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Neurocognitive functions are cognitive functions closely linked to the function of particular areas, neural pathways, or cortical networks in the brain, ultimately served by the substrate of the brain's neurological matrix. Therefore, their understanding is closely linked to the practice of neuropsychology and cognitive neuroscience, two disciplines that broadly seek to understand how the structure and function of the brain relate to cognition and behaviour.
Neuropsychology is a branch of psychology concerned with how a person's cognition and behavior are related to the brain and the rest of the nervous system. Professionals in this branch of psychology often focus on how injuries or illnesses of the brain affect cognitive and behavioral functions.
Rehabilitation of sensory and cognitive function typically involves methods for retraining neural pathways or training new neural pathways to regain or improve neurocognitive functioning that have been diminished by disease or trauma. The main objective outcome for rehabilitation is to assist in regaining physical abilities and improving performance. Three common neuropsychological problems treatable with rehabilitation are attention deficit/hyperactivity disorder (ADHD), concussion, and spinal cord injury. Rehabilitation research and practices are a fertile area for clinical neuropsychologists, rehabilitation psychologists, and others.
Cognitive neuropsychology is a branch of cognitive psychology that aims to understand how the structure and function of the brain relates to specific psychological processes. Cognitive psychology is the science that looks at how mental processes are responsible for our cognitive abilities to store and produce new memories, produce language, recognize people and objects, as well as our ability to reason and problem solve. Cognitive neuropsychology places a particular emphasis on studying the cognitive effects of brain injury or neurological illness with a view to inferring models of normal cognitive functioning. Evidence is based on case studies of individual brain damaged patients who show deficits in brain areas and from patients who exhibit double dissociations. Double dissociations involve two patients and two tasks. One patient is impaired at one task but normal on the other, while the other patient is normal on the first task and impaired on the other. For example, patient A would be poor at reading printed words while still being normal at understanding spoken words, while the patient B would be normal at understanding written words and be poor at understanding spoken words. Scientists can interpret this information to explain how there is a single cognitive module for word comprehension. From studies like these, researchers infer that different areas of the brain are highly specialised. Cognitive neuropsychology can be distinguished from cognitive neuroscience, which is also interested in brain damaged patients, but is particularly focused on uncovering the neural mechanisms underlying cognitive processes.
Clinical neuropsychology is a sub-field of psychology concerned with the applied science of brain-behaviour relationships. Clinical neuropsychologists use this knowledge in the assessment, diagnosis, treatment, and or rehabilitation of patients across the lifespan with neurological, medical, neurodevelopmental and psychiatric conditions, as well as other cognitive and learning disorders. The branch of neuropsychology associated with children and young people is pediatric neuropsychology.
Neuropsychological assessment was traditionally carried out to assess the extent of impairment to a particular skill and to attempt to determine the area of the brain which may have been damaged following brain injury or neurological illness. With the advent of neuroimaging techniques, location of space-occupying lesions can now be more accurately determined through this method, so the focus has now moved on to the assessment of cognition and behaviour, including examining the effects of any brain injury or neuropathological process that a person may have experienced.
The Wisconsin Card Sorting Test (WCST) is a neuropsychological test of set-shifting, which is the capability to show flexibility when exposed to changes in reinforcement. The WCST was written by David A. Grant and Esta A. Berg. The Professional Manual for the WCST was written by Robert K. Heaton, Gordon J. Chelune, Jack L. Talley, Gary G. Kay, and Glenn Curtiss.
The Tower of London test is a test used in applied clinical neuropsychology for the assessment of executive functioning specifically to detect deficits in planning, which may occur due to a variety of medical and neuropsychiatric conditions. It is related to the classic problem-solving puzzle known as the Tower of Hanoi.
Post-concussion syndrome (PCS) is a set of symptoms that may continue for weeks, months, or a year or more after a concussion – medically classified as a so-called mild traumatic brain injury (TBI). About 34 to 35% of people with concussion experience persistent or prolonged symptoms 3 to 6 months after injury. Prolonged concussion is defined as having concussion symptoms for over four weeks following the first accident in youth and for weeks or months in adults.
Edith F. Kaplan was an American psychologist. She was a pioneer of neuropsychological tests and did most of her work at the Boston VA Hospital. Kaplan is known for her promotion of clinical neuropsychology as a specialty area in psychology. She examined brain-behavioral relationships in aphasia, apraxia, developmental issues in clinical neuropsychology, as well as normal and abnormal aging. Kaplan helped develop a new method of assessing brain function with neuropsychological assessment, called "The Boston Process Approach."
Premorbidity refers to the state of functionality prior to the onset of a disease or illness. It is most often used in relation to psychological function, but can also be used in relation to other medical conditions.
Muriel Elaine Deutsch Lezak was an American neuropsychologist best known for her book Neuropsychological Assessment, widely accepted as the standard in the field. Her work has centred on the research, assessment, and rehabilitation of brain injury. Lezak was a professor of neurology at the Oregon Health and Science University School of Medicine.
Post-traumatic amnesia (PTA) is a state of confusion that occurs immediately following a traumatic brain injury (TBI) in which the injured person is disoriented and unable to remember events that occur after the injury. The person may be unable to state their name, where they are, and what time it is. When continuous memory returns, PTA is considered to have resolved. While PTA lasts, new events cannot be stored in the memory. About a third of patients with mild head injury are reported to have "islands of memory", in which the patient can recall only some events. During PTA, the patient's consciousness is "clouded". Because PTA involves confusion in addition to the memory loss typical of amnesia, the term "post-traumatic confusional state" has been proposed as an alternative.
The California Verbal Learning Test (CVLT) is one of the most widely used neuropsychological tests in North America. As an instrument, it represents a relatively new approach to clinical psychology and the cognitive science of memory. It measures episodic verbal learning and memory, and demonstrates sensitivity to a range of clinical conditions. The test does this by attempting to link memory deficits with impaired performance on specific tasks. It assesses encoding, recall and recognition in a single modality of item presentation (auditory-verbal). The CVLT is considered to be a more sensitive measure of episodic memory than other verbal learning tests. It was designed to not only measure how much a subject learned, but also reveal strategies employed and the types of errors made. The CVLT indexes free and cued recall, serial position effects, semantic clustering, intrusions, interference and recognition. Delis et al. (1994) released the California Verbal Learning Test for Children (CVLT-C). The California Verbal Learning Test-II (CVLT-II) is an updated version of the original CVLT, which has been standardized and provides normative data.
Pediatric neuropsychology is a sub-speciality within the field of clinical neuropsychology that studies the relationship between brain health and behaviour in children. Many pediatric neuropsychologists are involved in teaching, research, supervision, and training of undergraduate and graduate students in the field.
The Division of Clinical Neuropsychology of the American Psychological Association is a scientific and professional organization of psychologists interested in neuropsychology and clinical neuropsychology, the study of brain-behavior relationships with a focus on applying this knowledge to human problems. The Division of Clinical Neuropsychology was established as a specialty organization within APA in 1980 and was formally recognized by APA in 1996 via the Committee for the Recognition of Specialties and Proficiencies in Professional Psychology". It has become one of APA's largest and most active divisions with over 4200 members worldwide. The Division of Clinical Neuropsychology has been instrumental in the development of clinical neuropsychology as a psychological specialty. This organization helped to establish policies and standards for practice and training in clinical neuropsychology as well as developed the definition of a clinical neuropsychologist, which has been used as a foundation by other neuropsychological organizations.
The Wechsler Test of Adult Reading (WTAR) is a neuropsychological assessment tool used to provide a measure of premorbid intelligence, the degree of Intellectual function prior to the onset of illness or disease.
The Chronic Effects of Neurotrauma Consortium or CENC is a federally funded research project devised to address the long-term effects of mild traumatic brain injury in military service personnel (SMs) and Veterans. Announced by President Barack Obama on August 20, 2013, the CENC was one of two major initiatives developed in response to the injuries incurred by U.S. service personnel during Operation Enduring Freedom and Operation Iraqi Freedom. The project is jointly funded in the amount of $62.175 million by the Department of Defense (DoD) and the Department of Veterans Affairs (VA). The CENC is led by Dr. David X. Cifu of the Virginia Commonwealth University.
Alison Nenos Cernich is an American neuropsychologist specializing in traumatic brain injury and computerized neuropsychological assessment. She is the deputy director of the Eunice Kennedy Shriver National Institute of Child Health and Human Development. Cernich was previously deputy director of the Defense Centers of Excellence for Psychological Health and Traumatic Brain Injury, assistant professor of neurology at University of Maryland School of Medicine, and chief of neuropsychology at the VA Maryland Health Care System.
Makarena Diana Dudley, also known as Margaret Dudley, is a New Zealand clinical psychologist, neuropsychologist and academic, specialising in neuropsychology, dementia and Māori health psychology research. She is currently one of the co-directors of the clinical psychology programme at the University of Auckland. In 2016, Dudley became the first permanent Māori clinical psychology lecturer employed at the University of Auckland. Dudley's iwi include Te Rarawa, Te Aupōuri and Ngāti Kahu.
References
- 1 2 Sokoler Steiner, Nancy (July 19, 2013). "The powers and pitfalls of the boomer brain". Jewish Journal.
- ↑ Leedham, Beth (March 2013). "Member Spotlight". The Los Angeles Psychologist.
- ↑ "National Academy of Neuropsychology, Inc.". NAN Foundation.
- ↑ "Board of Directors - Los Angeles Psychological Association". LACPA.
- ↑ "A Neuropsychologist That You Should Get to Know". Psy Doc Info. February 9, 2015.
- 1 2 "The Dr. Dee Show - KABC-AM". KABC-AM.