Ultradian rhythms are biological rhythms that occur more than once every 24 hours. The stages of sleep are a well researched example. They are controlled endogenously and are measured on an electroencephalograph (EEG). In stage one, theta waves of low …
Research into the causes of disruptions of biological rhythms, such as the sleep-wake cycle, have focused on the effects of shift work and jet lag. Researchers have found that disruptions in our sleep-wake cycle can result in both mental and …
Human reproductive behaviour is an evolutionary approach as it tries to explain behaviour from the point of view of how it has evolved. Sexual selection is the process in which a species changes over time as a result of the …
Mirror Neurons which are activated when we do an activity or we perceive others to do the same. Mirror neurons fire when they receive information and when they generate information to produce an action. This indicates biological evidence that someone …
Homeostasis is a neural mechanism that detects whether or not the body has enough nutrients and if it does not, how to restore the nutrients. Homeostasis works on a negative feedback loop; this is because the time taken to eat …
This essay describes depression and the various ways that it has been treated throughout the years. Statistics show that most people who have had severe depression in their life have a 50-80% chance of it returning. The side effects of …
Depression is a psychological disease that ranges from the mild to manic and is almost always treated chemically. Conventional treatment consists of drug therapy (tricyclic antidepressants), hospitalisation (if suicidal), and electroconvulsive therapy. There are four sets of symptoms that can …
Stressors are events that throw the body out of balance and force it to respond triggering the stress response. Stress management is the attempt to cope with the effects of the stressor through the reduction of the stress response. This …
Outline and evaluate two theories relating to the functions of sleep The 1st theory I have chosen to look at is the problem solving theory the thinking being it is basically when you are asleep you dream, and these dreams may …
The superego which develops from eighteen months and onwards is governed by the morality principle, this is our conscience. Freud believed that our personality fully developed by the age of six. The approach suggests that if the Id is dominant …
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