Ways of Studying the Brain

What does the term "post-mortem" refer to?

• Studying the brain while the person is alive
• A scanning technique that detects electrical impulses
• The examination of a dead body, specifically the brain
• Using an MRI machine to study brain structure

What is the primary focus of an fMRI scan?

• Measuring the brain's electrical activity over time
• Examining the brain's structure and anatomy
• Measuring blood flow to detect brain activity during tasks
• Detecting lesions in the brain after death

Which type of brain activity does an EEG measure?

• Electrical impulses in the brain detected via electrodes
• Blood flow changes in active areas of the brain
• Brain abnormalities and lesions
• Magnetic properties of oxygenated haemoglobin

What is the main advantage of post-mortem examinations compared to EEGs?

• They have high temporal resolution
• They allow for the examination of deeper brain structures
• They are non-invasive and can be conducted repeatedly
• They measure brain activity in real time

What is one limitation of using EEGs to study brain activity?

• They have high spatial resolution
• They only detect the brain's outer layer activity
• They measure blood flow rather than electrical activity
• They cannot diagnose epilepsy or sleep disorders

What does an fMRI specifically detect?

• Brain wave patterns during sleep
• Magnetic changes in oxygenated and deoxygenated blood
• Lesions and abnormalities in brain structure
• Electrical impulses between neurons

Which of the following is NOT an example of a scanning technique?

• EEG
• ERP
• Post-mortem
• fMRI

Which brain scanning method provides the highest temporal resolution?

• EEG
• fMRI
• Post-mortem
• MRI

What is one main difference between an ERP and an EEG?

• EEG measures blood flow, while ERP measures brain structure
• ERP focuses on specific stimuli, while EEG measures general brain activity
• ERP uses electrodes, while EEG uses magnetic imaging
• EEG detects brain abnormalities, while ERP diagnoses sleep disorders

Why is spatial resolution considered a limitation of EEGs?

• EEGs cannot detect activity in the deeper regions of the brain
• EEGs take too long to record brain activity changes
• EEGs are not effective at diagnosing epilepsy
• EEGs are more expensive than fMRIs