light–dark cycle

the schedule according to which the lights are turned on and off in rooms housing research animals. A 12-hour light–dark cycle, in which the lights are on for 12 consecutive hours and then off for 12 consecutive hours, is commonly used.

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Psychology term of the day

January 3rd 2025

prenatal care

health care and educational services provided to or obtained by a woman during pregnancy. Such services are intended to prevent complications and decrease the risk of maternal or fetal mortality.