The presence of a perseverative iterative style in poor vs. good sleepers

Barclay, Nicola L. and Gregory, Alice M.. 2010. The presence of a perseverative iterative style in poor vs. good sleepers. Journal of Behavior Therapy and Experimental Psychiatry, 41(1), pp. 18-23. ISSN 00057916 [Article]

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Abstract or Description

Catastrophizing is present in worriers and poor sleepers. This study investigates whether poor sleepers possess a ‘perseverative iterative style’ which predisposes them to catastrophize any topic, regardless of content or affective valence, a style previously found to occur more commonly in worriers as compared to others. Poor (n = 23) and good sleepers (n = 37) were distinguished using the Pittsburgh Sleep Quality Index (PSQI), from a sample of adults in the general population. Participants were required to catastrophize 2 topics: worries about sleep, and a current personal worry; and to iterate the positive aspects of a hypothetical topic. Poor sleepers catastrophized/iterated more steps to a greater extent than good sleepers to these three interviews, (F(1, 58) = 7.35, p < .05). However, after controlling for anxiety and worry, this effect was reduced to non-significance for the ‘sleep’ and ‘worry’ topics, suggesting that anxiety may mediate some of the association between catastrophizing and sleep. However there was still a tendency for poor sleepers to iterate more steps to the ‘hypothetical’ topic, after controlling for anxiety and worry, which also suggests that poor sleepers possess a cognitive style which may predispose them to continue iterating consecutive steps to open-ended tasks regardless of anxiety and worry. Future research should examine whether the presence of this cognitive style is significant in leading to or maintaining insomnia.

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Date Deposited:

15 Mar 2011 15:07

Last Modified:

29 Apr 2020 15:49

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Yes, this version has been peer-reviewed.


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