Ego depletion, attentional control, and decision making in sport

•The quality of athletes' decisions has been found to determine their performance.•We examined the effect of ego depletion on decision making in basketball.•We found that ego depletion impaired basketball players' decision making ability.•The availability of sufficient self-control resources benefits decision making in sport.

ObjectivesAthletes differ at staying focused on performance and avoiding distraction. Drawing on the strength model of self-control we investigated whether athletes do not only differ inter-individually in their disposition of staying focused and avoiding distraction but also intra-individually in their situational availability of focused attention.Design/methodIn the present experiment we hypothesized that basketball players (N = 40) who have sufficient self-control resources will perform relatively better on a computer based decision making task under distraction conditions compared to a group who's self-control resources have been depleted in a prior task requiring self-control.ResultsThe results are in line with the strength model of self-control by demonstrating that an athlete's capability to focus attention relies on the situational availability of self-control strength.ConclusionsThe current results indicate that having sufficient self-control strength in interference rich sport settings is likely to be beneficial for decision making.