Sleep Spindles Characteristics in Insomnia Sufferers and Their Relationship with Sleep Misperception

Joint Authors

Normand, Marie-Pier
St-Hilaire, Patrick
Bastien, Célyne H.

Source

Neural Plasticity

Issue

Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2016-07-11

Country of Publication

Egypt

No. of Pages

10

Main Subjects

Biology
Medicine

Abstract EN

Cortical hyperarousal is higher in insomnia sufferers (INS) than in good sleepers (GS) and could be related to an alteration in sleep protection mechanisms, like reduced density or altered characteristics in sleep spindles.

The deficient sleep protection mechanisms might in turn enhance underestimation of sleep.

This study’s objective was to document sleep spindles characteristics in INS compared with GS and to investigate their potential role in sleep consolidation and misperception.

Seventeen individuals with paradoxical insomnia (PARA-I), 24 individuals with psychophysiological insomnia (PSY-I), and 29 GS completed four consecutive polysomnographic nights in laboratory.

Sleep spindles were detected automatically during stage 2 and SWS (3-4) on night 3.

Number, density, duration, frequency, and amplitude of sleep spindles were calculated.

A misperception index was used to determine the degree of discrepancy between subjective and objective total sleep times.

Kruskal-Wallis H tests and post hoc tests revealed that PARA-I had significantly shorter sleep spindles than GS but that PSY-I and GS did not differ on spindles length.

A standard multiple regression model revealed that neither sleep spindles characteristics nor objective sleep measures were predictive of sleep misperception.

A longer duration of spindles could reflect a higher gating process but this hypothesis still needs to be confirmed in replication studies.

American Psychological Association (APA)

Normand, Marie-Pier& St-Hilaire, Patrick& Bastien, Célyne H.. 2016. Sleep Spindles Characteristics in Insomnia Sufferers and Their Relationship with Sleep Misperception. Neural Plasticity،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1113226

Modern Language Association (MLA)

Normand, Marie-Pier…[et al.]. Sleep Spindles Characteristics in Insomnia Sufferers and Their Relationship with Sleep Misperception. Neural Plasticity No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1113226

American Medical Association (AMA)

Normand, Marie-Pier& St-Hilaire, Patrick& Bastien, Célyne H.. Sleep Spindles Characteristics in Insomnia Sufferers and Their Relationship with Sleep Misperception. Neural Plasticity. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1113226

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1113226