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Physical exercise improves long-term memory no less than transcranial direct current stimulation

Javadi, Amir-Homayoun, Ifram, Fadi (2016) Physical exercise improves long-term memory no less than transcranial direct current stimulation. In: 6th International Conference on Transcranial Brain Stimulation 2016, 7 – 10 September 2016, Göttingen, Germany. (KAR id:56659)

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Question – It has been shown that electrical brain stimulation, in particular transcranial direct current stimulation (tDCS), can improve memory performance. Physical exercise has also been shown to be able to improve different aspects of cognition. The aim of this study was to investigate which of these methods is more effective in improvement of long-term memory. Those tDCS and physical exercise protocols were chosen that have been shown to be effective in improvement of long-term memory: tDCS during memorisation (targeting encoding phase) and physical exercise after memorisation (targeting consolidation phase). We expected to see improvement following application of both methods. No prediction was made on which method is more effective.

Results – Both physical exercise and active stimulation led to significant improvement of long-term memory performance compared to sham stimulation (paired sample t-test p < 0.01 and p < 0.05, respectively). Physical exercise, however, led to stronger improvement (cohen’s d effect size physical exercise > active tDCS).

Conclusions – These results show that only 30 minutes of physical exercise can significantly improve long-term memory performance. Furthermore, this duration of physical exercise during consolidation was more effective than 15 minutes of tDCS during encoding. Considering that tentatively physical exercise lead to less adverse side effects as compared to electrical brain stimulation, physical exercise can be considered potentially a more effective method of cognitive enhancement, in particular in healthy participants.

Item Type: Conference or workshop item (Poster)
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Faculties > Social Sciences > School of Psychology > Cognitive Psychology
Depositing User: Amir-Homayoun Javadi
Date Deposited: 27 Jul 2016 11:31 UTC
Last Modified: 29 May 2019 17:40 UTC
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