Psy 240 Appendix C

There atomic number 18 four re-creates of peace, stage 1 occurs when the person decides its time to fall asleep. Initially in stage 1 alpha waves start waxing and waning bursts of 8-12 Hzs electroencephalogram. This is when we are alert at our wake fullness. Stage one sleep RRG is low voltage but high frequency signal. As the stages progress into stage 2 theres a gradual increase in encephalogram voltage and decrease in EEG frequency. Stage 2 has a higher amplitude and get frequency and also has two 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 body goes through these 4 stages numerous times. It is a continuous cycle until the body fully awakes. Stage one is also the REM sleep stage and is where a person dreams. There are five common belies of dreams the first being, that external stimuli fanny become incorporated into dreams. Second , dreams last further an instant. Third, some people claim that they do not dream.Fourth, penile erections are assumed 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, very much of a sexual nature. The second is activation synthesis theory of Hobsons, he believed that during REM sleep many brain stem circuits become active and bombard the cerebral lens cortex with neural signals.He believes that a dream is the cerebral cortexs way of taking all the random thoughts and making sense of them all. I agree with Hobson, I believe that all the random events throughout the twenty-four hour period 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 dreams comprise of ran dom and often times very confusing acts. Thus is the reason why I agree with Hobson.