Chapter 3-Brain

Chapter 3-Brain - Chapter 3: Biological Psychology Module...

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Chapter 3: Biological Psychology Module 3.1: The Biological Approach to Behavior 1. Measuring brain activity 1.1. Electroencephalographs (EEGs)-records electrical activity in the brain. (Captures momentary changes in activity with little precision.) 1.2. Positron emission tomography (PET) – provides a high-resolution picture of brain activity using radioactive chemicals injected into the bloodstream. (Indicates the level of activity) 1.3. Functional magnetic resonance imaging (fMRI)- uses magnetic detectors outside the head to measure the amounts of hemoglobin and oxygen in different areas of the brain. (Highly active areas of the brain use more oxygen in fMRI images.) 2. The nervous system- 2.1. Central Nervous System (CNS)-Largest part of the nervous system includes the brain and the spinal cord. It communicates with the rest of the body via the peripheral nervous system. 2.2. Peripheral nervous system (PNS)- Communicates between the spinal cord and the rest of the body through bundles of axons. 2.2.1.
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Chapter 3-Brain - Chapter 3: Biological Psychology Module...

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