PSY 102 Chapter Notes - Chapter 13: Magnetic Resonance Imaging, Reticular Formation, Limbic System
27 Apr 2016
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Document Summary
Electroencephalogram (ecg): an amplified recording of the waves of electrical activity that sweep across the brain"s surface. The technique depicting the level of activity of brain areas by measuring the brain"s consumption of glucose is called positive emission tomography (pet) A technique that produces clearer images of the brain by using magnetic fields and radio waves is known as magnetic resonance imaging (mri) The oldest and innermost region of the brain is the brainstem. At the base of the brainstem, where the spinal cord enters the skull, lies the medulla: controls breathing and the heart. Above the medulla is the pons, which helps to coordinate movement. Nerves from each side of the brain cross over to connect with the body"s opposite side in the brainstem. At the top of the brainstem sits the thalamus, which serves as the brain"s sensory switchboard, receiving information from the senses except smell, and routing it to the regions dealing with those senses.
