The type of brain waves visible on an EEG when we are awake:

Question

BlackTom AI · Accepted Answer

To tackle the question, I’ll examine what EEG wave patterns are typically associated with different states of consciousness while awake or asleep.
Option A: Alpha waves. These are commonly linked to relaxed, calm wakefulness, especially with eyes closed, but they are not the primary hallmark of being awake in an actively alert state.
Option B: Beta waves. Beta activity is characteristically observed when a person is alert, engaged in active thinking, concentration, or problem-solving. This makes Beta the classic EEG signature of being awake and alert.
Option C: Gamma waves. Gamma activity is often associated with higher-level cognitive processing and binding across neural networks, but it is not the standard indicator used to define wakefulness in a general sense.
Option D: Delta waves. Delta waves are predominant during deep, slow-wave sleep (stages 3–4) and are not typical of an awake state, except in certain pathological conditions. They do not represent normal awake EEG.
Thus, among the options, Beta best matches the brain-wave pattern observed when we are awake and actively processing information, while Alpha, Gamma, and Delta correspond to other states or contexts.

Spr25_PSYC001H_38576 Module 4 Quiz

The type of brain waves visible on an EEG when we are awake:

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