Jet Lag occurs when we cross several world time zones quickly. This is the study of how timing affects drug treatments and as the circadian rhythm affects digestion, heart rate and hormones among other functions, this can be taken into account when consuming drugs. Your email address will not be published. Equipotentiality theory argues that although basic brain functions such as the motor cortex and sensory functions are controlled by localised brain areas, higher cognitive functions such as problem-solving and decision-making are not localised. The overall effect of crossing time zones in this manner is that our body will feel as if it is daytime during the night, and that it is night-time during the day. SamB9 Member since 2 year ago 8 documents sold. It is possible that as we age and face declining mental abilities the brain compensates by allocating more resources to cognitive tasks.

Motor and Somatosensory Areas. The pituitary gland is the master gland and controls release of hormones from many of the glands described above. Physiological reaction includes increased heart rate. For example, in chickens, brain lateralisation allows birds to use one hemisphere for locating food, the other hemisphere to watch for predators. Discuss the role of endogenous pacemakers and exogenous zeitgebers in the control of a biological rhythm Essay Plan. The structure and function of sensory, relay and motor neurons.

In truth our behaviour is much more complex and not so deterministic as such biological explanations propose. Physiological reaction includes increased heart rate.

However this was a single case study involving one individual and such generalisations may not apply to others due to individual differences.

Latest posts by Saj Devshi see all. Although he organised his time in regular patterns of sleeping and waking his body seemed to have a preference for a 25 hour rather than a hour cycle. Because these small voltages are difficult to pick out from other electrical signals in the brain, the stimulus needs to be repeatedly presented, and only signals which occur every time the stimulus is presented will be considered an ERP for that stimulus.


Cultural variation in attachments Van Ijzendoorn Activity Worksheet cultural vairations textbook pages Lesson: Discuss the role of endogenous pacemakers and exogenous zeitgebers in the control of a biological rhythm Essay Plan. Measures small voltages of electrical activity when a stimulus is presented.

endogenous pacemakers psychology essay

Discuss the role of endogenous pacemakers and exogenous zeitgebers in the control of a biological essaj Essay Plan This is an essay plan for the essay title ‘Discuss the role of endogenous pacemakers and exogenous zeitgebers in control of a biological rhythm’, designed in a way that should make the material easy to remember.

These activities are generally performed without conscious control.

Another piece of evidence in support of this idea is that Innuit Indians who live in the Arctic Circle inhabit an environment that has hardly any darkness in summer and hardly any light in winter. If you’re studying Psychology why not Follow me on Twitter, LIKE my Facebook page or subscribe to my YouTube channel and get tons of free resources and updates and see just how well you can do too. Back to ‘Biological Rhythms’. The cerebral hemispheres control higher level cognitive and emotional processes:.

The more time zones we travel through the more severe this effect will be.

A Psychology (AQA)

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endogenous pacemakers psychology essay

The fight or flight response including the role of adrenaline. Learning and new experiences cause new neural pathways to strengthen whereas neural pathways which are used infrequently become weak and eventually die.

endogenous pacemakers psychology essay

Nerve impulses then travel up the optic nerve to the thalamus and are then passed on to the visual cortex in the hindbrain. What do you want pacemakdrs do?


Biological Psychology

The same effect is produced by damaging the SCN of rats, and pshchology born nedogenous eyes cannot regulate bodily rhythms. This ebook covers your unit 1 exam for AS and A level psychology with model essay answers for every question.

The cerebellum controls movement and motor coordination. They propose behaviour can be explained due to biological structures in the brain or hormonal activity. With their assistance, you can become well prepared and can avoid having to retake exams.

Biological Rhythms – Circadian Rhythms AQA Psychology Paper 2

No generic book summaries, but the specific content you need to ace your exams. Endoegnous SCN regulates the secretion of melatonin in the pineal gland another endogenous pacemaker which produces melatonin which affects sleep and is also connected to the retina of the eye through a separate pathway.

Broca found that damage to the left hemisphere led to impaired language but damage to the same area on the right hemisphere did not. Such studies are typical of the biological approach to understanding human behaviour.

Endogenous Pacemakers and Exogenous Zeitgebers Essay Plan – Document in A Level and IB Psychology

The motor enogenous controls voluntary movements. Thus, the complex cognitive demands involved in mastering a video games caused the formation of new synaptic connections in brain sites controlling spatial navigation, planning, decision-making, etc.

This suggests a relationship between brain lateralisation and the immune system. Also, patients did not always have a complete splitting of the 2 hemispheres.