Biopsychology: Infradian and Ultradian Rhythms Essay.
Another important biological rhythm is the infradian rhythm. Infradian rhythms last longer than 24 hours and can be weekly, monthly or annually. A monthly infradian rhythm is the female menstrual cycle, which is regulated by hormones that either promote ovulation or stimulate the uterus for fertilisation.
Ultradian rhythms last fewer than 24 hours and can be found in the pattern of human sleep. This cycle alternates between REM (rapid eye movement) and NREM (non-rapid movement) sleep and consists of five stages. The cycle starts at light sleep, progressing to deep sleep and then REM sleep, where brain waves speed up and dreaming occurs. This repeats itself about every 90 minutes throughout the.
Outline and Evaluate Infradian Rhythms Including Research. Filed Under: Research papers Tagged With: biology. 2 pages, 876 words. Infradian rhythms are biological rhythms that last for more than 24 hours. They are controlled by the hypothalamus, an endogenous pacemaker which requires input from exogenous zeitgebers so the rhythm can run correctly. An example of an infradian rhythms is the.
Infradian rhythms: occur less than once a day: e.g. menstruation (monthly) or hibernation (yearly) All bodily rhythms are controlled by an interaction of: Endogenous pacemakers (EP’s). Internal biological structures that control and regulate the rhythm. Exogenous zeitgebers (time givers) (EZ’s). External environmental factors that influence the rhythm. CIRCADIAN RHYTHMS; Heart rate.
The menstrual cycle is an example of an infradian rhythm. Infradian rhythms that occur as a result of seasonal changes, for example, migration and hibernation are called circannual rhythms. The menstrual cycle has a period of about 28 days, although the timing can vary according to environmental factors. For example, menstrual cycles may become synchronised if women spend a lot of time.
Infradian rhythms are less frequent once in a day such as the menstrual cycle or hibernation. The research into these rhythms offers an insight into how the body is influenced by exogenous zeitgebers and endogenous pacemakers, but it is still nonetheless unclear what it more influential. Don't use plagiarized sources. Get Your Custom Essay on Outline and Evaluate one or more biological rhythms.
The outline above describes a typical or average night’s sleep. Obviously there are large individual differences between people. Some may sleep much shorter periods, others who have been sleep deprived will spend longer in stage 4 and REM, and the pattern changes with age. Infradian These occur over a period of time greater than 24 hours. In.
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Outline Russell's (1980) study. Russell (1980) arranged to apply the pheromones of one woman to a group of sexually inactive women. The donor's odour was collected from pads placed under her arms. The pad was then rubbed on the upper lip of each participant. This was repeated daily for 5 months. The control group received the same treatment but not the odour- single blind technique as.
Rhythm has become a part of music in the same way that music has become a way of life whether people like it or not. At one point or another, every person experienced humming, dancing in the rain, unconsciously tapping a foot to a song and without so much of a realization, everybody has felt the rhythm of music. It can therefore be safe to say that no music can exists without rhythm and some.
An infradian rhythm is a biological rhythm with a period longer than 24 hours. Due to the longer time frame for each cycle the frequency of occurrence in these cycles is lower than that of the circadian rhythms. Examples include: female menstrual cycle.
Outline and Evaluate one or more biological rhythms Essay Posted by By Joseph November 25, 2019. There are three main biological rhythms, which are called infradian, circadian and ultradian. Ultradian rhythms occur multiple times in one day. Circadian rhythms are cycles, which occur once a day, so within the 24 hours such as the sleep-wake cycle. Infradian rhythms are less frequent once in a.
Outline and Evaluate one or more biological rhythms. Filed Under: Research papers. 3 pages, 1286 words. There are three main biological rhythms, which are called infradian, circadian and ultradian. Ultradian rhythms occur multiple times in one day. Circadian rhythms are cycles, which occur once a day, so within the 24 hours such as the sleep-wake cycle. Infradian rhythms are less frequent.
The menstrual cycle is another infradian rhythm with an average cycle length of 28 days. It is regulated by the hormones progesterone and oestrogen, produced by the pituitary gland and the ovaries. As the cycle beginds, both hormone levels are low during menstruation, but a surge in oestrogen levels triggers ovulation. After this, progesterone levels steadily increase over two weeks to.
Infradian Rhythms Circannual Rhythms Tidal Rhythms Cellular Rhythms. Ultradian Rhythms Within humans, daily cycles of wakefulness and sleep, follow a basic 24 hour cycle or circadian rhythm. However within the sleep portion of this cycle another type of rhythm, an ultradian rhythm exists. An ultradian rhythm is a biological rhythm that occurs with a frequency of less than 24 hours. Sleep is.
In chronobiology, an infradian rhythm is a rhythm with a period longer than the period of a circadian rhythm, i.e., with a frequency less than one cycle in 24 hours. Some examples of infradian rhythms in mammals include menstruation, breeding, migration, hibernation, molting and fur or hair growth, and tidal or seasonal rhythms. In contrast, ultradian rhythms have periods shorter than the.