Measuring individual vulnerability to sleep loss : the CHICa scale

2014
journal article
article
8
cris.lastimport.wos2024-04-09T23:37:23Z
dc.abstract.enThe aim of this project was to construct a psychometrically satisfying scale to describe subjective reactions to sleep deprivation. First, on the basis of a literature review, a list of items was generated which reflected the negatively affected mood and reduced wellbeing associated with sleep loss. Additionally, psychology students were asked to describe their cognitive and emotional symptoms following a night with curtailed sleep. As a result, 69 items were included in the experimental set. University students (n = 102, females, mean age 22.5 ± 1.9 years) completed the form several times during 1 week in June (while preparing for examinations) and on a free day in September; a total of 460 forms were collected. The final, 26-item version of the scale was validated in a sleep deficit experiment lasting 1 week, conducted with 25 female participants (mean age 23.4 ± 1.9 years). Factor analysis showed 71.7% of total variance explained by four components: impaired thermoregulation (C for cold), disrupted appetite (H for hunger), affective problems (I for irritability) and lowered level of cognitive functioning (Ca for cognitive attenuation). A Polish version of the CHICa scale showed satisfactory psychometric properties. Cronbach's alpha of the subscales were between 0.90 and 0.95. All four subscales exhibited a significant increase with an experimental 3-h daily sleep restriction over a period of 1 week; cognitive attenuation was the most symptomatic. Cognitive problems (reduced concentration, comprehension and accuracy) and a lack of energy seem to be the most specific subjective manifestations of the chronic sleep deficit state. CHICa may be helpful in research on inter-and intra-individual differences and on the efficacy of various counteractive treatments for the consequences of sleep deprivation.pl
dc.affiliationWydział Zarządzania i Komunikacji Społecznej : Instytut Psychologii Stosowanejpl
dc.affiliationPion Prorektora ds. badań naukowych i funduszy strukturalnych : Małopolskie Centrum Biotechnologiipl
dc.contributor.authorKontrymowicz-Ogińska, Halszka - 130256 pl
dc.contributor.authorMojsa-Kaja, Justyna - 160667 pl
dc.contributor.authorFąfrowicz, Magdalena - 127888 pl
dc.contributor.authorMarek, Tadeusz - 102084 pl
dc.date.accessioned2014-10-30T10:34:20Z
dc.date.available2014-10-30T10:34:20Z
dc.date.issued2014pl
dc.description.number3pl
dc.description.physical341-348pl
dc.description.publication0,4pl
dc.description.volume23pl
dc.identifier.doi10.1111/jsr.12115pl
dc.identifier.eissn1365-2869pl
dc.identifier.issn0962-1105pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/2207
dc.languageengpl
dc.language.containerengpl
dc.rights.licencebez licencji
dc.subject.enchronic sleep deprivationpl
dc.subject.enindividual differencespl
dc.subject.ensleep deficitpl
dc.subject.ensleep loss consequencespl
dc.subtypeArticlepl
dc.titleMeasuring individual vulnerability to sleep loss : the CHICa scalepl
dc.title.journalJournal of Sleep Researchpl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T23:37:23Z
dc.abstract.enpl
The aim of this project was to construct a psychometrically satisfying scale to describe subjective reactions to sleep deprivation. First, on the basis of a literature review, a list of items was generated which reflected the negatively affected mood and reduced wellbeing associated with sleep loss. Additionally, psychology students were asked to describe their cognitive and emotional symptoms following a night with curtailed sleep. As a result, 69 items were included in the experimental set. University students (n = 102, females, mean age 22.5 ± 1.9 years) completed the form several times during 1 week in June (while preparing for examinations) and on a free day in September; a total of 460 forms were collected. The final, 26-item version of the scale was validated in a sleep deficit experiment lasting 1 week, conducted with 25 female participants (mean age 23.4 ± 1.9 years). Factor analysis showed 71.7% of total variance explained by four components: impaired thermoregulation (C for cold), disrupted appetite (H for hunger), affective problems (I for irritability) and lowered level of cognitive functioning (Ca for cognitive attenuation). A Polish version of the CHICa scale showed satisfactory psychometric properties. Cronbach's alpha of the subscales were between 0.90 and 0.95. All four subscales exhibited a significant increase with an experimental 3-h daily sleep restriction over a period of 1 week; cognitive attenuation was the most symptomatic. Cognitive problems (reduced concentration, comprehension and accuracy) and a lack of energy seem to be the most specific subjective manifestations of the chronic sleep deficit state. CHICa may be helpful in research on inter-and intra-individual differences and on the efficacy of various counteractive treatments for the consequences of sleep deprivation.
dc.affiliationpl
Wydział Zarządzania i Komunikacji Społecznej : Instytut Psychologii Stosowanej
dc.affiliationpl
Pion Prorektora ds. badań naukowych i funduszy strukturalnych : Małopolskie Centrum Biotechnologii
dc.contributor.authorpl
Kontrymowicz-Ogińska, Halszka - 130256
dc.contributor.authorpl
Mojsa-Kaja, Justyna - 160667
dc.contributor.authorpl
Fąfrowicz, Magdalena - 127888
dc.contributor.authorpl
Marek, Tadeusz - 102084
dc.date.accessioned
2014-10-30T10:34:20Z
dc.date.available
2014-10-30T10:34:20Z
dc.date.issuedpl
2014
dc.description.numberpl
3
dc.description.physicalpl
341-348
dc.description.publicationpl
0,4
dc.description.volumepl
23
dc.identifier.doipl
10.1111/jsr.12115
dc.identifier.eissnpl
1365-2869
dc.identifier.issnpl
0962-1105
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/2207
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights.licence
bez licencji
dc.subject.enpl
chronic sleep deprivation
dc.subject.enpl
individual differences
dc.subject.enpl
sleep deficit
dc.subject.enpl
sleep loss consequences
dc.subtypepl
Article
dc.titlepl
Measuring individual vulnerability to sleep loss : the CHICa scale
dc.title.journalpl
Journal of Sleep Research
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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