PSYB57H3 Lecture Notes - Lecture 2: Functional Magnetic Resonance Imaging, Ct Scan, Electroencephalography
Document Summary
Computed tomography (ct): earliest imaging technique that provides detailed anatomical data. Magnetic resonance imaging (mri): provides a similar images but with higher spatial resolution. Both are able to produce high-quality images of human brain structures allowing to localize brain lesions, tumors and developmental abnormalities. Electrical signals emitted by the brain can be recorded using electrodes placed on the scalp using electroencephalography (eeg) In general, although event-related potentials can provide suggestive information, additional techniques must be used in order to gain a more complete picture of brain processes. Pet: an imaging technique in which a participant is injected with a radioactive substance that mingles with the blood and circulates the brain. A scanner is then used to detect the flow of blood to particular areas of the brain. Makes it possible to construct images showing which part of the brain are particularly active in relation to the performance of different tasks.
