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Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study

The possibility of distinguishing insomniacs from good sleepers based on polysomnography (PSG) remains an open question. While these groups show modest differences in traditional PSG parameters, some studies suggest that finer measures may be more useful. Here we assess differences between good slee...

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Autores principales: Conte, Francesca, Malloggi, Serena, De Rosa, Oreste, Di Iorio, Ilaria, Romano, Federica, Giganti, Fiorenza, Ficca, Gianluca
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9859102/
https://www.ncbi.nlm.nih.gov/pubmed/36673991
http://dx.doi.org/10.3390/ijerph20021240
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author Conte, Francesca
Malloggi, Serena
De Rosa, Oreste
Di Iorio, Ilaria
Romano, Federica
Giganti, Fiorenza
Ficca, Gianluca
author_facet Conte, Francesca
Malloggi, Serena
De Rosa, Oreste
Di Iorio, Ilaria
Romano, Federica
Giganti, Fiorenza
Ficca, Gianluca
author_sort Conte, Francesca
collection PubMed
description The possibility of distinguishing insomniacs from good sleepers based on polysomnography (PSG) remains an open question. While these groups show modest differences in traditional PSG parameters, some studies suggest that finer measures may be more useful. Here we assess differences between good sleepers (GS), poor sleepers (PS) and insomniacs (IN) in classical PSG measures as well as in sleep continuity, stability and cyclic organization. PSG-monitored sleep (two nights) of 17 IN (diagnosed through a standard clinical interview; Pittsburgh Sleep Quality Index (PSQI) ≥ 5, Insomnia Severity Index (ISI) > 14) was compared to that of 33 GS (PSQI < 5) and 20 PS (PSQI ≥ 5, ISI ≤ 14). Compared to GS, IN were impaired in sleep macrostructure (sleep latency, sleep efficiency, WASO%) and in continuity, stability and organization, whereas PS only showed disrupted continuity and stability. Spindle parameters were comparable between IN and GS, but the former displayed enhanced power in fast frequency bands. Our findings support the hypothesis of a continuum between individuals with self-reported poor sleep and insomniacs. Further, they add to extant data on impaired sleep continuity, stability and organization in poor sleepers and elderly individuals, underlining the utility of including these measures in standard sleep assessments.
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spelling pubmed-98591022023-01-21 Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study Conte, Francesca Malloggi, Serena De Rosa, Oreste Di Iorio, Ilaria Romano, Federica Giganti, Fiorenza Ficca, Gianluca Int J Environ Res Public Health Article The possibility of distinguishing insomniacs from good sleepers based on polysomnography (PSG) remains an open question. While these groups show modest differences in traditional PSG parameters, some studies suggest that finer measures may be more useful. Here we assess differences between good sleepers (GS), poor sleepers (PS) and insomniacs (IN) in classical PSG measures as well as in sleep continuity, stability and cyclic organization. PSG-monitored sleep (two nights) of 17 IN (diagnosed through a standard clinical interview; Pittsburgh Sleep Quality Index (PSQI) ≥ 5, Insomnia Severity Index (ISI) > 14) was compared to that of 33 GS (PSQI < 5) and 20 PS (PSQI ≥ 5, ISI ≤ 14). Compared to GS, IN were impaired in sleep macrostructure (sleep latency, sleep efficiency, WASO%) and in continuity, stability and organization, whereas PS only showed disrupted continuity and stability. Spindle parameters were comparable between IN and GS, but the former displayed enhanced power in fast frequency bands. Our findings support the hypothesis of a continuum between individuals with self-reported poor sleep and insomniacs. Further, they add to extant data on impaired sleep continuity, stability and organization in poor sleepers and elderly individuals, underlining the utility of including these measures in standard sleep assessments. MDPI 2023-01-10 /pmc/articles/PMC9859102/ /pubmed/36673991 http://dx.doi.org/10.3390/ijerph20021240 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Conte, Francesca
Malloggi, Serena
De Rosa, Oreste
Di Iorio, Ilaria
Romano, Federica
Giganti, Fiorenza
Ficca, Gianluca
Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study
title Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study
title_full Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study
title_fullStr Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study
title_full_unstemmed Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study
title_short Sleep Continuity, Stability and Cyclic Organization Are Impaired in Insomniacs: A Case–Control Study
title_sort sleep continuity, stability and cyclic organization are impaired in insomniacs: a case–control study
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9859102/
https://www.ncbi.nlm.nih.gov/pubmed/36673991
http://dx.doi.org/10.3390/ijerph20021240
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