Elena Nixon

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In light of descriptive accounts of attenuating effects of physical activity on tics, we used an experimental design to assess the impact of an acute bout of aerobic exercise on tic expression in young people (N = 18) with Tourette Syndrome (TS). We compared video-based tic frequency estimates obtained during an exercise session with tic rates obtained(More)
This paper consists of an exploratory look at a tic time series formed by observing the start time of tics for subjects with Tourette’s Syndrome during various activities. It is concluded that the mean waiting time between tics is increased by physical activity and that subsequent waiting times appear independent of each other within these activities.(More)
Previous research demonstrates that our apparent mental flexibility depends largely on the strength of our prior intention; changing our intention in advance enables a smooth transition from one task to another (e.g., Astle DE, Jackson GM, Swainson R. J Cogn Neurosci 20: 255-267, 2008; Duncan J, Emslie H, Williams P, Johnson R, Freer C. Cogn Psychol 30:(More)
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