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EEG/ERP Methodology > EEG (Okt 15 and 22 lectures) > Flashcards

EEG (Okt 15 and 22 lectures) Flashcards

1
Q

What does ERP stand for?

A

Event-Related Potential

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2
Q

Who studied the electrical properties of the nervous system and found evidence for fine localization of function in the cortex (by stimulating dogs–> involuntary movement)

A

Gustav Fristch & Eduard Hitzig

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3
Q

What is David Ferrier known for?

A

He stimulated dogs and monkeys and located precise areas for motor control

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4
Q

What is Richard Caton known for?

A

He measured precise activity of the brain (without stimulation) in dogs–birth of EEG (1875)

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5
Q

Who first reported alpha supression?

A

Adolf Beck

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6
Q

Who built the first EEG?

A

Hans Berger (first EEG recording in man on his own son, Klaus; also first to distinguish alpha & beta waves)

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7
Q

Who first distinguished alpha & beta waves?

A

Hans Berger

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8
Q

Who is considered to be the “father of electroencephalography”?

A

Hans Berger

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9
Q

Who pioneered the use of EEG as a diagnostic tool (reported abnormal EEG in epilepsy)?

A

Frederic Gibbs

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10
Q

Who reported the first cognitive component (CNV)?

A

Grey Walter (Contingent Negative Variation, 1964) - inspired research of ERPs

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11
Q

Who discovered the P3 component in 1965?

A

Samuel Sutton

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12
Q

Which frequency band ranges from 30-80Hz?

A

Gamma

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13
Q

Which frequency band ranges from 14-30Hz?

A

Beta

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14
Q

Which frequency band ranges from 8-13Hz?

A

Alpha

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15
Q

Which frequency band ranges from 4-7Hz?

A

Theta

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16
Q

Which frequency band ranges from 1-4Hz?

A

Delta

17
Q

What does EEG reflect?

A

Dendritic activity of synchronized neocortical pyramidal cells

18
Q

What do ERPs reflect?

A

Brain activity relative to a given point in time (stimulus or response)

19
Q

Where does the PCN wave (N2PC) originate from?

A

The ventral occipito-temporal cortex

20
Q

What is the PCN wave hypothesized to reflect?

A

Attentional selection, or suppression of interference from distractors

21
Q

Where does the LRP wave originate from?

A

Motor areas (strongest over areas contralateral to a hand/foot movement)

22
Q

What is the LRP wave believed to reflect?

A

Preparation or activation of a motor response

23
Q

Who did the first EEG recording in man?

A

Hans Berger (1929)

24
Q

What was the first cognitive ERP component?

A

Contingent Negative Variation (CNV) - Grey Walter, 1964

25
Q

What are the few advantages of ERP over fMRI and PET?

A

Excellent temporal resolution (but poor spatial), inexpensive, portable/mobile

26
Q

Order the 5 frequency bands in order from lowest Hz to highest Hz.

A

Delta (1-4), Theta (4-7), Alpha (8-13), Beta (14-30), Gamma (30-80)

EEG/ERP Methodology (4 decks)

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