the recording of different biological factors during sleep, such as brain waves, muscle tension, and eye movement.

A diagnostic test during which a number of physiologic variables are measured and recorded during sleep (e.g. brain electrical activity, muscle movement, breathing/air flow, etc.).

all-night recording of brain waves, eye movements, muscle tone, respiration, heart rate to diagnose sleep disorders

a test that records a variety of body functions during sleep, such as the electrical activity of the brain, eye movement, muscle activity, heart rate, respiratory effort, air flow, and blood oxygen levels

a cluster or pattern of waking behavior that appears during sleep, such as somnabulism (sleepwalking), sleeptalking, and enuresis (bedwetting)

Continuous recording of specific physiologic variables during sleep . Polysomnography typically records brain wave changes (electroencephalogram), eye movements (electrooculogram), muscle tone ( electromyogram ), respiration, electrocardiogram (EKG), and leg movements. See the entire definition of Polysomnography

A test that records sleep architecture (for example, the amount of NREM and REM sleep, number of arousals) and a variety of body functions during sleep, including breathing patterns, heart rhythms and limb movements.

The technique of monitoring normal and abnormal physiologic activity during sleep.

sleep study, in which numerous physiological monitors are attached to the patient to record nighttime breathing, brain activity, and physical activity

Simply means a recording of lots of things during sleep. Has come to mean recording at least EEG, EMG and EOG all night.

studying physical measures - such as breathing - during sleep in a controlled environment

Polysomnography is the simultaneous and continuous monitoring of normal and abnormal physiological activity during sleep

Polysomnography or PSG is a multi-parametric test used in the study of sleep. The name is derived from Greek and Latin roots: 'Polys' (many), 'somnus' (sleep), and 'graphein' (to write).