It is also an important stage in adulthood as it also enables protein synthesis and cell growth to take place; this is vital to the restoration of bodily tissue as it is very fragile and needs constant renewal. Sassin et al (1969) found that when sleep-waking cycles are reversed by 12 hours such as going to sleep in the morning and waking up at night, the release of GH with sleep is also reversed. This shows that GH release is controlled by neutral mechanisms related to SWS. This study is supported by research from Van Cauter and Plat (1996) they found that the amount of GH released correlates with the amount of SWS.
Further and more recent research from Van Cauter (2000) showed that the decline of GH in older aged people has also been associated with reduced SWS. This gives credibility and reliability to Sessin’s research however his research was a field study therefore extraneous variables could not be controlled, this study could also not be repeated as the conditioning would change each time due to environmental factors. But this study is high in ecological validity and internal validity as it met its aims in investigating GH release during SWS.
Kruger et al (1985) found that lack of SWS has also been associated with reduced functioning of the immune system; antibodies are regenerated during cell growth and protein synthesis, this also adds reliability to the restoration theory of sleep. During REM sleep our brain grows, Siegel (2003) showed that brain growth the amount of REM sleep in any species is proportional to the immaturity of the offspring at birth for example the baby platypus is immature at birth and has about eight hours of REM sleep per day, whereas the dolphin which can swim from birth has almost no REM sleep.
The Term Paper on The study of design research methodology
Abstract Studies on design research methodology are infrequent, although there is a consensus that more e ort is needed for improving design research quality. Previous calls for exercising better research methodology have been unsuccessful. As numerous studies reveal, there is no single scienti c methodology that is exercised in science or in any other research practice. Rather, research ...
This research suggests that there is a relationship between neural development and REM sleep, however this study has been criticised as it is an animal study therefore it cannot be representative of humans, also dolphins are uni-lateral which means they sleep one hemisphere of the brain at a time this is substantially different to human sleep. Siegel and Rogawski (1988) suggested that REM sleep allows for a break in neurotransmitter release which in turn permits neurons to regain their sensitivity and allow the body to function properly.
Support from this study comes from the action of antidepressant drugs such as MAOIs; these drugs increase neurotransmitter levels in dopamine and serotonin. This gives the Study empirical support as it has scientific proof this coincides with the biological approach which states all behaviour is biological and chemical and can therefore be inherited through genes , however this does not take into account individual differences as no one person is the same therefore they may have a different experience.
Crick and Mitchison (1983) proposed that during REM sleep unwanted memories are discarded thus making more important memories accessible. Recent research from Stickgold (2005) shows that REM sleep may be important in the consolidation of procedural memory, whereas SWS sleep is important for consolidation of semantic memory and episodic memory. Sleep has an important restorative effect therefore sleep deprivation has a significant effect. Shapiro et al (1981) found that runners in a marathon race slept for about an hour more on the two nights following the race.
SWS increased in particular which fits the view that NREM sleep appears to be more associated with physical recovery therefore when we lack sleep we also lack recovery this means that our body will need to sleep in SWS for longer to make up for restoration time. However research from Horne and Minard (1985) does not support this view as their research showed that doing exhausting exercises makes you fall asleep faster but not for longer.
The Research paper on Project topics – Journal of Engineering Research and Studies
Journal of Engineering Research and Studies E-ISSN0976-7916 Research Paper SEPARATION OF OIL AND PECTIN FROM ORANGE PEEL AND STUDY OF EFFECT OF pH OF EXTRACTING MEDIUM ON THE YIELD OF PECTIN Shekhar Pandharipande*a, Harshal Makodeb Address for Correspondence *a- Associate Professor, Department of Chemical Engineering, Laxminarayan Institute of Technology, Rashtrasant Tukdoji Maharaj Nagpur ...
