PSYB30H3 Lecture Notes - Transcranial Magnetic Stimulation, Magnetic Resonance Imaging, Positron Emission Tomography
Document Summary
Evidence suggests that the regular practice of mindfulness meditation makes people more receptive to positive emotions, decreases anxiety, and strengthens the immune system. Somatic nervous system- controls movement of the muscles. Autonomic nervous system- regulates smooth muscle (inner organs), cardiac muscle & glands: Sympathetic division- mobilizes energy (for flight or fight) Parasympathetic division- replenishes the body"s energy stores (salivation, digestion ) The brain is protected by a bath of cerebrospinal fluid (csf) that cushions the delicate brain and also flows through spaces in the brain called ventricles. Csf is similar to blood plasma, and is continually produced, circulated, and reabsorbed thru the brain and the ventricles. Researchers hypothesize that differences in bodily responses, brain structures, brain activity, and biochemical activity are all related to individual differences in personality. When aroused the sympathetic system responds by increasing heart rate, blood pressure, blood flow to the extremities, respiration, sweating, and muscle activity.
