If you are awake and concentrating on a task while an EEG machine is recording your brain activity, the EEG should record
A) low-frequency, high-voltage spikes throughout your brain.
B) desynchronized, relatively high frequency activity.
C) synchronized, low-frequency activity.
D) a large number of delta waves.

Question

Quizplus · Accepted Answer

When someone is awake and concentrating on a task, their EEG should record desynchronized, relatively high frequency activity. This is because their brain is actively processing information and communicating between different areas, leading to a more variable and rapid firing of neurons. Options A and D (low-frequency, high-voltage spikes and a large number of delta waves, respectively) may be indicative of certain pathological conditions or types of sleep, but not normal waking activity. Option C (synchronized, low-frequency activity) is characteristic of deep sleep or unconsciousness, not wakeful attention.

If You Are Awake and Concentrating on a Task While