Objective and Subjective Sleep Disturbances in Individuals with Psychiatric Disabilities.
ABSTRACT Sleep disturbances are common complaints in individuals with psychiatric disabilities, frequently occurring at onset and with exacerbation of illness. A small descriptive study of community-based overweight individuals (N = 9) completed the Pittsburgh Sleep Quality Index, wore an ActiGraph and kept a sleep diary for 7 to 14 days. All but two participants had poor sleep efficiency based on actigraphy scores, an objective measure of sleep. These scores were in agreement with the Pittsburgh Sleep Quality Index, a self-report measure, in all but one participant. The findings indicate the Pittsburgh Sleep Quality Index is a comprehensive measure to use in assessing sleep in individuals who have psychiatric disabilities.
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ABSTRACT: Insomnia is frequent in schizophrenia and may contribute to cognitive impairment as well as overuse of weight inducing sedative antipsychotics. We investigated the effects of eszopiclone on sleep and cognition for patients with schizophrenia-related insomnia in a double-blind placebo controlled study, followed by a two-week, single-blind placebo phase.Schizophrenia Research 10/2014; · 4.43 Impact Factor
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ABSTRACT: The purpose of this study was to determine the relationship between quality of sleep and autonomic nervous functioning in healthy adult Japanese women using three measures, namely, the Pittsburgh Sleep Quality Index (PSQI) for subjective assessment of sleep quality, actigraphy for objective assessment of sleep, and heart rate variability using high frequency and low frequency domains. Participants were 31 healthy women in their 20s to 40s who met the selection criteria, including having normal monthly menstrual periods. Participants were categorized as good or poor sleepers according to their PSQI score. Median correlation coefficients of activity count and high frequency were -0.62 (range -0.43 to -0.84) for good sleepers and -0.45 (range 0.003 to -0.64) for poor sleepers. Good sleepers showed a significantly higher correlation of activity count and high frequency (Z=-2.11, P<0.05). Median correlation coefficients of activity count and low frequency/high frequency were 0.54 (range 0.29-0.73) for good sleepers and 0.41 (range 0.11-0.63) for poor sleepers. The PSQI, actigraphy data, and heart rate variability results showed positive correlations between sleep time as measured by PSQI and duration of inactivity as measured by actigraphy (r=0.446, P<0.05) and sleep time as measured by actigraphy (r=0.377, P<0.05), and a negative correlation between sleep time as measured by PSQI and the correlation coefficients of activity count and high frequency (r=-0.460, P<0.01). These results support the finding that sleep-wake rhythms can be monitored efficiently with actigraphy, providing accurate data that can support the diagnosis of sleeping disorders. Furthermore, actigraphy data were associated with heart rate variability and PSQI findings, but only in subjects who were poor sleepers. Actigraphy is an accurate, efficient, rapid, and inexpensive test for determining objective and subjective sleeping problems, and can also be used in clinical tests for sleep assessment.Neuropsychiatric Disease and Treatment 01/2014; 10:89-96. · 2.15 Impact Factor