EEG Signal Processing Quiz

What are the positions of EEG electrodes?

• region of interest

• 12-30 systems

• 10-20 systems

What does it mean when EEG signals are assumed to be stationary?

• The signals are always linear

• The statistical properties do not change with time

• The signals are always deterministic

What is the significance of P300 in EEG analysis?

• It relates to the subject's ability of attention

• It is the first positive component

• It is not related to attention

What is the latency of N400?

• About 200 ms

• About 300 ms

• About 400 ms

What is the frequency range of Visual Evoked Potential (VEP)?

• 1 to 300 Hz

• 100 to 2000 Hz

• 0.1 to 3 Hz

What is the response of N100?

• It is the response to stimulus perception

• It is the response to motor activity

• It is not related to any stimulus

What is the significance of ERD/ERS in EEG analysis?

• It is evoked in contralateral/ipsilateral motor cortex preceding voluntary movement

• It is not significant

• It is only related to auditory stimuli

What is the frequency range of ERD in the contralateral motor cortex just before movement?

• 10-12 Hz

• 14-18 Hz

• 36-40 Hz

• 0-5 Hz

What is the purpose of downsampling in EEG data processing?

• Reduce file size

• Increase file size

• Add noise

• None of the above

What is the function of a bandpass filter?

• To remove all frequencies

• To allow a specific range of frequencies

• To amplify all frequencies

• None of the above