Psy 240 Appendix C

There atomic number 18 four tips of sleep, stage 1 legislates when the psyche decides its time to fall asleep. Initially in stage 1 alpha waves start waxing and waning bursts of 8-12 Hzs pneumoencephalogram. This is when we are alert at our wake fullness. Stage one sleep RRG is broken voltage but high frequency signal. As the stages progress into stage 2 theres a gradual increase in EEG voltage and decrease in EEG frequency. Stage 2 has a higher amplitude and lower frequency and also has twain wave forms, k complexes and sleep spindles.Stage 3 is Delta waves, which are the largest and slowest EEG waves. Stage 4 is essentially the predominance of delta waves. Throughout the night the automobile trunk goes through these 4 stages numerous times. It is a continuous cycle until the personate fully awakes. Stage one is also the REM sleep stage and is where a person dreams. There are five common belies of dreams the outset being, that external stimuli can become incorporated into dreams. Second, dreams last only an instant. Third, somewhat people claim that they do non dream.Fourth, penile erections are anticipate to be related to sexual dreams. And lastly, sleepwalking and sleep talking occur only when dreaming. There are two theories related to dreams, the first being Freuds theory. He believes that dreams are triggered by unacceptable repressed wishes, frequently of a sexual nature. The second is activation synthesis theory of Hobsons, he believed that during REM sleep many brain stem circuits become industrious and bombard the intellectual cortex with neural signals.He believes that a dream is the cerebral cortexs way of taking all the haphazard thoughts and fashioning sense of them all. I agree with Hobson, I believe that all the hit-or-miss events throughout the day put together the dream. Freuds theory does not seem legitimate to me because not everyone has negative or unacceptable wishes nor is every dream a sexual. More often than not my dre ams comprise of random and often times very confusing acts. Thus is the reason wherefore I agree with Hobson.