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Fig. 1 | Translational Neurodegeneration

Fig. 1

From: Modulating arousal to overcome gait impairments in Parkinson’s disease: how the noradrenergic system may act as a double-edged sword

Fig. 1

The relationship between arousal and task performance, related to the effects of compensatory strategies targeting arousal. Based on Yerkes and Dodson [25]. (a) Suboptimal state of arousal. In the case of suboptimal arousal, a person with Parkinson’s disease (PD) would likely benefit from applying a compensation strategy that aims to increase the level of arousal (e.g., by adding an element of time pressure), in order to optimize task performance. (b) Optimal state of arousal. In the case of optimal arousal, optimal task performance is expected. (c) Supraoptimal state of arousal. In the case of supraoptimal arousal, a person with PD would likely benefit from applying a compensation strategy that aims to reduce the level of arousal (e.g., by employing relaxation techniques), in order to optimize task performance

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