PMID- 9302721
OWN - NLM
STAT- MEDLINE
DCOM- 19971223
LR  - 20090129
IS  - 0161-8105 (Print)
IS  - 0161-8105 (Linking)
VI  - 20
IP  - 6
DP  - 1997 Jun
TI  - A comparison of sleep detection by wrist actigraphy, behavioral response, and 
      polysomnography.
PG  - 388-95
AB  - Two alternative methods for detecting sleep, wrist actigraphy (ACT) and 
      behavioral response monitoring (BRM), were compared to polysomnography (PSG). In 
      the BRM paradigm, a threshold intensity visual or auditory stimulus generated by 
      a palm-top computer was presented about once per minute, and subjects pressed a 
      microswitch if the stimulus was detected. A response within 5 seconds of the 
      stimulus was scored as "wake" and a failure to respond as "sleep." Four males and 
      four females underwent two nights of simultaneous in-home PSG, BRM, and ACT. Each 
      night, subjects underwent a protocol designed to generate five sleep latency 
      trials. Subjects were awakened by alarm clocks at approximately 1-hour intervals 
      and remained awake for 10 minutes before returning to bed for another sleep onset 
      latency (SOL) trial. Minute-by-minute comparisons were made for PSG versus ACT 
      and BRM. All measures were fairly sensitive in detecting sleep, but BRM was more 
      accurate in determining SOL and subsequent wakefulness. Behavioral response 
      monitoring using a tone resulted in more responses and arousals prior to and 
      during light stages of sleep than BRM using a light. It is concluded that BRM has 
      some important advantages as a simple, minimally invasive method for monitoring 
      sleep.
FAU - Blood, M L
AU  - Blood ML
AD  - Department of Psychiatry, School of Medicine, Oregon Health Sciences University, 
      Portland 97201, USA.
FAU - Sack, R L
AU  - Sack RL
FAU - Percy, D C
AU  - Percy DC
FAU - Pen, J C
AU  - Pen JC
LA  - eng
GR  - K02 MH01005/MH/NIMH NIH HHS/United States
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, U.S. Gov't, P.H.S.
PL  - United States
TA  - Sleep
JT  - Sleep
JID - 7809084
SB  - IM
MH  - Adult
MH  - *Arousal
MH  - Female
MH  - Humans
MH  - Male
MH  - Polysomnography/*methods
MH  - Sleep Stages
MH  - *Sleep, REM
MH  - *Wakefulness
MH  - *Wrist
EDAT- 1997/06/01 00:00
MHDA- 1997/09/26 00:01
CRDT- 1997/06/01 00:00
PHST- 1997/06/01 00:00 [pubmed]
PHST- 1997/09/26 00:01 [medline]
PHST- 1997/06/01 00:00 [entrez]
PST - ppublish
SO  - Sleep. 1997 Jun;20(6):388-95.