EEG and ERP

Question 1

EEG definition

Answer 1

electroencephalography

Question 2

EEG measures what

Answer 2

voltage from post-synaptic potentials in cluster of neurons

Question 3

ERP

Answer 3

form of EEG, more time specific

Question 4

categories of brain wave data

Answer 4

beta, alpha, theta, delta

Question 5

why EEg waves are averaged

Answer 5

to get ERP

Question 6

stimulus locked components

Answer 6

P1, P2, P300

Question 7

p300

Answer 7

occurs about 300 ms after stimulus and indicates noticing an error

Question 8

N170

Answer 8

facial processing

Question 9

what do the letters P or N mean

Answer 9

time since stimulus, positive or negative

Question 10

response locked components

Answer 10

error-related negativiety
Pe component

Question 11

ERN

Answer 11

error related negativiety, response 50-150 ms after error

Question 12

anticipatory components

Answer 12

contingent negative variation, lateralized readiness potential

Question 13

Go/ No go task example of what?

Answer 13

anticipatory component

Question 14

advantages of EEG/ERP

Answer 14

can be used for rapid changes in neural responses
direct method
can measure neural response without behaviour
cheap/ non-invasive

Question 15

disadvantages of EEG/ ERP

Answer 15

medium spatial resolution, can only be reliably used for cortical activity, messy and time consuming