PSYCH 101 Chapter Notes - Chapter 6: Magnetic Resonance Imaging, Functional Magnetic Resonance Imaging, Positron Emission Tomography
13 Mar 2017
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Document Summary
Brain is 2% of body weight but eat up 20% of our calorie intake. Electroencephalogram (eeg) - an amplified recording of waves of electricity in the brain. Pet scan (positron emission tomography) - visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task. Mri (magnetic resonance imaging) - using magnetic fields and radio waves to produce computer generated images of soft tissue. Fmri (functional mri) - a technique for revealing bloodflow and therefore brain activity by comparing successive mri scans. Brainstem - the oldest part and central core of the brain, beginning where the spinal cord swells as it enters the skull; the brainstem is responsible for automatic survival functions. Medulla - base of brainstem; controls heartbeat and breathing. Thalamus - pair of egg shaped structures that is the brain"s sensory control center except for smell.
