PSY 150A1 Lecture Notes - Lecture 4: Magnetic Resonance Imaging, Telepathy, Anterograde Amnesia

• School: University of Arizona
• Department: Psychology Main
• Course: PSY 150A1
• Professor: Adam Lazarewicz

Document Summary

Morphine = pain killing, mood elevating drug. Inject rats with morphine + radioactive tracer. Neurotransmitter receptors for morphine exist in brain areas linked to pain, mood. Response to pain, exercise, excitement, sex, love, etc. Mimic neurotransmission effects due to similar structure (e. g. morphine and endorphins) Similar enough to occupy receptor (block actual neurotransmitter), but not similar enough to activate next neuron (e. g. curare - poison dart) Or may prevent release of a neurotransmitter (e. g. botox) Techniques that image the structure and/or function of the brain. Low spatial resolution: does not show precise location of activity. Inject radioactive glucose track glucose use in brain. Neurons use more glucose when active glucose delivered to most active areas. Uses 2 magnetic fields to take pictures of structure. Detects blood flow in the brain oxygen delivery structures woking. What can we do with this hardest. Older parts: lower level structures, responsible for basic survival mechanisms (hindbrain)