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The influence of social evaluation on cerebral cortical activity and motor performance: A study of “Real-Life” competition
Authors:Bradley D Hatfield  Michelle E Costanzo  Ronald N Goodman  Li-Chuan Lo  Hyuk Oh  Jeremy C Rietschel  Mark Saffer  Trent Bradberry  Jose Contreras-Vidal  Amy Haufler
Institution:1. Department of Kinesiology, University of Maryland at College Park, School of Public Health, USA;2. Neuroscience and Cognitive Sciences Program, University of Maryland at College Park, USA;3. Graduate Program in Bioengineering, University of Maryland at College Park, USA
Abstract:Motor performance in a social evaluative environment was examined in participants (N = 19) who completed a pistol shooting task under both performance-alone (PA) and competitive (C) conditions. Electroencephalographic (EEG), autonomic, and psychoendocrine activity were recorded in addition to kinematic measures of the aiming behavior. State anxiety, heart rate, and cortisol were modestly elevated during C and accompanied by relative desynchrony of high-alpha power, increased cortico-cortical communication between motor and non-motor regions, and degradation of the fluency of aiming trajectory, but maintenance of performance outcome (i.e., score). The findings reveal that performance in a complex social-evaluative environment characterized by competition results in elevated cortical activity beyond that essentially required for motor performance that translated as less efficient motor behavior.
Keywords:Competition  Human performance  EEG  Social evaluation
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