Magnetic resonance imaging mri technique used to

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Magnetic resonance imaging (MRI)- technique used to image the interior of the body using the interaction between radio waves & a strong magnetic field
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Brain Imaging—Metabolic Activity Positron emission tomography (PET)- use of a device that reveals the location of a radioactive tracer in a living brain Machine detects the radioactive decay of 2-DG
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Brain Imaging Metabolic Activity Functional MRI (fMRI)- using MRI signal changes (produced by changes in blood flow to active areas) while people are performing tasks to assess areas that could be involved in that particular task performance Better resolution than PET
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Genetic Methods Knock out Mice Targeted mutations- genes that are mutated purposely to see how the animal behaves without it
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1) Technique #13 Genetic Manipulations
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2)
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Genetic Methods Twin studies- method for examining the influence of heredity of a particular trait Concordance rate- amount of twins sharing the trait Compare concordance rates between monozygotic (genetically identical) & dizygotic twins (not genetically identical) Adoption studies- another method to examine the heritability of a trait Compare people adopted early in life with biological & adoptive parents
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Let’s Work Some Examples How would you use these techniques? Ex. You are interested in the interaction between sex hormones (Testosterone (T) & Estradiol (E) and the stress response. You want to explore what parts of the brain might be involved in this interaction. Using one or two of the following techniques describe how you would explore your question.
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