PSYC 1010 Lecture Notes - Lecture 6: Magnetic Resonance Imaging, Transcranial Magnetic Stimulation, Functional Magnetic Resonance Imaging

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15 Nov 2017
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Crash course Nero Transmitters & Brain (The Chemical Mind- Crash Course Psyc #3)
Everything Psychological is Biological
THE BRAIN!! Central Nervous System
Electroencephalogram (EEG)- electrodes on scalp measure waves of electrical
activity
Position Emission Tomography (PET)- Visual of location of radioactive glucose
when brain performs
Magnetic Resonance Imaging (MRI)- Pictures of Brain anatomy with magnetic
field
Functional MRI- Successive MRI’s compared to show brain activity as evidence
by increased O2 in blood flow
Study of the Brain: Methods
Electrical Stimulation of the Brain
Transcranial Magnetic Stimulation
Lesions (Typically Post mortem)- Rare surgically induced to alter the way that
part of the brain works.
Brain Structure:
Spinal Cord
Brain-body communication
HINDBRAIN (Back & Base)- one of the first areas to develop. Damage to this area may
cause death or needed life support.: Survival Functions (Breathing)
Medulla (Brain stem)- Heartbeat, breathing & reflexes; crossover point
Pons (swollen area on the Medulla)- Sleep & Arousal
Cerebellum (area above/behind the Medulla and Pons)- Voluntary
movement & coordination; nonverbal learning & memory, time orientation
MIDBRAIN (not very middle)- Voluntary Movement (More behind the Hindbrain)
Contains many dopamine releasing neurons
Controls voluntary movement Parkinson’s disease- decrease in
dopamine
Contains the reticular formation which works with reflexes, breathing, and pain
as well as sleep and arousal; also clarifies come communication
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