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biological rhythms

 activity that occur with some regularity in an organism.Infradian rhythms occur less than once a day (e.g. human menstrual cycle), circadian rhythms repeat themselves every 24 hours (e.g. sleep/waking cycle), andultradian rhythms more than once a day (e.g. stages of sleep during one night).

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Psychology term of the day

June 19th 2021

negativereinforcement

in operantconditioning, a method to increase the probability and strength of aresponse by removing or withholding an aversive stimuli  (negative reinforcer)