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Time-dependent mood fluctuations in Antarctic personnel: a meta-analysis


Hawkes, C and Norris, K, Time-dependent mood fluctuations in Antarctic personnel: a meta-analysis, Polar Record, 53, (5) pp. 534-549. ISSN 0032-2474 (2017) [Refereed Article]

Copyright Statement

Copyright 2017 Cambridge University Press

DOI: doi:10.1017/S003224741700050X


The third-quarter phenomenon is the dominant theoretical model to explain the psychological impacts of deployment in Antarctica on personnel. It posits that detrimental symptoms to functioning, such as negative mood, increase gradually throughout deployment and peak at the third-quarter point, regardless of overall deployment length. However, there is equivocal support for the model. The current meta-analysis included data from 21 studies (involving 1,826 participants) measuring negative mood during deployment to elucidate this discrepancy. Across studies analyses were conducted on three data types: stratified by month using repeated-measured all time points metaanalytic techniques and pre/post-deployment data for summer/winter deployment seasons. Our results did not support the proposed parameters of the third-quarter phenomenon, as negative mood did not peak at the third-quarter point (August/September) of deployment. Overall effect sizes indicated that negative mood was greater at baseline than the end of deployment for summer and winter deployment seasons. These findings have theoretical and practical implications and should be used to guide future research, assisting in the development and modification of pre-existing prevention and intervention programmes to improve well-being and functioning of personnel during Antarctic deployment.

Item Details

Item Type:Refereed Article
Keywords:Antarctica, extreme environments, health, human behaviour, psychology
Research Division:Psychology
Research Group:Clinical and health psychology
Research Field:Health psychology
Objective Division:Health
Objective Group:Public health (excl. specific population health)
Objective Field:Mental health
UTAS Author:Hawkes, C (Ms Clare Hawkes)
UTAS Author:Norris, K (Professor Kimberley Norris)
ID Code:121922
Year Published:2017
Web of Science® Times Cited:6
Deposited By:Psychology
Deposited On:2017-10-20
Last Modified:2018-07-26

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