psych 260 exam 3

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psych 260 exam 3
2011-04-02 18:59:41
psych exam

psych 260 exam 3
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  1. Experimental Abilation
    destroying part of the brain and evaluating the animals subsaequent behavior; the functions can no longer be preformed in the region that abilation occured
  2. Lesion
    a wound or injury; lesion=experimental abilation
  3. ____ within the brain preform ____, not behaviors
    circuts, functions
  4. can one brain region or neural circut souley be responsible for behavior
  5. Excitotoxic lesion
    a method of producing brain lesions; intracerebral injection of an excitatory amino acid, such as kainic acid
  6. Sham lesion
    a method of produciong brain lesions; placebo procedure that duplicates all procedures of a brain lesion except for the step that actually causes the damage to the brain
  7. Radio frequency
  8. Stereotaxic surgury
    Brain surgury using a stereotaxic apparatus to position an electrode in a specified position of the brain
  9. Stereotaxic atlas
    a collection of drawings of sections of the brain of a particular animal with measurements that provide coordinates for the stereotaxic surgury
  10. hostological methods as it pertains to brain lesions
    they often miss the mark
  11. scanning electron microscope
    provides 3d information about the shape of the surface of a small object
  12. Anterograde labeling method
    a histological method that labels the axon and terminal buttons or neurons whose cell bodies are located in a particular region
  13. PHA-L
    a protein derived from kidney beans and used as an anterograde tracer; taken up by dendrites and cell bodies and carried to the ends of the axons
  14. Immunocytochemical method
    they take advantage of the immune reaction; a histological method; antibodies bond with a dye molecule to indicate the presense of particular proteins of peptides
  15. retrograde labeling method
    a histological method that labels cell bodies that give rise to the terminal buttons that form synapses with cells in a particular region
  16. flurogold
    retrograde labeling dye that is taken up by the terminal buttons and then carried back to the cell bodies
  17. Brain functions involve activity of circuts of _____; thus, diffrent perceptiona and behavioral rsponses involve diffrent ____ __ _______ in the brain
    neurons, patterns of activity
  18. EEG
    an electrical brain potential recorded by placing electrodes on the scalp; record electrical patterns of electrical activity
  19. MEG
    a procedure that detects groups of synchronously activated neurons by means of the magnetic field induced by their electrical activity; ueses an array od SQUIDs
  20. Microelectrode
    A very fine electrode, generally used to record activity of individual neurons
  21. Single-unit recording
    recording of the eectrical activity of a single neuron
  22. macroelectrode
    an electrode used to record the electrical activity of large numbers of neurons in a particular region of the brain
  23. Functional imaging
    a computerized method of detecting metabolic or chemical changes in particular regions of the brain
  24. PET scan
    a functional imaging method; reveals the localization of radioactive tracer in a living brain