| sleep, rem | A stage of sleep characterised by rapid movements of the eye and low voltage fast pattern eeg. It is usually associated with dreaming. (12 Dec 1998) |
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| sleep spindle | The electroencephalographic record of 14-per-second bursts of wave frequency seen on EEG examination. (05 Mar 2000) |
| sleep stages | Periods of sleep manifested by changes in eeg activity and certain behavioural correlates; includes stage 1: sleep onset, drowsy sleep; stage 2: light sleep; stages 3 and 4: delta sleep, light sleep, deep sleep, telencephalic sleep. (12 Dec 1998) |
| sleep terror | A disorder allied to nightmare, occurring in children, in which the child awakes screaming with fright, the distress persisting for a time during a state of saemiconsciousness. Synonym: pavor nocturnus, sleep terror. (05 Mar 2000) |
| delta sleep-inducing peptide | <chemical> A nonapeptide that is found in neurons, peripheral organs, and plasma. This neuropeptide induces mainly delta sleep in mammals. In addition to sleep, the peptide has been observed to affect electrophysiological activity, neurotransmitter levels in the brain, circadian and locomotor patterns, hormonal levels, psychological performance, and the activity of neuropharmacological drugs including their withdrawal. Chemical name: Delta sleep-inducing peptide (12 Dec 1998) |
| obstructive sleep apnoea | A form of sleep apnoea which occurs as the result of a physical occlusion of the oropharyngeal airway during sleep. (27 Sep 1997) |
| electric sleep | A condition of convulsions and unconsciousness induced by the passage of an electric current through the brain. (05 Mar 2000) |
| electrotherapeutic sleep therapy | Treatment by inducing sleep by means of nonconvulsive electric stimulation of the brain. (05 Mar 2000) |
| twilight sleep | Formerly a method of producing sleep for delivery by a combination of morphine and scopolamine. (05 Mar 2000) |
| light sleep | A condition of half sleep. Synonym: light sleep. Origin: dys-+ G. Nystaxis, drowsiness (05 Mar 2000) |
| anatomical position | The erect position of the body with the face directed forward (skull aligned in orbitomeatal or Frankfort plane); the arms at the side and the palms of the hands directed forward; the terms posterior, anterior, lateral, medial, etc., are applied to the parts as they stand related to each other and to the axis of the body when in this position. (05 Mar 2000) |
| Bozeman's position | Knee-elbow position, the patient being strapped to supports. (05 Mar 2000) |
| Valentine's position | A supine position on a table with double inclined plane so as to cause flexion at the hips; used to facilitate urethral irrigation. (05 Mar 2000) |
| mandibular hinge position | Any position of the mandible which exists when the condyles are so situated in the temporomandibular joints that opening or closing movements can be made on the hinge axis. (05 Mar 2000) |
| genucubital position | A prone position resting on the knees and elbows, assumed for gynecologic or rectal examination or operation. Synonym: genucubital position. (05 Mar 2000) |