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Open AccessArticle

Experimental Investigation of the Time Course Effects of Acute Exercise on False Episodic Memory

Exercise Psychology Laboratory, Physical Activity Epidemiology Laboratory, Department of Health, Exercise Science and Recreation Management, 229 Turner Center, School of Applied Sciences, The University of Mississippi, Oxford, MS 38677, USA
Author to whom correspondence should be addressed.
J. Clin. Med. 2018, 7(7), 157;
Received: 27 May 2018 / Revised: 16 June 2018 / Accepted: 20 June 2018 / Published: 21 June 2018
(This article belongs to the Special Issue The Effects of Exercise on Cognitive Function)
Previous experimental work suggests that acute exercise may positively influence the accurate recall of past episodic events. However, few studies have examined whether acute exercise also reduces the number of false episodic memories. We evaluated this paradigm in conjunction with an examination of the temporal effects of acute exercise, which have previously been shown to play an important role in subserving episodic memory function. Twenty young adults participated in three experimental visits, including a non-exercise control visit, a visit involving an acute bout (20 min) of moderate-intensity exercise occurring prior to the memory task, and a visit involving an acute bout of exercise occurring during the encoding of the memory task. All visits were counterbalanced and occurred at least 24 h apart. The Deese–Roediger–McDermott (DRM) Paradigm, involving a separate word list trial for each visit, was employed to assess accurate and false episodic memory recall. For each visit, a short-term (immediate recall) and a long-term (25-min delay) memory recall was assessed. For both time points, the visit that involved exercise prior to encoding resulted in better short-term and long-term memory function (F(2) = 11.56, p < 0.001, η2p = 0.38). For both time points, the control visit resulted in a greater number of false memories. These findings suggest that acute moderate-intensity exercise may help to increase the accurate recall of past episodic memories and may help to reduce the rate of false memories. View Full-Text
Keywords: confabulation; exercise; memory; physical activity confabulation; exercise; memory; physical activity
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Siddiqui, A.; Loprinzi, P.D. Experimental Investigation of the Time Course Effects of Acute Exercise on False Episodic Memory. J. Clin. Med. 2018, 7, 157.

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