Circadian locomotor activity of Musca flies: Recording method and effects of 10 Hz square-wave electric fields
- Univ. of Tuebingen (Germany)
- Univ. of Trondheim, Dragvoll (Norway). Dept. of Physics
Musca domestica flies that were exposed to a uniform vertical 10 Hz electric square-wave field of 1 kVm{sup {minus}1} changed the period length of their circadian locomotor activity rhythm. Under constant conditions, the clock of short-period flies was slowed down by the field, whereas the clock of long-period flies either was affected only scarcely (experiments at about 19 C) or ran faster (experiments at 25 C). It the field was applied for only 12 h daily, then 30--40% of the flies were synchronized. Thus, the field could function as a weak Zeitgeber (synchronizer). If the field was increased to 10 kVm{sup {minus}1}, then 50--70% of the flies were synchronized. Flies avoided becoming active around the onset of the 12 h period of exposure to a 10 Hz field. The results of these experiments are discussed with respect to similar experiments by Wever on the effects of exposure to a 10 Hz field on the circadian system of man.
- OSTI ID:
- 227884
- Journal Information:
- Bioelectromagnetics, Vol. 17, Issue 2; Other Information: PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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