Research Methods

5. a contrast x-ray technique that uses the infucion of a radio-opaque dye into a cerebral artery to visualize the cerebral circulatory system during x-ray photography. (2 words)
6. Type of lesion where the cortical tissue is drawn off by suction through a fine-tipped handheld glass pipette (2 words)
8. computer-assisted x-ray procedure that can be used to visualize the brain and other internal structures of the body (2 words)
9. produces images representing the increase in oxygenated blood flow to active areas of the brain (2 words)
14. lesions restricted to one half of the brain (1 word)
16. Used to locate brain structures in much the same way that a geographic atlas is used. (2 words)
18. first brain-imaging technique to provide images of brain activity rather than images of brain structure (3 words)
19. X-ray technique that involves injecting into one compartment of the body a substance that absorbs x-rays either less than or more than the surrounding tissue (2 words)
20. uses the magnetic field of the hydrogen atoms in order to produce high-resolution images (3 words)

1. Means by which experimental devices are precisely positioned in the depths of the brain. (2 words)
2. provides a moment-by-moment record of the graded fluctiations in one neuron's membrane potential (3 words)
3. follows the axons tracts to be able to see the connections of the brain (2 words)
4. stimulates the part of the cortex to see its function (3 words)
7. temporarily turns off part of the brain while the effects of the disruption on cognitive and behavior are assessed (3 words)
10. Made by passing radio-frequency current through the target tissue from the tip of a stereotaxically positioned electrode (3 words)
11. provides a record of the firing of a neuron but no information about the neuron's membrane potantial (3 words)
12. Sectioning used to eliminate conduction in a nerve or tract (2 words)
13. Method for temporarily eliminating the activity in a particular area while tests are being conducted (2 words)
15. lesions involving both sides of the brain (1 word)
17. discovered by Wilhelm Röntgen. (1 word)