lecture04 fMRI

lecture04 fMRI - Lecture 4: Cognitive Neuroscience Methods...

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Unformatted text preview: Lecture 4: Cognitive Neuroscience Methods - fMRI Psych 123 Cognitive Neuroscience Anatomical Study of the Brain Functional Study of the Brain Methods of Cognitive Neuroscience Patient Studies Neuroimaging Studies Functional Magnetic Resonance Imaging (fMRI) Positron Emission Tomography (PET) Electrophysiological Studies Single-Cell Recordings Event-Related Potential Recordings (ERP) Intra-Cranial Electrode Recordings Transcranial Magnetic Stimulation (TMS) E = mc 2 ??? [In Mossos experiments] the subject to be observed lay on a delicately balanced table which could tip downward either at the head or at the foot if the weight of either end were increased. The moment emotional or intellectual activity began in the subject, down went the balance at the head-end, in consequence of the redistribution of blood in his system.-- William James, Principles of Psychology (1890) Angelo Mosso Italian physiologist (1846-1910) The First Brain Activation Study Using Blood Flow Positron Emission Tomography (PET) Tracks blood fow in the brain by monitoring the distribution oF a radioactive tracer that is injected into the blood stream. Functional Magnetic Resonance Imaging (fMRI) MRI is based on the detection of electromagnetic signals (radio frequency (RF) waves) which emanate from spinning hydrogen protons when they are excited by an RF pulse applied in the presence of an externally generated static magnetic eld. (DeYoe, 1994). low resolution (~3 mm but can be better)...
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This note was uploaded on 09/09/2011 for the course PSY 123 taught by Professor Staff during the Spring '11 term at UCSB.

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lecture04 fMRI - Lecture 4: Cognitive Neuroscience Methods...

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