Research Methods in Biopsychology

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Across
  1. 2. Refers to the various techniques for measuring changes in the volume of blood in a particular part of the body
  2. 4. Procedure for measuring muscle tension.
  3. 8. Unit recording provides a moment-by-moment record of the graded fluctuations in one's neurons membrane potential
  4. 10. Technique that can be used to stimulate (“turn on”) an area of the cortex by applying an electrical current through two electrodes placed directly on the scalp.
  5. 11. Produces images representing the increase in oxygenated blood flow to active areas of the brain.
  6. 13. Technique that involves inserting microelectrodes into the the brain to record neural activity
  7. 15. Measures changes in magnetic fields on the surface of the scalp that are produced by changes in underlying patterns of neural activity.
  8. 16. Unit recording possible to record the action potential of a neuron but no information about the neuron's membrane potential
  9. 18. atlas Locate brain structures in much the same way that a geographic atlas is used to locate geographic landmarks
Down
  1. 1. Stimulation Delivered across the two tips of a bipolar electrode—two insulated wires wound tightly together and cut at the end.
  2. 3. lesions Methods for temporarily eliminating the activity in a particular area of the brain while tests are being conducted.
  3. 5. unit The electrode tip is much larger than that of a micro-electrode; thus, it picks up signals from many neurons, and slight shifts in its position due to movement of the subject have little effect on the overall signal.
  4. 6. frequency (lesions)small subcortical lesions are commonly made by passing radio-frequency current through the target tissue from the tip of a stereotaxically positioned electrode.
  5. 7. Lesions made in an area of cortical tissue that is accessible to the eyes and instruments of the surgeons
  6. 9. Technique that, like tES and TMS, can be used to activate particular brain structures.
  7. 12. EEG A large implanted electrode picks up general changes in electrical brain activity.
  8. 13. A measure of the gross electrical activity of the brain.
  9. 14. A new imaging technique that uses ultrasound (sound waves of a higher frequency than we can hear) to measure changes in blood volume in particular brain regions.
  10. 15. A structural brain-imaging procedure in which high-resolution images are constructed from the measurement of radio-frequency waves that hydrogen atoms emit as they align with a powerful magnetic field.
  11. 17. The first brain-imaging technique to provide images of brain activity (functional brain images) rather than images of brain structure (structural brain images).