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. 2017 Feb 15;7:42726. doi: 10.1038/srep42726

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Copyright © 2017, The Author(s)

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(Panel a) – Sample eye movement traces of optokinetic nystagmus pre exercise (top traces) and post exercise (bottom traces) in response to 10° · s⁻¹ (left traces) and 5° · s⁻¹ (right traces) stimulus speeds. (Panel b) – Mean amplitude of OKN quick phases pre and post exercise categories with placebo. Each symbol represents one participant, while the shape of the symbol corresponds to one stimulus velocity: 5° · s⁻¹ (circle) and 10° · s⁻¹ (square). The diagonal unity line represents no difference between pre exercise and post exercise. (Panel c) – Mean peak velocity of OKN quick phases in placebo and caffeine.