Understanding Brainwaves

What technique is used to detect brainwaves by placing electrodes on the scalp?

• Magnetic Resonance Imaging (MRI)

• Electroencephalography (EEG)

• Positron Emission Tomography (PET)

• Computed Tomography (CT)

Which type of brainwave is typically associated with deep sleep?

• Gamma waves

• Alpha waves

• Beta waves

• Delta waves

What brainwave is commonly present when a person is awake but relaxed?

• Gamma waves

• Beta waves

• Theta waves

• Alpha waves

How can brainwaves be used to identify individuals?

• By measuring their frequency

• By analyzing their amplitude

• By observing their synchronization

• By taking a snapshot of all the waves

What is a tell-tale sign of a seizure in brainwave patterns?

• Increased gamma waves

• Spikes in brainwaves

• Decreased beta waves

• Constant alpha waves

Which brainwave is associated with reinforcing neural connections when a correct answer is given?

• Beta waves

• Alpha waves

• Theta waves

• Gamma waves

What happens to theta waves when an incorrect answer is given?

• They disappear

• They decrease

• They dominate

• They increase

What effect did restoring gamma waves have in mice with Alzheimer's-like symptoms?

• Increased memory loss

• Increased beta-amyloid plaques

• Reduced beta-amyloid plaques

• No change in brain activity

What is one proposed benefit of gamma waves in the brain?

• They stabilize mood

• They increase neuron firing speed

• They improve immune cell function

• They enhance vision

What is a major challenge in using gamma waves as a treatment in humans?

• Difficulty in detecting them in EEG

• Uncertainty in triggering them

• Inability to measure them accurately

• Lack of understanding of their existence