–3:30 pm, Exhibit Hall C
Separate Components of Attentional Bias to Reward Relate to Individual Differences in Impulsivity
Kristin Meyer1, Nelly Topa1, Cheyenne Bricken1, Margaret Sheridan1, Joe Hopfinger1; 1University of North Carolina at Chapel Hill
A growing body of research shows that reward-related distractors disrupt attentional control. Impulsivity, a construct linked with a broad range of psychopathology, is related to both heightened reward response and reduced cognitive control. However, findings regarding the relationship between attentional bias to reward and impulsivity have been mixed. This may be because most attentional bias paradigms do not parse apart key components of spatial attention: capture and disengagement. To address this gap, healthy adults completed a two phase attention task and the Barratt Impulsivity Scale (BIS-11). First, a colored circle stimulus was associated with monetary reward. Second, attentional bias to reward was assessed using a modified Posner cuing paradigm in which the non-predictive cues were either previously rewarded, previously trained-unrewarded, or neutral stimuli. Participants were significantly faster to respond to a target following a previously rewarded cue, demonstrating facilitated attentional capture to rewarding stimuli. Additionally, participants were significantly slower to disengage from a previously rewarded stimulus, as demonstrated by slowed reaction time when the target appeared in a location opposite the previously rewarded cue. These results are not due to training alone, as the trained-unrewarded stimuli showed no effect. Furthermore, these effects were strongly correlated with impulsivity as measured by the BIS-11. Whereas capture by reward history is more closely linked with motor and attention impulsivity, disengagement from previously rewarded stimuli predicts non-planning impulsivity. This study provides new evidence that the degree to which attention is captured and subsequently held by rewarding stimuli is linked with distinct components of impulsivity.
Topic Area: ATTENTION: Spatial