Psychology 2220A/B Chapter Notes - Chapter 5: Biological Specificity, Immunocytochemistry, Vomiting

• School: Western University
• Department: Psychology
• Course: Psychology 2220A/B
• Professor: Yves Bureau

Document Summary

Methods of visualizing and stimulating the living human brain. Each of the molecules through which the beam passes absorbs some of the radiation, thus, only the unabsorbed portions of the beam reach the photographic plate. Contrast x-rays: inject something that absorbs x-rays less or more than surrounding tissue. Heightens the contrast between the compartment and the surrounding tissue during x-ray photography. Provides more image detail especially in the vasculature. On one side of the cylinder is an x-ray tube that project an x-ray beam through the head to an x- ray detector mounted on the other side. The x-ray tube and detect automatically rotate around the head of the patient at one level of the brain, taking many individual x-ray photographs as they rotate. Computer generates a ct scan of the horizontal section of the brain. Provides a 3-d representation of the brain when combined. High spatial resolution images- represent differences in spatial location.