Spontaneous eyeblink rate as a predictor of dopamine: Individual differences across previous collision sport history

<div> <div> <div> <div> <ul> <li> <p>Humans and animals identify, pursue and achieve rewards and learn from rewarded experiences through a reward system </p> </li> <li> <p>The mesolimbic reward system is responsible for a number of psychological mechanisms including hedonic response to reward and incentive salience or colloquially liking and wanting </p> </li> <li> <p>Eye-blink rate is a reliable proxy for dopaminergic functioning (Taylor et al., 1999) </p> </li> <li> <p>Altered dysfunction has been detected in a number of clinical populations, including schizophrenia (Chen, Lam, Chen, & Nguyen, 1996), and Parkinson’s disease (Deuschl & Goddemeier, 1998) </p> </li> <li> <p>Individuals with concussions display a number of behavioral and functional brain changes suggestive of dopaminergic dysfunction </p> </li> <li> <p>Here we investigate the use of a low-cost eyetracker to evaluate eyeblink rate as a proxy for dopamine functioning </p> </li> </ul> </div> </div> </div> </div>