The Use of Time Lapse Video Recording of Sleep‐Wake Behavior in Human Infants

Abstract

The present study describes the use of time lapse video recording or sleep‐wake states in human infants. Polygraphic studies were carried out simultaneously to evaluate validity. Six normal, full‐term infants were each recorded twice: first at 2 weeks and again at K weeks of age. Behavioral and physiologic states were scored from the video and polygraphic records, respectively, according to standard criteria. Interrater reliability for the video tapes was .92. In comparing the polygraphically determined states with the video scoring, a significant overall product‐moment correlation of .79 was obtained for all states and ages. Similarly, the individual state correlations at both ages were statistically significant between the systems. Wakefulness was the most highly correlated state. Active‐REM sleep was more highly correlated in the younger age group, while quiet‐NRKM was more highly correlated in the older age group.

A Comparison of the Sleep?Wake Patterns of Cosleeping and Solitary-Sleeping Infants

“…The mean maternal age for the cosleeping group was 29.3 years (range 18-36), while the mean maternal age for the solitary-sleeping group was 29.1 years (range [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35]. Five of the cosleeping families (62.5%) were middle-upper class, whereas six of the solitary-sleeping families (66.7%) were middle-upper class.…”

A Behavioral Model of Infant Sleep Disturbance

“…EEG measures remain, however, the method by which other measures of infant sleep state are calibrated. Anders and Sostek (1976) developed a timelapse video procedure for making all-night records of infant sleep. These records permit the analysis of both infant sleep state and some parenting activities during the night (Anders et al, 1992).…”

Sleep Architecture in Infants of Substance-Abusing Mothers

“…Both groups showed the expected rise in QS percent and decline in AS percent from one to twelve months of age. In both groups it was not until twelve months of age that the proportion of QS exceeded fifty percent of the sleep time Anders & Sostek, 1976;Anders & Taylor, 1994;Coons, 1987). Similarly, the percent of time awake was not significantly different between the two groups.…”

“…The rationale for using time-lapse video recording in the home has been described previously, as have the methods of recording and scoring the videotapes for sleep and waking states Anders, Keener, & Kraemer, 1985;Anders & Sostek, 1976).…”

“…The camera was secured on a tripod that overlooked the crib and a microphone was placed nearby to record infant vocalizations. were scored according to standard methods described previously Anders, Keener & Kraemer, 1985;Anders & Sostek, 1976). All coders completed a blinded training, reliability process.…”