Author Correction: Lack of acclimatization to chronic hypoxia in humans in the Antarctica

Porcelli, Simone; Marzorati, Mauro; Healey, Beth; Terraneo, Laura; Vezzoli, Alessandra; Bella, Silvia Della; Dicasillati, Roberto; Samaja, Michele

doi:10.1038/s41598-018-24804-2

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“…Quadratic time-based models demonstrated the greatest effect sizes, suggesting that when the conditions are harshest, resources are more depleted and participants were less involved in any form of coping and reported less PA. Also subjective sleep quality showed a negative trend over time, a result consistent with other research ( Bhargava et al, 2000 ; Pattyn et al, 2018 ) although at the end of the stay the average score did increase slightly. While chronic hypoxia might lead to deterioration in sleep quality in high altitude ( Collet et al, 2015 ), the effect of hypoxia on adaptation among residents on Concordia has been shown to persist over time ( Porcelli et al, 2018 ). Thus, we argue that hypoxia cannot explain seasonal variations in sleep quality observed in this study.…”

Section: Discussionmentioning

confidence: 99%

Psychological Hibernation in Antarctica

Sandal

Vijver

Smith³

2018

Front. Psychol.

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Human activity in Antarctica has increased sharply in recent years. In particular during the winter months, people are exposed to long periods of isolation and confinement and an extreme physical environment that poses risks to health, well-being and performance. The present study aimed to gain a better understanding of processes contributing to psychological resilience in this context. Specifically, the study examined how the use of coping strategies changed over time, and the extent to which changes coincided with alterations in mood and sleep. Two crews (N = 27) spending approximately 10 months at the Concordia station completed the Utrecht Coping List, the Positive and Negative Affect Schedule (PANAS), and a structured sleep diary at regular intervals (x 9). The results showed that several variables reached a minimum value during the midwinter period, which corresponded to the third quarter of the expedition. The effect was particularly noticeable for coping strategies (i.e., active problem solving, palliative reactions, avoidance, and comforting cognitions). The pattern of results could indicate that participants during Antarctic over-wintering enter a state of psychological hibernation as a stress coping mechanism.

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