functional Magnetic Resonance Imaging... detects changes in blood flow + blood oxygenation. makes 3 dimentional images (activation maps) produces the haemodynamic response.
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haemodynamic response (fMRI)
when a part of the brain is more active, it needs more oxygen to work. to meet the need for more oxygen, blood flow is increased around that area.
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EEG
ElectroEncephaloGrams: measure the brainwave patters that are made by thousands of neurons in the brain. measured through electrodes that are fitted to the head by a skull cap. they are used to diagnose unusual arrhythmic patterns of activity.
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arrhythmic patters (EEG)
brain activity doesnt have particular patterns. helps to diagnose epilepsy, tumours + sleep disorders.
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ERP
Event Related Potentials: brainwaves that are set of by certain motor, sensory + cognitive events. information is extracted from EEGs by statistical analysis.
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Post Mortem
the brain is analysed after death to see whether observed behaviours during the patients life can be liked to things that are abnormal in the brain.
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Card 2
Front
haemodynamic response (fMRI)
Back
when a part of the brain is more active, it needs more oxygen to work. to meet the need for more oxygen, blood flow is increased around that area.
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