| Autor: |
H, Schulz, G, Dirlich, J, Zulley |
| Jazyk: |
němčina |
| Rok vydání: |
1976 |
| Předmět: |
|
| Zdroj: |
Arzneimittel-Forschung. 26(6) |
| ISSN: |
0004-4172 |
| Popis: |
It was investigated whether the REM-NREM (rapid eye movement-non-REM) sleep rhythm has a stable period during long-term observations. Sequences of 17 to 31 consecutive sleep records were analyzed for 6 test subjects and 1 patient. Period stability was confirmed for three experimental conditions: a) undisturbed night sleep, b) inversion of the sleep-waking cycle, c) absence of external timing mechanisms. The period of the ultradian REM sleep rhythm is no integral submultiple of 24 h, so that the remainder causes a daily drift in the REM sleep rhythm. It is assumed that the ultradian process is controlled endogenously. In contrast to the circadian rhythm the ultradian rhythm appears to be free-running under normal conditions. The stability of the ultradian period has been shown in long-term observations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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