Daniel F Kripke
Biographic Data
| ID | 8871740 |
|---|---|
| NAME | Daniel F Kripke |
| GIVEN NAMES | Daniel F |
| FAMILY NAME | Kripke |
| SIGNATURE | KRIPKE D F |
| AFFILIATIONS | University of California San Diego |
| ORCID | 0000-0002-2318-8179 |
| VERIFIED | Yes |
| TOTAL WORKS | 9 |
| TOTAL CITATIONS | 0 |
| WORKS AS AUTHOR | 9 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1972 |
| LATEST PUBLICATION YEAR | 2004 |
| H-INDEX | 0 |
Self-reported Sleep Complaints With Long and Short Sleep
OBJECTIVE: Although the problems associated with insufficient sleep have been thoroughly researched, there has been far less substantiation of problems associated with long sleep. Recent evidence shows that habitual sleep duration greater than 7 hours is associated with increased rates of mortality. This study compared the rates of sleep problems in both long and short sleepers. METHODS: Self-reported sleep complaints (eg, sleep onset latency, aw…
Sleep and Mortality
University of California, San Diego 9500 Gilman Drive La Jolla, CA 92093-0667 Email: [email protected]
Mortality Associated With Sleep Duration and Insomnia
BACKGROUND: Patients often complain about insufficient sleep or chronic insomnia in the belief that they need 8 hours of sleep. Treatment strategies may be guided by what sleep durations predict optimal survival and whether insomnia might signal mortality risks. METHODS: In 1982, the Cancer Prevention Study II of the American Cancer Society asked participants about their sleep duration and frequency of insomnia. Cox proportional hazards survival …
Automatic Sleep/Wake Identification From Wrist Activity
The purpose of this study was to develop and validate automatic scoring methods to distinguish sleep from wakefulness based on wrist activity. Forty-one subjects (18 normals and 23 with sleep or psychiatric disorders) wore a wrist actigraph during overnight polysomnography. In a randomly selected subsample of 20 subjects, candidate sleep/wake prediction algorithms were iteratively optimized against standard sleep/wake scores. The optimal algorith…
Ultradian Cardiac Rhthms in Surgical Intensive Care Unit Patients
Several reports have suggested that heart rate may be regulated by an ultradian biological rhythm with a period of about 90--100 min. Blood pressure and heart rate were collected from 10 Surgical Intensive Care patients at 5-min intervals and analyzed by computer. No 90-min rhthms were found, indicating this rhythm has no significant influence on heart rate or blood pressure in postsurgical patients
Sleep Disorder and Psychobiological Symptomatology in Male Psychiatric Outpatients and Male Nonpatients
Sleep disturbance was studied in relation to psychiatric and physical symptoms for 214 male psychiatric outpatients and 248 male nonpatients. Our self-report instrument required that subjects describe the frequency of symptoms precisely on a five-point scale from "every day" to "not at all." Percentages are based on the numbers of subjects reporting a symptom as occurring "every day" or "several times a week." More patients reported sleep disturb…
Ultradian Rhythms in Walking Gastric Activity
Ninety to 120 min ultradian rhythms have been described in physiologic and behavioral functions relating to biologic drives. Gastric contractility rhythms were examined in isolated fasting volunteers to supplement behavioral observations of "oral" drives. A clear ultradian rhythms was observed, indicating inherent physiologic oscillation in stomach contractions
Circadian rhythms ofMacaca mulatta
An Ultradian Biologic Rhythm Associated With Perceptual Deprivation and REM Sleep
To demonstrate that the 10 to 20 cycle/day oscillations expressed during sleep by the cyclic occurrence of rapid-eye-movement periods may be present during wakefulness, 6 normal subjects were isolated for 36 hours. The electroencephalogram and several physiologic and behavioral indices were continuously recorded. After 8 hours of sleep, subjects attempted to remain awake and perform consistent behavioral tasks for 24 hours, but no subject could r…
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Circadian rhythms ofMacaca mulatta
An Ultradian Biologic Rhythm Associated With Perceptual Deprivation and REM Sleep
To demonstrate that the 10 to 20 cycle/day oscillations expressed during sleep by the cyclic occurrence of rapid-eye-movement periods may be present during wakefulness, 6 normal subjects were isolated for 36 hours. The electroencephalogram and several physiologic and behavioral indices were continuously recorded. After 8 hours of sleep, subjects attempted to remain awake and perform consistent behavioral tasks for 24 hours, but no subject could r…
Ultradian Rhythms in Walking Gastric Activity
Ninety to 120 min ultradian rhythms have been described in physiologic and behavioral functions relating to biologic drives. Gastric contractility rhythms were examined in isolated fasting volunteers to supplement behavioral observations of "oral" drives. A clear ultradian rhythms was observed, indicating inherent physiologic oscillation in stomach contractions
Sleep Disorder and Psychobiological Symptomatology in Male Psychiatric Outpatients and Male Nonpatients
Sleep disturbance was studied in relation to psychiatric and physical symptoms for 214 male psychiatric outpatients and 248 male nonpatients. Our self-report instrument required that subjects describe the frequency of symptoms precisely on a five-point scale from "every day" to "not at all." Percentages are based on the numbers of subjects reporting a symptom as occurring "every day" or "several times a week." More patients reported sleep disturb…
Ultradian Cardiac Rhthms in Surgical Intensive Care Unit Patients
Several reports have suggested that heart rate may be regulated by an ultradian biological rhythm with a period of about 90--100 min. Blood pressure and heart rate were collected from 10 Surgical Intensive Care patients at 5-min intervals and analyzed by computer. No 90-min rhthms were found, indicating this rhythm has no significant influence on heart rate or blood pressure in postsurgical patients
Automatic Sleep/Wake Identification From Wrist Activity
The purpose of this study was to develop and validate automatic scoring methods to distinguish sleep from wakefulness based on wrist activity. Forty-one subjects (18 normals and 23 with sleep or psychiatric disorders) wore a wrist actigraph during overnight polysomnography. In a randomly selected subsample of 20 subjects, candidate sleep/wake prediction algorithms were iteratively optimized against standard sleep/wake scores. The optimal algorith…
Mortality Associated With Sleep Duration and Insomnia
BACKGROUND: Patients often complain about insufficient sleep or chronic insomnia in the belief that they need 8 hours of sleep. Treatment strategies may be guided by what sleep durations predict optimal survival and whether insomnia might signal mortality risks. METHODS: In 1982, the Cancer Prevention Study II of the American Cancer Society asked participants about their sleep duration and frequency of insomnia. Cox proportional hazards survival …
Sleep and Mortality
University of California, San Diego 9500 Gilman Drive La Jolla, CA 92093-0667 Email: [email protected]
Self-reported Sleep Complaints With Long and Short Sleep
OBJECTIVE: Although the problems associated with insufficient sleep have been thoroughly researched, there has been far less substantiation of problems associated with long sleep. Recent evidence shows that habitual sleep duration greater than 7 hours is associated with increased rates of mortality. This study compared the rates of sleep problems in both long and short sleepers. METHODS: Self-reported sleep complaints (eg, sleep onset latency, aw…
Medicine (9 works) · Psychology (7 works) · Internal Medicine (6 works) · Sleep (system call) (6 works) · Sleep and Wakefulness Research (6 works) · Sleep and related disorders (5 works) · Audiology (4 works) · Electroencephalography (4 works) · Insomnia (4 works) · Internal Medicine (4 works)