Discuss evolutionary explanations of sleeo
It has been suggested that intelligence is an evolutionary adaptation for solving social problems the most intelligent species are the social animals, which are bees, parrots, dolphins, elephants, wolves, monkeys, etc. Discuss evolutionary explanations of human aggression one evolutionary explanation of human aggression is sexual jealousy infidelity triggers sexual jealousy which is an evolved adaptive response to infidelity men have developed many strategies from vigilance to violence to stop their partner committing adultery. A more evolutionary explanation that has been proposed by some people is that dreams may be a kind of mental simulation of potential real-life threatening events, allowing for a kind of safe “dry run”, and the testing and analysis of possible responses and mental schemas. Evolutionary psychology is a theoretical approach to psychology that attempts to explain useful mental and psychological traits—such as memory, perception, or language—as adaptations, ie, as.
In evaluating restoration explanations of the function of sleep, it is key to point out that many animals that are largely inactive, sleep for extended periods of time, such as the giant sloth which sleeps 20 hours despite its low energy expenditure. Evolutionary explanations of the function of sleep what is the evolutionary approach • we know that sleep must be adaptive in some way, otherwise why do all animals do it despite substantial costs • either it provides some vital biological function, or it provides some other benefit • the evolutionary explanations aim to suggest what other benefits might be associated with sleep. Empson criticised evolutionary theories as they don't explain things such as the 5 stages of sleep, why we die when sleep deprived and why humans sleep even when we have artificial light and no predators. Discuss the alternative argument to the accidental nature of uxoricide and state why it may be an intentional act discuss the problem for the evolutionary argument in that not all men act the same way in the same situation.
The restoration theory says we sleep to restore the body’s ability to function at the end of the day oswald said that short-wave sleep (sws) is for restoring the body in terms of physical activity, whilst rem sleep is for resting the brain functions. Deep sleep - often appearing in the first part of the night, deep sleep is as close to coma as we get also a time of massive rewiring, deep sleep is when growth hormone is pulsed out into the blood. Evolutionary psychologists suggest that sleep patterns of different species may have changed and evolved over time to become more adaptive for that species for example, cats sleep for up to 16 hours per day whilst humans sleep for around 8. The first element of the evolutionary explanation is that it is necessary for energy conservation mammals expend a large amount of energy to maintain a constant body temperature, and it is suggested that sleep is a time of enforced inactivity which conserves energy. Evolutionary psychologists confer et al argue that evolutionary psychology fully accepts nature-nurture interactionism, and that it is possible to test the theories in order to distinguish between different explanations.
One of the very first explanations as to why we sleep comes from a manuscript written in 350bc called on sleep and sleepiness, from the famous ancient greek philosopher aristotle aristotle thought that sleep was a necessary process to separate the blood after the body digested food. • it should provide a plausible explanation as to why sleep is found in such a variety of different animals • it should explain the findings of research of evolutionary theories of sleep evolutionary theories in general suggest that sleep evolved because it allows an organism a greater chance of survival in a. Evolutionary explanations: functions of sleep study rem sleep appears to have eveolved over 50 million years in bird and animals it might be that nrem evolved first for energy conservation whereas rem might have evolved later to maintain brain activity explanained by the greeter need for rem sleep in infants whose brains are developing.
Discuss evolutionary explanations of sleeo
The cognitive approach in psychology is a relatively modern approach to human behaviour that focuses on how we think it assumes that our thought processes affect the way in which we behave. Outline and evaluate one or more evolutionary explanations for the functions of sleep (24) intro: behaviors evolve, develop if they provide selective advantages for the animal sleep=evolved into an essential behavior and serves an adaptive purpose in the eea. Theories of sleep bullets the theories that are used the most to explain why people and animals sleep are restoration theory and ecological/evolutionary theory ie protection theory and conservation theory.
- Ao1 – conserve energy the evolutionary explanation suggests that sleep serves numerous adaptive functions one adaptive function is that it helps to conserve energy mammals need to expend energy to maintain constant body temperature, animals with high metabolic rates need to expend more energy (eg mice) in this sense, sleep serves the purpose of conserving.
- An evolutionary theory of dreaming it’s hand in hand it’s impossible to discuss the significance of dreaming without nodding to the need to make meaning from these experiences study of the normal dreaming brain suggests that dreaming is a type of consciousness or wakefulness rather than sleep evolution of the brain suggests even.
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Warm-blooded animals (mammals), such as ourselves need to expend a lot of energy to maintain a constant body temperature sleep, however, serves the purpose of providing a period of enforced inactivity (therefore using less energy) much as hibernation is a means of conserving energy. Outline and evaluate restoration explanations of the functions of sleep (4 marks + 16 marks) the restoration explanation to explain sleep proposed by oswald (1980) suggests there are 2 functions sws to enable body repair, and rem to enable brain recovery. Evolutionary explanations:• look at different species to determine keysleeping features• amount of sleep is affected by differentfactors:- predator/prey- safe place to sleep- body & brain size- metabolic rate. In order to evaluate the threat simulation theory of dreaming (of the kind found in rem sleep), it is useful to discuss it in an evolutionary context, and consider whether dreaming meets the necessary requirements of evolution by natural selection namely, genetic variation, inheritance, and differential fitness.