Actigraphy is a useful tool in the measurement of sleep, with many applicable variables that indicate the quality of a study participant’s sleep. Typical actigraphy derived variables from sleep studies include sleep efficiency, sleep latency, total sleep time, and the number of nightly awakenings. Actigraphy can also give parameters for autocorrelation and sinusoidal fitting that are used in ci...

The current study examined associations among actigraphy, maternal sleep diaries, and the parent-completed child behavior checklist (CBCL) sleep items. These items are often used as a sleep measure despite their unclear validity with young children. Eighty middle class families (39 girls) drawn from a community sample participated. Children (M = 25.34 months, SD = 1.04) wore an actigraph monito...

This study sought to: (1) compare actigraphy-derived estimated sleep variables to the same variables based on the gold-standard of sleep assessment, polysomnography; (2) examine whether the correlations between the measures differ between children with attention-deficit/hyperactivity disorder and typically developing children; and (3) determine whether these correlations are altered when childr...

These clinical guidelines, which have been reviewed and approved by the Board of Directors of the American Sleep Disorders Association, provide recommendations for the practice of sleep medicine in North America for the use of actigraphy in the clinical assessment of sleep disorders. The American Sleep Disorders Association has produced these guidelines, based upon a critical review of the scie...

STUDY OBJECTIVES The aim of this study was to assess the role of clinical context in determining the correspondence between actigraphic and reported sleep measures in preschool children. METHODS Sleep was assessed using actigraphy and parental reports in a clinical sample of 109 preschool children between the ages 4 and 6 years suffering from significant nighttime fears and in a sample of 30 ...

OBJECTIVE Sleep difficulties are common reasons why parents seek medical intervention in children with autism spectrum disorders (ASDs). We determined whether a pamphlet alone could be used by parents to help their child's insomnia. METHODS Thirty-six children with ASD, ages 2 to 10 years, were enrolled. All had prolonged sleep latency confirmed by actigraphy showing a mean sleep latency of 3...

STUDY OBJECTIVES To investigate the feasibility of using wrist actigraphy in a postoperative cohort of elderly patients (delirious versus nondelirious), and to use actigraphy to help characterize diurnal rest-activity patterns in this population. METHODS This was a prospective postoperative study using wrist actigraphy and clinical scales (DRS-R-98 and Mini-Mental State Examination). Actigrap...

POLYSOMNOGRAPHY (PSG), CONSISTING OF SEVERAL PHYSIOLOGICAL MEASURES SUCH AS ELECTROENCEPHALOGRAPHY (EEG) AND ELECTROMYOGRAPHY (EMG), IS WIDELY CONSIDERED AS THE GOLDEN STANDARD TO DIFFERENTIATE SLEEP FROM WAKEFULNESS IN SLEEP RESEARCH. However, it is not well suited for long-term and large-scale studies or for measurements outside of the laboratory. Therefore, unobtrusive, userfriendly and low-...

ACTIGRAPHS ARE SMALL DEVICES, USUALLY WORN AROUND THE WRIST, THAT DETECT AND STORE MOVEMENT FOR LATER ANALYSIS OF LEVELS OF ACTIVITY, sleep and wake parameters, and circadian rhythm parameters.1 These measurement goals make actigraphy a useful tool for objectively studying attention deficit hyperactivity disorder (ADHD), since this disorder is by definition associated with hyperactivity and wit...

897 Commentary—Pillai and Delahanty Nearly 70% of individuals with posttraumatic stress disorder (PTSD) report clinically significant levels of sleep disturbances,1 and sleep complaints appear more refractory to therapy than other features of the disorder.2 However, data from several polysomnography (PSG) and actigraphy-based studies suggest that individuals with PTSD often report sleep disturb...