Ways of studying the brain
- Created by: piperfitzgerald
- Created on: 01-04-19 19:20
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- Ways of studying the brain
- fMRI
- Functional magnetic resonance imaging
- When a brain is more active it consumes more oxygen and blood flow is directed to the active area
- fMRI produces a 3D image which shows the different active parts of the brain and therefore must be involved in particular mental processes
- Non invasive
- Expensive
- EEG
- Electoencephalogram
- Measures electrical activity within the brain via electrodes using a skull cap
- Scan recording represents the brain wave patterns generated by millions of neurons. Showing overall brain activity.
- Often used as an diagnostic tool.
- Invaluable for diagnosing conditions such as epilepsy
- Information is received from thousands of neurons
- ERPs
- Event related potentials
- What is left when all extraneous brain activity from EEG recordings
- Using a statistical technique, leaving only responses that relate to the presentation of a specific stimulus or performance of a certain task
- Type of brainwave that are triggered by particular events
- Research has revealed many different forms of ERP and how these are linked to cognitive processes
- Very specific measurement of neural processes
- Lack of standardization in methodology between studies
- Post mortem examinations
- Technique involving the analysis of a persons brain following their death
- Areas of the brain are examined to establish the likely cause of a deficit or disorder that the person suffered in life
- May involve comparison with a neurotypical brain in order to assess the difference
- Provided foundation for understanding the brain
- Causation may be an issue
- fMRI
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