Chapter 1: EEG; Sensory & Cognitive
ERPs Exam Questions and Answers
100% Pass
electroencephalography (EEG) - ✔✔• non invasive technique used to explore normal &
abnormal brain activities
• used since 19th century
• diff from the so-called imaging techniques, such as fMRI or PET scan, but has its
advantages
- why it's still in use today
describe principle behind electroencephalography (EEG) - ✔✔• to produce
electroencephalogram, several disk-shaped electrodes (~ half size of dime) placed on
scalp in standardized manner to allow "descriptive localization" of diff activities &
comparisons b/w subjects & experiments
• generally recorded from several electrodes (32-256)
Katelyn Whitman, All Rights Reserved © 2025 1
, - contact b/w scalp & electrodes uses special gel
what is the historical origin of the EEG? - ✔✔• in 1875, Richard Caton recorded
electrical phenomena on exposed cerebral hemispheres of rabbits & monkeys
• in 1890, Adolf Beck found spontaneous electrical activity of brain of rabbits & dogs
that included rhythmic oscillations altered by light → brain waves
• in 1912, Vladimir Vladimirovich Pravdich-Neminsky recorded 1st animal EEG &
evoked potential of dog
• in 1914, Napoleon Cybulski & Jelenska-Macieszyna photographed EEG recordings of
experimentally induced seizures
• in 1924, Hans Berger recorded 1st human EEG
- expanding on work previously conducted on animals by Richard Caton & others,
Berger also invented electroencephalogram (giving the device its name)
• in 1934, Fisher & Lowenback 1st demonstrated epileptiform spikes
Katelyn Whitman, All Rights Reserved © 2025 2
ERPs Exam Questions and Answers
100% Pass
electroencephalography (EEG) - ✔✔• non invasive technique used to explore normal &
abnormal brain activities
• used since 19th century
• diff from the so-called imaging techniques, such as fMRI or PET scan, but has its
advantages
- why it's still in use today
describe principle behind electroencephalography (EEG) - ✔✔• to produce
electroencephalogram, several disk-shaped electrodes (~ half size of dime) placed on
scalp in standardized manner to allow "descriptive localization" of diff activities &
comparisons b/w subjects & experiments
• generally recorded from several electrodes (32-256)
Katelyn Whitman, All Rights Reserved © 2025 1
, - contact b/w scalp & electrodes uses special gel
what is the historical origin of the EEG? - ✔✔• in 1875, Richard Caton recorded
electrical phenomena on exposed cerebral hemispheres of rabbits & monkeys
• in 1890, Adolf Beck found spontaneous electrical activity of brain of rabbits & dogs
that included rhythmic oscillations altered by light → brain waves
• in 1912, Vladimir Vladimirovich Pravdich-Neminsky recorded 1st animal EEG &
evoked potential of dog
• in 1914, Napoleon Cybulski & Jelenska-Macieszyna photographed EEG recordings of
experimentally induced seizures
• in 1924, Hans Berger recorded 1st human EEG
- expanding on work previously conducted on animals by Richard Caton & others,
Berger also invented electroencephalogram (giving the device its name)
• in 1934, Fisher & Lowenback 1st demonstrated epileptiform spikes
Katelyn Whitman, All Rights Reserved © 2025 2
