From single errors to negative psychological momentum in youth basketball: post-error mechanisms and coach-mediated resetting.

Errors in youth basketball are often treated as isolated technical events; however, their psychological effects may persist across subsequent possessions. This Mini Review integrates evidence on psychological momentum, post-error affect, attentional control, efficacy-related beliefs, social evaluation, and coach feedback to explain how a single error may develop into repeated performance failure. A focused narrative search prioritized evidence from youth basketball, followed by basketball in general, youth team sports, and broader sport psychology when direct evidence was limited. The review proposes a self-reinforcing error-emotion-attention-efficacy-error cycle, in which an initial error may leave residual negative affect, shift attention toward self-focused or evaluative information, reduce perceived efficacy and control, and impair subsequent decision-making or execution. In youth athletes, coach and peer evaluation and fear of failure may amplify this process by increasing the social evaluative meaning of errors. Conversely, supportive and task-focused coach feedback may facilitate emotional resetting, attentional refocusing, and efficacy restoration, whereas controlling feedback may prolong negative momentum. The complete pathway remains an integrative hypothesis rather than an established causal model. Future possession-level research is needed to test these mechanisms directly in youth basketball.