At the beginning of my reading, the chapter firstly talked about consciousness and the different states there are while we are aware of ourselves and our environment. Some states of consciousness are sleeping, waking, daydreaming, orgasms and even hypnosis. The fist states covered were sleep and dreams and the biological and psychological aspects it has on the humans. As I read on, I learned that our bodies biologically have rhythm which influences our functioning and synchronizes with the 24 hour day and night cycle called the circadian rhythm.
Our body temperature raises during the morning, peaks at mid-day and progressively drops in late afternoon until we fall asleep again. I learned Light can also effect or circadian rhythm because as light approaches it triggers protein cells in the retinas that sent signals to the suprachiasmatic nucleus (SCN) in the hypothalamus which regulates body temperature. The SCN also causes the pineal to decrease the production of a sleep hormone called melatonin in the morning and increase its produntion in the evening.
As I continued the chapter progressed to the different stages of sleep and the biological rhythm of or sleep. Researchers use electroencephalograph (EEG) to observe the brain waves and patters that occur while you sleep. About every 90 minutes we go through different stages of sleep. While you are awake and relaxed the EEG detects alpha waves but while you sleep the EEG detects different waves for each different stage.
One interesting fact was that we never recall the moment we fall sleep and as I read I tried to recall moments when I went to sleep the night before, indeed I could not remember the point at which my mind had fallen asleep; I could only recall getting into bed, the dream I had and waking up in the morning. While we sleep we undergo and interesting thing, rapid eye movement sleep (REM sleep). At this point we are dreaming and our brain fires signals to may sensations at a time. We dream less than half of the time we sleep, that is occupied by the non-rapid eye movement which are the other stages of our sleep other than REM.
One thing I wondered was do we have many different dreams while we fall in and out of REM sleep or do we have connected dreams of separate REM cycles? But dreaming is only half of the phenomenon of sleep, further discoveries and theories were mad about why we sleep and the consequences of losing it. The chapter went on to discuss the importance of sleeping 7. 5 to 9 hours a day. Sleep can help boost our immune system so getting a lot of sleep held fight against illnesses. The function of sleeping also accounts for many other beneficial needs. ) it protects- as our ancestors hunted by day, they knew to sleep in the safety of a cave and not become the hunted by night. 2)sleeping recuperates- as we sleep the brain repairs its own tissues so getting a lot of sleep means better neural fibers! 3) sleeping makes memories- it rosters and rebuilds fading memories of days experience like an upcoming pre-calculus test you studies fro. 4) sleeping feeds our creative thinking- dreams have become the inspiration of many noteworthy masterpieces and literature including the best-selling book and box office hit Twilight.
And finally, 5) sleeping may play a role in our growth process- while we sleep the pituitary gland releases hormones that effect our growth and age; think about it the less sleep we get the baggy and aged we look. The last topic of the chapter was about dreaming, what we dream and why we dream. Dreams are a series of mental images and emotions occurring during sleep and they can reveal a lot about ourselves. Freud believed that dreams are a way to expose our socially unacceptable feelings and had many underlying content to them.
He believed that the latent content of a dream is the hidden psychological meaning of the dream. He also believed that the content of dreams is related to wish fulfillment and suggested that dreams have two types of content: manifest content and latent content. The manifest content is the actual literal subject-matter of the dream, while the latent content is the underlying meaning of these symbols. Even though psychologists argues with Freud theories, without his theories they wouldn’t be able to give way of other theories.
Cite this Psychology of Sleep
Psychology of Sleep. (2016, Nov 05). Retrieved from https://graduateway.com/psychology-of-sleep/