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Sleep deprivation impairs and caffeine enhances my performance, but not always our performance: how acting in a group can change the effects of impairments and enhancements

Faber, Nadira S., Häusser, Jan A., Kerr, Norbert L. (2015) Sleep deprivation impairs and caffeine enhances my performance, but not always our performance: how acting in a group can change the effects of impairments and enhancements. Personality and Social Psychology Review, 21 (1). pp. 3-28. ISSN 1088-8683. (doi:10.1177/1088868315609487) (KAR id:58826)

Abstract

What effects do factors that impair or enhance performance in individuals have when these individuals act in groups? We provide a framework, called the GIE ("Effects of Grouping on Impairments and Enhancements”) framework, for investigating this question. As prominent examples for individual-level impairments and enhancements, we discuss sleep deprivation and caffeine. Based on previous research, we derive hypotheses on how they influence performance in groups, specifically process gains and losses in motivation, individual capability, and coordination. We conclude that the effect an impairment or enhancement has on individual-level performance is not necessarily mirrored in group performance: grouping can help or hurt. We provide recommendations on how to estimate empirically the effects individual-level performance impairments and enhancements have in groups. By comparing sleep deprivation to stress and caffeine to pharmacological cognitive enhancement, we illustrate that we cannot readily generalize from group results on one impairment or enhancement to another, even if they have similar effects on individual-level performance.

Item Type: Article
DOI/Identification number: 10.1177/1088868315609487
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Divisions: Divisions > Division of Human and Social Sciences > School of Psychology
Depositing User: Gary Samson
Date Deposited: 21 Nov 2016 13:54 UTC
Last Modified: 16 Feb 2021 13:39 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/58826 (The current URI for this page, for reference purposes)

University of Kent Author Information

Kerr, Norbert L..

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