Abstract
UNDER conditions of constant temperature, ad-libitum food and a 12-h light-dark cycle locomotor activity in Drosophila follows a circadian rhythm with a peak of activity soon after light onset. Green1, working with Phormia regina, has recently suggested that spontaneous locomotor activity is controlled by a hormone released from the corpus cardiacum. The release of this factor is thought to be under the control of receptors in the foregut capable of monitoring the presence or absence of food.
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Green, G. W., J. Insect Physiol., 10, 711 (1964).
Thompson, W. R., J. Comp. Physiol. Psychol., 46, 323 (1953).
Fehrer, E., J. Comp. Physiol. Psychol., 49, 549 (1956).
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CONNOLLY, K. Locomotor Activity in Drosophila as a Function of Food Deprivation. Nature 209, 224 (1966). https://doi.org/10.1038/209224a0
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DOI: https://doi.org/10.1038/209224a0
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