Human mood and cognitive function after different extreme cold exposure

Sun, Boyang; Wu, Jiansong; Hu, Zhuqiang; Wang, Ruotong; Gao, Fei; Hu, Xiaofeng

doi:10.1016/j.ergon.2022.103336

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…A confounding variable for testing RT in the cold is the well‐documented decrease in manual dexterity (Castellani & Tipton, 2016 ), which can occur with both local temperature changes to forearm and hand temperature (Castellani et al., 2018 ; Giesbrecht et al., 1995 ; Sun et al., 2022 ) as well as with reductions in core temperature (Cheung et al., 2007 ; Giesbrecht et al., 1995 ). For computerized cognitive assessments, the hands and fingers are required to respond and therefore can directly influence RT and errors made.…”

Section: Discussionmentioning

confidence: 99%

“…Collectively, these changes can lead to decrements in cognitive task performance in ambient air ≤10°C (Falla et al., 2021 ; Hancock et al., 2007 ; Pilcher et al., 2002 ). Specific decrements have been reported to include impaired executive function (Racinais et al., 2017 ), working memory (Shurtleff et al., 1994 ; Thomas et al., 1989 ), attention/vigilance (Sun et al., 2022 ; Watkins et al., 2014 ), and psychomotor processing (Teichner, 1958 ) with acute (30–120 min) passive cold air (range: −15 to 10°C) exposure.…”

Section: Introductionmentioning

confidence: 99%

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Effects of skin and mild core cooling on cognitive function in cold air in men

Wallace,

Gagnon,

Hartley

et al. 2023

Physiological Reports

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This study tested the effects of skin and core cooling on cognitive function in 0°C cold air. Ten males completed a randomized, repeated measures study consisting of four environmental conditions: (i) 30 min of exposure to 22°C thermoneutral air (TN), (ii) 15 min to 0°C cold air which cooled skin temperature to ~27°C (CS), (iii) 0°C cold air exposure causing mild core cooling of ∆‐0.3°C from baseline (C‐0.3°C) and (iv) 0°C cold air exposure causing mild core cooling of ∆‐0.8°C from baseline (C‐0.8°C). Cognitive function (reaction time [ms] and errors made [#]) were tested using a simple reaction test, a two–six item working memory capacity task, and vertical flanker task to assess executive function. There were no condition effects (all p > 0.05) for number of errors made on any task. There were no significant differences in reaction time relative to TN for the vertical flanker and item working memory capacity task. However, simple reaction time was slower in C‐0.3°C (297 ± 33 ms) and C‐0.8°C (296 ± 41 ms) compared to CS (267 ± 26 ms) but not TN (274 ± 38). Despite small changes in simple reaction time (~30 ms), executive function and working memory was maintained in 0°C cold air with up to ∆‐0.8°C reduction in core temperature.

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