Tuesday, May 19, 2020

Brain Imaging Techniques Used Today - 1645 Words

Brain Imaging Techniques Duane Perrin Eastern Oregon University 11/11/2016 Since the beginning of time people have been trying to understand what is going on inside our heads. With the development and continuous advancement of brain imaging techniques it has become possible to do just that. It is now possible to produce both structural and functional images of the brain. While brain imaging techniques have advanced significantly throughout history and proven extremely useful, they still have their limitations. The purpose of this paper is to give a brief history of brain imaging developments, explain the major brain imaging techniques being used today, and provide information about what each scan can and can’t tell us about the human mind and brain. A brief history of brain imaging as described by Raichle (2009) begins with the introduction of computerized tomography (CT) in the early 1970s and development of magnetic resonance imaging (MRI) shortly thereafter, which prompted the invent and use of positron emission tomography (PET), and then functional magnetic resonance imaging (fMRI) which came in the 1990s (p.119). Since then other forms of brain scanning technology have appeared such as the Magnetoencephalography (MEG) scan, and other variations of PET and MRI such as diffusion tensor imaging (DTI). The appearance of these types of brain imaging techniques has provided great insight into the structure and function of the human mind. First, it is importantShow MoreRelatedAnalysis Of Cognitive Neuroscientists892 Words   |  4 PagesCognitive neuroscientists use several brain imaging methods that look at the structure or function of the brain to study cognition. Position emission tomography (PET), functional magnetic resonance imaging (FMRI), electroencephalograph (EEG), magnetoencephalography (MEG) and transcranial magnetic stimulation (TMS) are all commonly used techniques. Neuroscientists want to use these techniques to construct theoretical models that represent and explain brain organisation and function (Eysenck KeaneRead MoreChild Abuse and Cognitive Psychology1478 Words   |  6 Pagesnotes, 2014). Neuroimaging is also an important mechanism in cognitive psychology. Neuroimaging also known as brain imaging involves â€Å"the construction of pictures of the anatomy and functioning of intact brains through such techniques as computerized axial tomography, (CAT, or CT), positron emission tomography (PET), magnetic resonance imaging (MRI) or functional magnetic resonance imaging (fMRI)† (Galotti, 2014). Since language and neuroimaging are broad topics, this paper will examine how languageRead MoreImaging Truth: Is Functional MRI the Future of Lie Detection?964 Words   |  4 PagesImaging Truth: Is Functional MRI the Future of Lie Detection? Humans have used deception and trickery as a means of protection, survival, and personal gain from the very beginning. At the primitive level this deception was required, for example, by using camouflage to catch prey. Move forward several thousand years, and human deception can result in massive profit gains, injury or death to others, and identity fraud, among many others. Across different civilizations a variety of techniques wereRead MoreA Map Of The Brain : Dr. Allen Jones1186 Words   |  5 Pagessimilar approach can be used to discuss recent brain mapping technology, the primary research of Dr. Allen Jones. Dr. Allen Jones is a brain research whose ultimate goal is to unveil a complete map of the human brain, using recent brain imaging and histological techniques. In his TED talk entitled, A Map of the Brain, Dr. Allen Jones discusses a brief overview of the anatomical structures of the brain, as well as, the methods and conclusions of his brain research. A fresh human brain does not resembleRead MorePositron Emission Tomography (Pet Scan)1563 Words   |  7 Pagesscan, you will be introduced to a fairly new medical imaging technique. Since this emerging modality is so new, a lot of the general public is not aware of what a PET scan exactly is. This essay will help explain the concept of this modality and the characteristics of it that allow doctors to diagnose and manage the proper care for some of todays most devastating medical conditions known to man. Positron emission tomography, also called PET imaging or a PET scan, is a diagnostic examination that usesRead MoreBiography Of Jeffrey Leonard Resected A Brain Tumor1106 Words   |  5 Pagesneurosurgeon Jeffrey Leonard resected a brain tumor in a ten year old girl that was previously thought to be inoperable. Although it took two operations, due to modern technology and education Dr. Leonard was successful. The girl fully recovered from surgery and was awake and responsive the next morning. Modern surgeons’ knowledge of the human brain has evolved immensely through the ages. The first brain surgeons did not have anywhere near the knowledge that we possess today, but it is because of them thatRead MoreSchizophrenia Sufferers Hear Voices763 Words   |  4 PagesPart of the Brain that Makes Schizophrenia Sufferers Hear voices†. The sources of the article are from The Telegraph and it was published on September 5, 2017.The article is about how to decrease or fix voices that is a symptom of Schizophrenia. More than half of people with schizophrenia have v oices in their head. Your mine can your friend or enemy. The was many research try to see if a certain type of therapy of work of losing the voices. Scientists have found where part of our brain cause andRead MoreImportance of Computers in Medicine794 Words   |  4 Pagesdata, they enable speedy processing of information and they possess an inbuilt intelligence, which if supplemented with human intellect, can work wonders. Owing to their intelligence and speed, computers function on a level close to that of the human brain. Computers can hence be employed in different fields like engineering, data processing and storage, planning and scheduling, networking, education as well as health and medicine. You might want to take a look at the various uses of computers, beforeRead MoreUltrasound Imaging : An Ultrasound Machine1291 Words   |  6 Pagespatient, without the use of x-rays. The ultrasound imaging technique involves using high frequency sound waves and their echoes. The machin e transmits high-frequency sound pulses into the patient’s body using a probe. In the image, the technician presses and moves the probe along the patient’s body. This photo was taken in the St. Louis Children’s Hospital. A wave is a traveling disturbance that carries energy from one place to another. Ultrasound-imaging machines use waves to produce real time imagesRead MoreAlzheimer s Disease : A Progressive Disease1663 Words   |  7 PagesEventually, people with the disease may even forget important people in their lives and undergo dramatic personality changes. Alzheimer s disease is the most common cause of dementia — a group of brain disorders that cause the loss of intellectual and social skills. In Alzheimer s disease, the brain cells degenerate and die, causing a steady decline in memory and mental function. Current Alzheimer s disease medications and management strategies may temporarily improve symptoms. This can sometimes

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.