PSY 251 Lecture Notes - Lecture 8: Transcranial Magnetic Stimulation, Magnetic Resonance Imaging, Altoids
22 Oct 2016
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Exam: thursday, 10/20/16: methods and strategies of research: ch. 5. Stereotaxic surgery: stereotaxic atlas: drawings/pictures of brain sections with measurements to show coordinates for performing the stereotaxic surgery (like a map of the brain, stereotaxic surgery: brain surgery that uses stereotaxic apparatus to place an. Bregma: junction of sagittal and coronal sutures on skull; reference point electrode/cannula in a certain region. Temporary )nactivation = (cid:498)reversible lesion(cid:499) done with drugs inhibit neurons from firing: ex: lidocaine (blocks voltage-gated na+ channels = no ap), muscimol (gaba agonists , wears off and region can regain normal functioning. Fixation/sectioning: fixative: chemical that preserves body tissue, stops enzymes, prevents decomposition, microtome = instrument to cut very thin slices of body tissue for analyses. Nissl stain: stains nissl substance which are large granules in the cell body, allows you to view the cytoarchitecture. Electron microscopy: scanning electron microscopes provide 3d info about shapes of small objects.
