Abnormal Psychology: What Are Nightmares?

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Nightmares are a vivid type of dreams, and they are defined scientifically and psychologically. Several individuals experience nightmares, which are dreams that are usually frightening and unpleasant that cause a person to awaken, and often happen during REM sleep. According to Hartmann, a psychoanalyst and sleep researcher, nightmares prefer to appear within one of the late stages of REM sleep that happen during the early morning between four and seven AM, and usually last between five to thirty minutes (qtd. in McNamara 2008). The emotions and the images associated with nightmares might follow these individuals during the day or even for years, and it might affect their health, as well. Nightmares can cause serious consequences for health …show more content…

Some others will have artificial insomnia since they are awakened by their nightmares, so they cannot go back to sleep again. Moreover, if a person is more empathetic and more in tune with their surroundings, nightmares might be occurred into their sleep. There are also two dramatically various sorts of nightmare experience on both the neurophysiological and the subjective psychological level, one of which takes place in REM sleep and the other during stage four. It has been demonstrated that nightmare dreams happen during all sleep stages. “However, the most severe type of nightmare experience is confined to the deepest stage of non dreaming sleep; stage 4” (Kellerman 1987). In addition, these nightmares reflect on disturbing dreams that also represent a failure of normal dreaming activities. Nightmares have no certain purpose in themselves because they are inappropriate byproducts of a further normal dream process that goes awry (McNamara 2008). Nevertheless, nightmares are still a universal human experience, and they are one of the less understood with the aspect of psychological phenomena because they have existed for a long …show more content…

Because dreaming appears to be biologically designed into the brain, it is assumed that the humankind's ancestors dreamed, and the brain that the ancestors had was exactly as this generation's mind. According to Revonsuo, a Finnish cognitive neuroscientist, psychologist, and philosopher of mind, individuals' ancestors had such dreams, and they transfer them to this generation because they were necessary narratives in the struggle to survive (2011). Ancestors were also living in an environment that was full of all sorts of fatal dangers. McNamara illustrates that nightmares indicate the ancient sensitivity of these populations to those ancestral males who participated in an attack against neighboring tribes (2008). In fact, this illuminates that even though this generation does not live or experience ancestors’ situations, human in our modern days face and share the same dreams. In addition, many individuals think that what causes recurrent nightmares is some type of haunted past or emotional shock, which is actually not the main reason. The reason is, however, the equation between NREM and REM sleep amounts the sleeper faces on a nightly basis. McNamara explains that dreamers with repetitive nightmares have a quantifiable increase in REM sleep and decrease in slow wave sleep (SWS), so that

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