Circadian rhythm sleep disorders are very disruptive to a person’s health‚ and are a common occurrence in humans. By definition‚ circadian rhythm is the cyclical 24 hour period of human biological activity where people usually sleep for eight hours and are awake for sixteen. There are two main types of circadian rhythm disorders: exogenous and endogenous. Examples of exogenous disorders include shift worker disorder and jet lag disorder. Some endogenous disorders include advanced sleep phase
Premium Circadian rhythm
consider the consequences of disrupting biological rhythms (24) A rhythm is something that is regularly repeated. All living organisms experience rhythmic changes which tend to coincide with seasonal or daily environmental changes. Most organisms have an internal biological clock called endogenous pacemakers‚ which are influences by external environmental factors called exogenous zeitgebers‚ these control periodic changes. The sleep wake cycle is a circadian rhythm that repeats itself every 24 hours
Premium Circadian rhythm Sleep
Outline and evaluate one or more biological explanations of schizophrenia (8 marks AO1/16 marks AO1) Schizophrenia is classified as a mental disorder that shows profound disruption of cognition and emotion which affects a person’s language‚ perception‚ thought and sense of self. The dopamine hypothesis states that schizophrenic’s neurones transmitting dopamine release the neurotransmitter too easily‚ leading to the characteristic symptoms of schizophrenia. This hypothesis
Premium Schizophrenia Psychosis Mental disorder
Describe and evaluate one or more biological explanations of schizophrenia Research has shown that schizophrenia is heredity and can runs in families. This suggests that genes play a significant role. The closer the genetic relationship the more likely the people are to share the disorder. Evidence from family studies by Gottesman showed that when bothparent are schizophrenic then there is a 46% chance of the child getting it‚ however‚ if only one parent had it‚ it dropped to 17%. This suggests
Premium Schizophrenia Dopamine Antipsychotic
1. Describe how circadian rhythms are associated with sleep deprivation. 2. Explain the results of the sleep deprivation assessment. 3. Do you agree‚ or disagree‚ with the results. Why‚ or why not? 4. If you are sleep deprived‚ what steps could you take to get more or better quality of sleep? Alternatively‚ if you are not sleep deprived‚ what techniques allow you to get quality sleep most nights of the week? Circadian rhythms: Their role and dysfunction in affective disorder Press
Premium Sleep Circadian rhythm
Discuss the role of endogenous pacemakers and exogenous zeitgebers in the sleep/wake cycle and one other rhythm (24) Siffre (1975) dedicated 6 months of his life to be spent isolated in an underground cave in Texas. During which‚ he was exposed to only artificial light‚ and was given no natural exogenous zeitgebers. This meant that his biological rhythms were subject to free running‚ whereby the body has to dictate its own resources and has no external aid‚ such as natural light or social norms
Premium Hypothalamus Circadian rhythm
Discuss biological factors in the formation and development of gender roles. As people grow older they began to develop more complex ideas about gender. This includes their sense of gender identity as well as their knowledge of gender roles. Gender identity is one’s sense of being male or female. By the age of two‚ most children can correctly label their own or another person’s sex or gender. Between the ages of 3 1/2 to 7‚ children grasp be at the idea that a person’s biological characteristics
Premium Gender Sex Gender role
Discuss two biological explanations of depression (8+16 marks) AO1: One biological explanation for depression is family studies. Family studies have proved that having a first-degree relative with depression appears to be a risk factor of depression. These studies select people who already have the depression (the probands) and examine whether other members of their family have been‚ or might be diagnosed with depression. Research has found that around 20% of such relatives have depression compared
Premium Major depressive disorder Serotonin Bipolar disorder
Chemical Control Chemical pesticides are substances that are manufactured in laboratories that‚ when applied to crops‚ reduce the vitality of pest populations while leaving crops unharmed. There are many chemicals available to help eradicate common pests in a number of ways. Chemical controls can kill pests that come in contact with the chemical (toxicants)‚ eliminate the reproductive potential of pests (sterilants)‚ disrupt their developmental potential (growth regulators) or influence their behaviour
Premium Biological pest control Pest control
Discuss one or more socio-psychological explanations of aggression. (24 marks) Social learning theory (SLT) is just one of the few theories that attempt to explain aggression‚ in regards to social psychology. SLT implies that all behaviours are learned‚ and that is by watching‚ or ‘observing’ others. Therefore children learn aggressive behaviours by observing others aggressive behaviours. However‚ it is not that simple. For a child to learn this‚ they must first notice a potential role model
Premium Observational learning Aggression Albert Bandura