Brain Imaging Technology Essay

Improved Essays
Discuss the use of brain imaging technology in investigating the relationship between biology and behaviour

The function of this paper is to review, in an unbiased way of brain imaging technologies in investigating the relationship between biology and behaviour.

Brain imaging technologies, with their advantages and disadvantages:

PET scan/Positron Emission Tomography scan

What it is:
A PET scan, or Positron Emission Tomography scan is a scan that detects positrons that are emitted from radioactive materials, and is used to scan bodies containing a radioactive tracer/radiotracer/radiopharmaceutical/radionuclide is either inhaled, injected, or ingested into the body. Brighter spots appear where the concentration of radioactive tracer has
…show more content…
The patient may feel discomfort from enduring long periods of time without movement.
A radioactive substance is entered into the body of the patient, which may have harmful side effects, especially if the patient is sensitive to radiation, pregnant, or breastfeeding.
PET scans are very sensitive to picking up any abnormalities such as diabetes, or any other bodily chemical imbalance, which may lead to false diagnoses.
As the patient’s body is exposed to radioactive substances during a PET scan, it can only be done a limited number of times on one patient.
PET scans are very expensive.
Patients may feel claustrophobic, and uncomfortable.
PET scanning equipment is not readily available, and is difficult to find, as the equipment includes a cyclotron, a machine that creates radioisotopes, which is difficult to obtain.
Low resolution, as it can only go down to 5 - 10 cubic millimeters

Case study: Dehaene et al(1996)

Aim: To investigate the areas of cerebral blood flow/most active brain sites during number comparison and multiplication.

Method: The eight participants were divided into three

Related Documents

  • Improved Essays

    Introduction A pulmonary nodule is a small, round growth of tissue in the lung. Pulmonary nodules can range in size from less than 1/5 inch (4 mm) to a little bigger than an inch (25 mm). Most pulmonary nodules are detected when imaging tests of the lung are being performed for a different problem. Pulmonary nodules are usually not cancerous (benign).…

    • 595 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    PET Vs Ct Scan Case Study

    • 122 Words
    • 1 Pages

    The main difference between the PET and the CT scan images, is that the PET scan reveals the cellular metabolic occurring in a tissue or organs. While the CT scan shows the images of any part of the body such as organs, vessels or tissues. Through PET scan it is possible to detect the formation of a disease through the functional changes of the organ, which is not possible to do through a CT scan. 5 The PET and CT scan are combined because it is possible to observe the view of two different exams, which leads to more accurate diagnoses.…

    • 122 Words
    • 1 Pages
    Decent Essays
  • Decent Essays

    Iodine 123 Research Paper

    • 637 Words
    • 3 Pages

    contraindication of contrast media In the radiation they are using many tints , e.g. barium also We are using in the nuclear medicine and it’s called radiopharmaceuticals such as Carbon-11 , Chromium-51 , Fluorine-18FDG , Gallium-87 , Gallium-86 citrate , Technetium-99 , Iodine-123 and Iodine-131 . there are all these different uses pigments have benefits and harm . Firstly , we will talk about Iodine-123 is used to diagnoses the patients .…

    • 637 Words
    • 3 Pages
    Decent Essays
  • Improved Essays

    PET Scan Research Paper

    • 519 Words
    • 3 Pages

    TIME Magazine named the PET scan the medical invention of the year in 2000, and Dr. David Townsend and Dr. Ronald Nutt are credited as the individuals behind the paramount device. A positron emission tomography (PET) scan is a nuclear medicine imaging test that aids in revealing how well a human’s organs and tissues are functioning; the scan can measure an individual’s oxygen use, glucose metabolism, blood flow and much more. The significance of this function is monumental as it essentially enables the scan to detect diseases such as: cancers, heart diseases and brain disorders, before it might appear on various other imaging tests. As a result, more often than not, a PET scan could be the first step in saving a life. The PET Scan, uses radiation to reveal activity within the body on a cellular level.…

    • 519 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Colorectal carcinoma is a cancer of the large intestine (colon) and rectum , the lower part of the digestive system. It can metastasis to liver, lung, bone, brain and lymph nodes. These are the common sites [8]. However, liver metastases is the main cause for death. Adrenal gland, testicular and skin are the less frequent sites(8).…

    • 589 Words
    • 3 Pages
    Improved Essays
  • Decent Essays

    Every organ in our bodies acts differently from a chemical point of view. There is a number of chemicals which are absorbed by specific organs. For example the thyroid takes up iodine and the brain consumes quantities of glucose. Radiopharmacists are able to attach various radioisotopes to biologically active substances. Once a radioactive form of one of these substances enters the body, it is…

    • 132 Words
    • 1 Pages
    Decent Essays
  • Improved Essays

    Digital Mammography

    • 464 Words
    • 2 Pages

    Introduction The medical world as we know today has rapidly changed primarily by incorporating the newest technology into patient management. One of the most deeply interconnected with technology is the field of radiology. New technologies are introduced in every year. This paper will discuss the impact of digitisation of radiological examination and the use of Picture Archiving and Communication System (PACS) in revolutioning the radiology practice.…

    • 464 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    PET Scan Essay

    • 576 Words
    • 3 Pages

    The PET scan should not be risky if all the safety precautions are observed and adhered to. This form of imaging is quintessential when dealing with…

    • 576 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    Why do people choose to fight, where others may decide to flee in a fight or flight scenario? Why do some express sadness and others show happiness in a time of pain? Psychology, which is the scientific study of behavior and mental processes, is research that helps to inform/prove why people act the way they do. There are many reasons to explain questions such as these, but there are seven distinct perspectives that help to demonstrate why. As seen in Laura A. King’s book “The Science of Psychology: An Appreciative View (4th edition)” there are seven contemporary approaches to psychology, that examine questions regarding human behavior.…

    • 863 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Nuclear engineering is a very beneficial career. You are in a position to help the world move forward as a whole. Nuclear engineers help pave the way to the future with, new medicines and new inventions, but the job isn't for everyone, with their use of math and science they learned in college it can take a toll on someone not up for the task, other than that the job is like most others you are in an office but get paid fairly well . With the use of math and many other sciences this might not be a career for everyone. This is mostly office work but sometimes you could be traveling to power plants.…

    • 955 Words
    • 4 Pages
    Improved Essays
  • Improved Essays

    Abstract: Adaptive radiation therapy is a closed-loop radiation treatment process where the treatment plan can be modified using a systematic feedback of measurements. Adaptive radiation therapy intends to improve radiation treatment by systematically monitoring treatment variations and incorporating them to re-optimize the treatment plan early on during the course of treatment. In this process, field margin and treatment dose can be routinely customized to each individual patient to achieve a safe dose escalation. Introduction: Medical imaging systems are widely used in radiological diagnosis. Their main benefits are more accurate and faster exams, elimination of exploratory surgery, availability of post processing and computed aided detection,…

    • 676 Words
    • 3 Pages
    Improved Essays
  • Improved Essays

    The functions of different areas of the brain greatly affect our actions, dispositions, ability to function in all areas of life. Understanding how each area works in relation to one another can help all of society. The documentary showed examples of US Navy seals implementing a mental toughness program to increase the probability of success of recruits in situations of panic. The documentary described how sex, and thrill seeking behaviors impact the release of dopamine in the brain. Abnormalities or physical differences in the brain affect psychopaths, savants, and even athletes.…

    • 485 Words
    • 2 Pages
    Improved Essays
  • Improved Essays

    accurately registered anatomic and functional images can be acquired in a single examination Current designs constitute a CT scanner in tandem with a PET scanner, with a common patient bed for both systems. Although in most designs, the scanner appears externally to be a single device, internally there is little or no mechanical integration (Fig.12) Limitations and advantages of anatomical and metabolic imaging: Limitations of anatomical imaging include; inability to determine if a mass is benign or malignant, or to determine if enlarged lymph nodes contain cancer, unable to detect small tumor foci in lymph nodes or elsewhere, inability to determine whether a residual–recurrent abnormality present after treatment represents scar or tumor…

    • 1417 Words
    • 6 Pages
    Improved Essays
  • Improved Essays

    These tests were based on showing a specific object either to the left hemisphere or on the right and seeing if the patients were able to identify these objects. Another test was touch, where each patient was given a bag with specific objects in and they were told to pick out this item either with their left hand or right hand depending on what hemisphere was being studied. The results from these tests were very intriguing because with the visual tests, the patients who saw the light bulbs on the right hemisphere were able to identify that they saw the bulbs. However when they were shown the lights on the left hemisphere the patients were unable to unable to explain what they saw. This proves that while both hemispheres saw the lights, only the right side allowed the patients to verbally explain what they had seen.…

    • 894 Words
    • 4 Pages
    Improved Essays
  • Great Essays

    If the radioisotopes are given or pointed at a part of the body of a person, which is completely normal, then the radioisotopes would be killing healthy cells, and that would be harmful to the human being. And In addition, we know they are used in the construction of bombs. So that…

    • 1456 Words
    • 6 Pages
    Great Essays