Personality and action control: BAS Reward predicts motor control accuracy

• Theoretically, approach motivation and action control should be linked.
• Approach motivation was assessed by the BAS scales.
• Action control was assessed using a joystick motor control task.
• People higher in BAS Reward exhibited better motor control in three studies.
• The findings support functional views of BAS Reward.

Theoretically, the processes involved in approach motivation and action control should overlap. In both cases, a person must commit to a goal, identify a goal target, and seek to reduce discrepancies between the self and this goal target on a somewhat continuous basis. These ideas motivated three studies (total N = 253) in which personality differences in the behavioral approach system (BAS) and the behavioral inhibition system (BIS) were assessed as potential predictors of performance in an objective motor control task. People high in BAS Reward had markedly better motor control (i.e., smaller distances from targets) than people low in BAS Reward. This was true across a variety of affective priming conditions. The other components of BAS and BIS, by contrast, were inconsistent predictors. The results support both reward-based and functional perspectives of the BAS in the context of a cybernetic view of how self-regulation by approach operates.