PSYC 101 Chapter Notes - Chapter 9: Leptin, Scale-Invariant Feature Transform, Orexin
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9. 4 how do biology and environment interact in our sleep patterns: everyone sleeps a different number of hours and in different ways. Immune system: decreased production of immune cells; increased risk of viral infections, such as colds, fat cells, joints, heart. Increased risk of high blood pressure: stomach. Increase in hunger-arousing ghrelin; decreased in hunger-suppressing leptin: muscles, reduced strength; slower reaction time and motor learning, sleep disorders. Rem sleep to be deeply biological: remember: biological and psychological explanations of behavior are partners, not competitors. Dreams preserve sleep and provide a (cid:862)ps(cid:455)(cid:272)hi(cid:272) safet(cid:455) (cid:448)al(cid:448)e(cid:863) expressing otherwise unacceptable feelings; contain manifest (remembered) content and a deeper layer of latent content (a hidden meaning) Drea(cid:373)s help us sort out the da(cid:455)"s e(cid:448)e(cid:374)ts and consolidate our memories. Regular brain stimulation from rem sleep may help develop and preserve neural pathways. Neural activation rem sleep triggers neural activity that evokes random visual memories, which our sleeping brain weaves into stories.
