5.CAT scan: Computerized axial tomography scan. CAT scanning is a painless X-ray test in which a computer generates cross-section views of a patient's anatomy. It can identify normal and abnormal structures, and it can be used to guide procedures. Iodine-containing contrast material is sometimes used in CAT scanning. A patient who is allergic to iodine or contrast materials and is scheduled to have a CAT scan should notify the physician and the radiology staff about the allergy. Also known as CT scan.…
The development of the electroencephalograph led to dramatic increases in what is known about sleep. When electrodes are attached to the face and scalp of sleepers, different patterns are produced on the graphic record called the electroencephalogram or EEG. The patterns vary in frequency and amplitude of the waves shown on the EEG. These waves reflect patterns of brain activity. It was discovered that the patterns on the EEG change throughout the night to correspond to various stages of sleep.…
A technique for revealing bloodflow and, therefore, brain activity by comparing successive MRI scans. fMRI scans show brain function.…
The MRI measures variations in magnetic fields. It then computes and depicts cross sections of organs such as the brain with great clarity. It is noninvasive and allows for visualization of all but the tiniest brain structures. Its major problem is the claustrophobic reaction some people have to the procedure. PET scans track substances as they are metabolized by the brain. They can show how the brain is functioning. They can help identify areas that are not functioning normally that might not be obvious anatomically. Their major problem is low-fidelity pictures that have so far limited their value. The fMRI measures changes in blood flow in the brain. It is possible to map ongoing psychological activity and show which areas of the…
was tools like an MRI or PET. For studying consciousness there is Mental Rotation and…
help to interact with the brains that connect to the synapses that will go on and connect and send…
4. Positron Emission Tomography (PET)- A visual display of brain activity that detects where a radioactive form of glucose goes while the brain performs a given task.…
6. How do scientists determine which areas of the brain are associated with specific actions, emotions, or functions?…
It is a type of scan that is used in medical settings to evaluate and come to a diagnostic conclusion of the body. This process involves the use of both strong magnetic fields and radio waves in order to produce the image needed to assess the person’s well being. The MRI scan has proven to be effective in examining different parts of the body, and the following are examples: Brain, spinal cord, internal organs, heart and blood vessels, bones.…
Brain waves are measured by placing electrodes on the scalp. The procedure is called EEG. They detect electrical activity in the brain.…
The human brain has perplexed the minds of philosophers since the age of the ancient Greeks. In the late 1800s, the study of the brain-psychology-became its own discipline independent from philosophy when the scientific method was employed to study the underlying mechanisms of the psyche. Although the original research produced by the first psychologists was widely subjective and biased, it helped to pave the way for serious research conducted later in psychology's history.…
* Describe the clinical and anatomical evidence that supports the hypothesis that different areas of the brain mediate different functions…
many different forms of stimulus energy are converted into electrical signals for use by the nervous system.…
Clinical psychologists and neuroscientific researchers have always sought to understand what is going on in the brain and what is on the mind of their clients. For centuries, direct examination of the brain was elusive and almost nearly impossible due to the inadequacy of technology. However, noninvasive advances in brain examination have alleviated those challenges, making it possible to explore and investigate the brain in depth.…
One way of classification is according to parts of the brain being affected. Some frequently used classifications are as follows:…