Psy240

In: Philosophy and Psychology

Submitted By latashacottrell
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Biopsychological research uses images of the organs to study the brain. X-Rays were used to see the imaging of the organ, however, it was useless to use for visualizing the brian. Contrast X-Ray techniques involves injecting into one compartment of the body a substance that absorbs X-Rays either less than or more than the surrounding tissue. (Pinel, JJ 2011). A contrast X-ray technique is called cerebral angiography; it is to visualize the circulatory system. This X-Ray is useful for localizing vascular damage, but the displacement of blood vessels from their normal position also can indicate the location of a tumor. The standard X-ray that is used is the X-ray computed tomography (CT). The CT is used to visualize the image of the brain. An MRI is also used to visually see the brain. The MRI has more resolution and is a three dimensional image. It is able to see things a lot clearer than the CT. The PET is one of the first imaging techniques that was used to see the image of the brain activity. For example if a person was concentrating on a specific item for a few seconds, in a few seconds the portion of the brain that was active will then enlarge in the imaging. Functional MRI is shows the increase in the oxygen flow in the blood. The fMRI has several advantages over PET such as PET has to have an injection and fMRI does not. The fMRI shows both functional and structural of the brain on the same screen or image. The spatial resolution is better on the fMRI then PET and 3D is used over the whole brain. The fMRI is slow in capturing many of the neural responses. TMS is used to turn off part of the brain while the effects of the disruption on cognition and behavior are assessed. (Pinel, JJ (2011).

Another method of studying the brain is psychological recording. The EEG is the gross electrical activity of the brain; it is recorded through these large…...

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