it is adaptive to sleep during the hours of darkness because they cannot see at night to hunt or forage. APA, mLA, chicago, research and theories of sleep. We will write a custom essay sample on Sleeping and Dreaming and Theories of Sleep specifically for you for only.38.9/page, order now, we will write a custom essay sample on Sleeping and Dreaming and Theories of Sleep specifically for you. When we are in deep sleep we are in stage four EEG sleep. An alternative ecological explanation was proposed by Webb who suggested the function of sleep was to conserve energy. Ecological theories of sleep (A01 ecological theories suggest that sleep is an adaptive behaviour which has evolved because it increases our chances of survival in some way.
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I have also had a dream that I was at my fathers funeral and when I woke up the song my dad wants played at his funeral was playing on my stereo. When falling asleep stage one is called initial stage one EEG when we return to this stage throughout the night after falling asleep it is then called emergent stage one EEG. m, ml (accessed August 29, 2018). M, (December 31, 1969). I do not agree with people that think penile erections are due to sexual dreams. There are four different stages of sleep and they are number from one to four. Also it would predict the effects of sleep deprivation would be the prey animal would get eaten. Two common theories about dreams david hume essay on miracles are that external stimuli can become incorporated into dreams, and that penile erections are commonly assumed to be indicative of dreams with sexual content, when in fact they are not.