Validation of actigraphy with continuous video-electroencephalography in children with epilepsy

Sadaka, Yair; Sadeh, Avi; Bradbury, Laura; Massicotte, Collin; Zak, Maria; Go, Cristina; Shorer, Zamir; Weiss, Shelly K.

doi:10.1016/j.sleep.2014.04.021

Cited by 21 publications

(12 citation statements)

References 36 publications

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“…The digital accelerometer enables the differentiation of probable sleep and wake states for each 30 s period of recording using a sleep/wake algorithm. Actigraphy has been validated against PSG, where it has shown high levels of sensitivity for detecting sleep [65]. Participants were asked to press the event marker when they got into bed at night and again when they got out of bed the following morning.…”

Section: Methodsmentioning

confidence: 99%

Predictors of Nightly Subjective-Objective Sleep Discrepancy in Poor Sleepers over a Seven-Day Period

et al. 2017

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This study sought to examine predictors of subjective/objective sleep discrepancy in poor sleepers. Forty-two individuals with insomnia symptoms (mean age = 36.2 years, 81% female) were recruited to take part in a prospective study which combined seven days of actigraphy with daily assessment of sleep perceptions, self-reported arousal, sleep effort, and mood upon awakening. A high level of intra-individual variability in measures of sleep discrepancy was observed. Multilevel modelling revealed that higher levels of pre-sleep cognitive activity and lower mood upon awakening were significantly and independently predictive of the underestimation of total sleep time. Greater levels of sleep effort predicted overestimation of sleep onset latency. These results indicate that psychophysiological variables are related to subjective/objective sleep discrepancy and may be important therapeutic targets in the management of insomnia.

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Section: Methodsmentioning

confidence: 99%

Predictors of Nightly Subjective-Objective Sleep Discrepancy in Poor Sleepers over a Seven-Day Period

et al. 2017

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“…Actigraphy has been established as a valid and reliable method for measuring toddlers’ sleep (Sadeh & Acebo, 2002; Sadaka, et al, 2014; Sadeh, Lavie, Scher, Tirosh, Epstein, 1991; Acebo, et al, 1999). The actigraph used was a MicroMini Motion Logger (Ambulatory Monitoring, Inc., Ardsley, New York), which is a small watch-like device that records motor activity via an accelerometer that monitors both speed and degree of motion in 1-minute epochs.…”

Section: Methodsmentioning

confidence: 99%

Relations Between Toddler Sleep Characteristics, Sleep Problems, and Temperament

Molfese

Rudasill

Prokasky

et al. 2015

Developmental Neuropsychology

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Two sources of information (parent reported sleep diaries and actigraph records) were used to investigate how toddler sleep characteristics (bed time/sleep onset, wake time/sleep offset, total nighttime sleep and total sleep time) are related to sleep problems and temperament. There were 64 toddler participants in the study. Consistent with studies of older children, parent reports differed from actigraph based records. The findings that parent reported and actigraph recorded sleep characteristics varied as a function of parent report of toddler sleep problems and temperament add needed information on toddler sleep. Such information may contribute to improving parents’ awareness of their child’s sleep characteristics and correlates of problem sleep.

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“…We also have no way of determining if participants were subjected to external sleep disruptors such as pets, which could have influenced the output. Finally, while we recognise that multiple types of wrist actigraphs have been validated against PSG for multiple sleep outcomes in many groups, [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] not all sleep parameters included in our study have been validated. It remains a possibility that some differences may be present between the first night and subsequent nights according to the actigraph type/manufacture, given that multiple devices are now available.…”

Section: Discussionmentioning

confidence: 99%

Assessment for the possibility of a first night effect for wrist actigraphy in adolescents

2016

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ObjectivesEvidence of a ‘first night effect’ has been documented for polysomnography. The possibility of this has not been previously assessed in wrist actigraphy, yet may have important implications for the study design of future sleep research. We sought to examine potential evidence of a ‘first night effect’ for wrist actigraphy in adolescents across weekdays and weekend nights for multiple sleep outcomes.Design3-year prospective cohort study (Midlands Adolescent Schools Sleep Education Study).Setting8 secondary schools in the Midlands region of the UK.ParticipantsAdolescents (aged 11–13 years at baseline) were recruited to the study and were requested to wear a wrist actigraph for 7 consecutive days/nights at baseline and then annually for 2 years during the second term of the academic year.Primary outcome measuresWe compared multiple sleep outcomes (total sleep time, wake after sleep onset, sleep efficiency, sleep onset latency, number of awakenings, length of awakenings, sleep onset time) when the device was worn on a weekday and weekend and compared these to other nights to identify possible evidence of a ‘first night effect’ for wrist actigraphy.ResultsNo significant differences were found between any sleep outcomes when the first night of wrist actigraphy was on a weekday compared with other weekdays. When the first night was measured on a weekend (Friday), average total sleep time was significantly greater (486±5 min) compared with the second night (Saturday; 469±6 min), p=0.01.ConclusionsWe found no evidence to support a ‘first night effect’ for wrist actigraphy in our adolescent sample. The first night of actigraphy data should not be disregarded in future studies that deploy this technique to measure sleep over prolonged time periods.

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Validation of actigraphy with continuous video-electroencephalography in children with epilepsy

Cited by 21 publications

References 36 publications

Predictors of Nightly Subjective-Objective Sleep Discrepancy in Poor Sleepers over a Seven-Day Period

Predictors of Nightly Subjective-Objective Sleep Discrepancy in Poor Sleepers over a Seven-Day Period

Relations Between Toddler Sleep Characteristics, Sleep Problems, and Temperament

Assessment for the possibility of a first night effect for wrist actigraphy in adolescents

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