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Flashcards in 9.29 Notes Deck (19):
1

Problem with PET scan

It assumes that more glucose is in that part of the brain because it needs more sugar to function, but this is flawed because some parts of the brain don't use a lot of sugar because it's high-efficiency, but that doesn't mean it's not being used

2

Regional cerebral blood flow

rCBF; Inhaling a radioactive substance; functional imaging technique; the parts of the brain using the most blood are the most active

3

Functional magnetic resonance imaging

fMRI; Functional imaging; modified MRI so it can be used to determine which part of the brain is more or less active

4

Transcranial magnetic stimulation

TMS; uses magnetic energy to deactivate or activate various brain areas

5

Transcranial direct current stimulation

TDCS; uses electricity to deactivate or activate a brain area for up to an hour

6

Functional near infrared spectrograph

fNIRS; Near infrared light is shined on your skull; different areas of the brain absorb different amounts of light; how much it is absorbed is based on the amount of oxygen in the frontal lobe

7

Wilder Penfield

The one who mapped body parts on the sensory cortex when he was doing neurosurgery on epileptic patients

8

Headaches

Pain in the blood vessels or muscles, not in the brain

9

WADA test

Performed prior to brain surgery to allow the surgeon to know which side of the brain contains the language; conducted by injecting sodium Amytal into the coronary artery, which is a fast-acting barbiturate, also known as the truth serum; whichever side you inject makes that side go to sleep; but can cause strokes

10

Rostral

Anterior

11

Caudal

Posterior

12

Contralateral

Opposite side

13

Ipsilateral

On the same side as

14

Nerve

A bundle of axons in the PNS; take info from outside and send them to spinal cord and from your spinal cord to your muscles

15

Tracts or productions

Bundles of axons in the CNS

16

Ganglia

Clumps of somas in your PNS

17

Nuclei

Clumps of somas in your brain

18

Paresthesia

False sensations; pins and needles sensation

19

PET scan

Positron emission tomography; imaging and functional technique; radioactive glucose is injected; measures the gamma ray radioactivity as it decays; Records the gamma reactivity from the brain, which is assumed that more glucose is in that part of the brain because it needs more sugar to function; not high resolution