BCIA Neurofeedback & EEG

Question 1

Which EEG frequency band is associated with relaxed, awake states and is often targeted for amplitude increase in neurofeedback?

Accepted Answer

Alpha (8–12 Hz)

Answer

Alpha waves predominate during relaxed wakefulness with eyes closed, and increasing alpha amplitude is a common neurofeedback protocol for stress and anxiety.

Question 2

Sensorimotor rhythm (SMR) is typically found in which frequency range?

Accepted Answer

12–15 Hz

Answer

SMR is a 12–15 Hz rhythm recorded over the sensorimotor cortex that is associated with motor inhibition and calm, focused states.

Question 3

In the International 10-20 system, the electrode labeled 'Cz' is located at which position?

Accepted Answer

Vertex (midline central)

Answer

Cz is positioned at the vertex, the midpoint of the scalp along both the anterior-posterior and left-right axes.

Question 4

Which neurofeedback protocol is most commonly associated with ADHD treatment?

Accepted Answer

Theta suppression + beta enhancement

Answer

ADHD neurofeedback typically involves suppressing excess theta (slow waves) while rewarding faster beta activity to promote focused alertness.

Question 5

What is the purpose of an artifact rejection threshold in neurofeedback software?

Accepted Answer

To exclude signal segments contaminated by movement or eye blinks

Answer

Artifact rejection identifies and discards epochs where signals exceed a voltage threshold, preventing movement or blink artifacts from falsely triggering feedback.

BCIA - Biofeedback Certification International Alliance Practice Test

BCIA - Biofeedback Certification International Alliance Practice Test

BCIA Neurofeedback & EEG