Chapter 1: Basics of Behavior

Question 1

what is histology?

Answer 1

the study of microscopic structures and tissues that provides the means for observing structure, organization, and connections of individual cells

Question 2

what do PET scans visualize?

Answer 2

PET scans show patterns of brain activation but not information about structure, a radioactive chemical is injected into the blood to measure glucose metabolism in the brain

Question 3

how do MRIs work?

Answer 3

MRIs use magnets to align hydrogen ions in the body and a radio pulse makes those ions spin, when the pulse stops and the hydrogen ions ”relax” they emit a radio frequency we can detect

Question 4

what do fMRIs visualize?

Answer 4

fMRIs track cerebral blood flow, when more blood is in a brain area then that area is more active

Question 5

what does DTI visualize?

Answer 5

tracks the flow of water in white matter fiber pathways of the brain