bio lecture 10

Question 1

what did franz gall do?

Answer 1

observed few people with excellent verbal memories and bulging eyes

Question 2

phrenology?

Answer 2

bulges and depressions on the skull correspond to specific brain areas and specific behaviours

Question 3

3 types of staining techniques?

Answer 3

cell body stains
myelin stains
membrane stains

Question 4

what can histochemical techniques be used for?

Answer 4

locate specific neurons and neeurotransmitters

Question 5

MRI?

Answer 5

uses a magnet to observe magnetic radiation from hydrogen atoms

Question 6

FMRI?

Answer 6

measures structure and function and areas of brain that are active

Question 7

PET?

Answer 7

radioactive glucose injected into patient

Question 8

advantages of brain imaging?

Answer 8

non invasive

good spatial resolution

Question 9

disadvantages?

Answer 9

risky
poor temporal resolution
noisy

Question 10

recording electrical activity?

Answer 10

micro-electrodes placed on brain however they are highly invasive

Question 11

beta wave?

Answer 11

shows a person is actively attending events and aware

Question 12

alpha wave?

Answer 12

awake but not actively processing info

Question 13

theta wave?

Answer 13

light sleep

Question 14

delta wave?

Answer 14

deep sleep

Question 15

advantages of macroelectrodes?

Answer 15

non invasive

Question 16

disadvantages of macroelectrodes?

Answer 16

time consuming
lots of equipment
averaging activity