How does drinking water affect attention and memory? The effect of mouth rinsing and mouth drying on children's performance

Edmonds, C.J., Harte, N. and Gardner, M. 2018. How does drinking water affect attention and memory? The effect of mouth rinsing and mouth drying on children's performance. Physiology & Behavior. 194, pp. 233-238. doi:10.1016/j.physbeh.2018.06.004

TitleHow does drinking water affect attention and memory? The effect of mouth rinsing and mouth drying on children's performance
AuthorsEdmonds, C.J., Harte, N. and Gardner, M.
Abstract

There is general consensus that drinking water facilitates certain cognitive processes. However, it is not yet known what mechanism underlies the effect of drinking on performance and these may be different for different cognitive processes. We sought to elucidate the mechanisms involved by establishing at what stage of the drinking process cognitive performance is influenced. We examined the effect of mouth rinsing and mouth drying on subjective thirst and mood, visual attention and short term memory in children. Data are reported from 24 children aged 9- to 10-years. Children’s performance was assessed in three conditions - mouth drying, mouth rinsing and a control (no intervention). In each condition they were assessed twice - at baseline, before intervention, and 20 minutes later at test. Mouth rinsing improved visual attention performance, but not short term memory, mood or subjective thirst. The effects of mouth drying were more equivocal. The selective nature of the results is consistent with suggestions that different domains of cognition are influenced by different mechanisms.

Keywordswater; cognition; drinking; performance; mood; thirst
JournalPhysiology & Behavior
Journal citation194, pp. 233-238
ISSN0031-9384
Year2018
PublisherElsevier
Digital Object Identifier (DOI)doi:10.1016/j.physbeh.2018.06.004
Publication dates
Published07 Jun 2018
Published in print01 Oct 2018
LicenseCC BY-NC-ND 4.0

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