PSYCH 101 Chapter Notes - Chapter 3.2: Robert Mccarley, Circadian Rhythm, Prefrontal Cortex
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PSYCH 101 Full Course Notes
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Every dreams unless a brain injury or medication interferes. We dream during both rem and non-rem: but the content of the dreams differ. Rem dreams are more likely to be bizarre: may involve intense emotions, visual and auditory hallucinations (rarely taste, smell, or pain) and uncritical acceptance of illogical events. Non-rem dreams feel normal like every-day life: may concern ordinary activities like deciding what clothes to wear or taking notes in class. Content of rem dreams results form activation of brain structures associated with motivation, emotion, and reward (amygdala) in addition to the visual association areas. Prefrontal cortex (necessary for processing self awareness, reflective thought and conscious input form external world) is less activated. As a result, brain"s emotion centers and visual association areas interact without rational thought. Disconnection between feelings and logic contributes to wilder images in rem dreams. There is virtually no support that exists for freud"s ideas though.
