In this experiment the independent variable would be whether the children responded to the genitals of the doll or not; the dependent variable would be based on the observed result of the independent variable.
Chapter Five — Question ONE: Biological clocks are the drivers for circadian rhythms, according to the National Institutes of Health. The biological clock in a human is groupings of interacting “molecules in cells throughout the body” (www.nigms.nih.org). The nerve cells in the brain are called the “suprachiasmatic nucleus” (SCN).
Question TWO: Flying from California to New York the passenger loses three hours, so when she wakes up the next day at 7:00 A.M., her body feels like its 4:00 A.M. (that is being “out of sync” — a sensory processing disorder).
Question THREE: If a person looks at the passage from Ecclesiastes philosophically, then modern science doesnt even need to weigh in. The truth is that in a persons lifetime, at some point it will be right (“to everything there is a season”) to pursue any goal, any dream (“for every purpose under heaven”).
Question FOUR: Estrogen and progesterone are hormones that have a powerful effect on a womans mental state during the menstrual cycle. The mood swings happen when the serotonin levels change in the brain.
Question FIVE: The REM sleep period is the time during which humans have their dreams. REM relies on the pons sending signals to the thalamus, which then sends signals to the cerebral cortex — the outer layer of the brain that is takes care of thinking learning, and organizing information that humans need. There are still questions that havent been answered regarding why we dream and what the reasons are that we have certain themes in dreams. Freud believed that dreams revealed psychological problems and issues, and he may have been right.
National Institute of General Medical Sciences. (2010). Circadian Rhythms — Keeping Time.
Retrieved May 16, 2010, from Http://www.nigms.nih.org.