The other major neurotransmitter, dopamine, controls movement and posture. The loss of dopamine in certain parts of the brain causes muscle rigidity, a symptom typical of Parkinson’s disease. The effect of dopamine mirrors that of adrenalin – its release causes …
The only effect of cocaine that can be viewed as a positive is the weight loss. Unfortunately, many users are addicted to the drug for this reason. Models who are under a lot of pressure to be thin and stay …
This assignment will investigate the factors that influence the successful inclusion of children with attention deficit hyperactivity disorder (ADHD) in the Early Years. In particular the impact of the challenging behaviour of these children will be explored and how this …
The arousal level can be thought of as how much capacity you have available to work with. The concept of arousal relates to the activities of the ANS, this is also known as the Automatic Nervous System. The automatic nervous …
Patterns of behavioural and physiological activity in most organisms vary in a cyclical way. A circadian rhythm is a bodily rhythm that lasts about 24 hours. Other bodily rhythms can be infradian (lasting more than 24 hours) or ultradian (lasting …
The infradian rhythms are rhythms that last longer than a day for example the human menstrual cycle, which occurs over a 28-day cycle. Research into infradian rhythms includes a study by Reinberg (1967); this study involved a woman spending 3 months …
Sleepiness is certainly associated with such sleep disorders as sleep apnea and narcolepsy, but it is also a phenomenon that ‘intrudes’ into the waking state of ‘healthy sleepers’, who may or may not have experienced some loss to their normal …
Horne (1998) argues that there are two modes of sleep, “Core” and “Optional” sleep. Core sleep refers to an essential component, that is; necessary for the maintenance of normal psychological performance; made up largely by delta electroencephalonographic (EEG) activity, or …
Discuss two of the following methods that have been used to investigate areas of cortical specialisation in the brain: post-mortem examinations, EEG and scanning techniques (10 marks) A method of investigation of cortical specialisation simply addresses the technique/s in which the …
A circadian rhythm is a biological rhythm that runs on a roughly 24 hour cycle. One example is the sleep/wake cycle. Humans sleep about 8 out of 24 hours. Even under constant light conditions, animals keep a circadian rhythm (e.g. …
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