Dean–Woodcock Neuropsychological Assessment System
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Dean–Woodcock Neuropsychological Assessment System
The Dean–Woodcock Neuropsychological assessment, Neuropsychological Assessment System (DWNAS) provides a standardized procedure for assessing an individual's Sensory perception, sensory, Motor system, motor, emotional, cognitive, and academic functioning for both English and Spanish speakers, based on the Cattell–Horn–Carroll theory, Cattell–Horn–Carroll Model (CHC). The instrument may be administered by psychologists, that need not have clinical neuropsychology, neuropsychological backgrounds. It was developed by, and is named after, psychologists Raymond Dean and Richard Woodcock. The DWNB consists of the Dean–Woodcock Sensory-Motor Battery (DWSMB) (Dean & Woodcock, 2003c), the Dean–Woodcock Structured Neuropsychological Interview (Dean & Woodcock, 2003d), and the Dean–Woodcock Emotional Status Examination (Dean & Woodcock, 2003a). When the DWNAS is used with the Woodcock Johnson III (WJ III) (Woodcock, McGrew, & Mather, 2001), or the Bateria III Woodcock-Muñoz ( ...
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Neuropsychological Assessment
Over the past three millennia, scholars have attempted to establish connections between localized brain damage and corresponding behavioral changes. A significant advancement in this area occurred between 1942 and 1948, when Soviet neuropsychologist Alexander Luria developed the first systematic neuropsychological assessment, comprising a battery of behavioral tasks designed to evaluate specific aspects of behavioral regulation. During and following the Second World War, Luria conducted extensive research with large cohorts of brain-injured Russian soldiers. Among his most influential contributions was the identification of the critical role played by the frontal lobes of the cerebral cortex in neuroplasticity, behavioral initiation, planning, and organization. To assess these functions, Luria developed a range of tasks—such as the Go/no-go task, "count by 7," hands-clutching, clock-drawing task, repetitive pattern drawing, word associations, and category recall—which have sin ...
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Sensory Perception
Perception () is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment. All perception involves signals that go through the nervous system, which in turn result from physical or chemical stimulation of the sensory system.Goldstein (2009) pp. 5–7 Vision involves light striking the retina of the eye; smell is mediated by odor molecules; and hearing involves pressure waves. Perception is not only the passive receipt of these signals, but it is also shaped by the recipient's learning, memory, expectation, and attention. Gregory, Richard. "Perception" in Gregory, Zangwill (1987) pp. 598–601. Sensory input is a process that transforms this low-level information to higher-level information (e.g., extracts shapes for object recognition). The following process connects a person's concepts and expectations (or knowledge) with restorative and selective mechanisms, s ...
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Motor System
The motor system is the set of central nervous system, central and peripheral nervous system, peripheral structures in the nervous system that support motor functions, i.e. movement. Peripheral structures may include skeletal muscles and Efferent nerve fiber#Motor nerve, neural connections with muscle tissues. Central structures include cerebral cortex, brainstem, spinal cord, pyramidal system including the upper motor neurons, extrapyramidal system, cerebellum, and the lower motor neurons in the brainstem and the spinal cord. The motor system is a biological system with close ties to the muscular system and the circulatory system. To achieve motor skill, the motor system must accommodate the working state of the muscles, whether hot or cold, stiff or loose, as well as physiological fatigue. Pyramidal motor system The pyramidal tracts, pyramidal motor system, also called the pyramidal tract or the corticospinal tract, start in the motor center of the cerebral cortex.Rizzolatti ...
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Cognitive
Cognition is the "mental action or process of acquiring knowledge and understanding through thought, experience, and the senses". It encompasses all aspects of intellectual functions and processes such as: perception, attention, thought, imagination, intelligence, the formation of knowledge, memory and working memory, judgment and evaluation, reasoning and computation, problem-solving and decision-making, comprehension and production of language. Cognitive processes use existing knowledge to discover new knowledge. Cognitive processes are analyzed from very different perspectives within different contexts, notably in the fields of linguistics, musicology, anesthesia, neuroscience, psychiatry, psychology, education, philosophy, anthropology, biology, systemics, logic, and computer science. These and other approaches to the analysis of cognition (such as embodied cognition) are synthesized in the developing field of cognitive science, a progressively auton ...
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Psychologist
A psychologist is a professional who practices psychology and studies mental states, perceptual, cognitive, emotional, and social processes and behavior. Their work often involves the experimentation, observation, and explanation, interpretation of how individuals relate to each other and to their environments. Psychologists usually acquire a bachelor's degree in psychology, followed by a master's degree or doctorate in psychology. Unlike psychiatrist, psychiatrists and psychiatric nurse-practitioners, psychologists usually cannot prescribe medication, but depending on the jurisdiction, some psychologists with additional training can be licensed to prescribe medications; qualification requirements may be different from a bachelor's degree and master's degree. Psychologists receive extensive training in psychological testing, communication techniques, scoring, interpretation, and reporting, while psychiatrists are not usually trained in psychological testing. Psychologists are a ...
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Clinical Neuropsychology
Clinical neuropsychology is a subfield of psychology concerned with the applied science of brain-behaviour relationships. Clinical neuropsychologists apply their research to the assessment, diagnosis, treatment, and rehabilitation of patients with neurological, medical, neurodevelopmental, and psychiatric conditions. The branch of neuropsychology associated with children and young people is called pediatric neuropsychology. Clinical neuropsychology is a specialized form of clinical psychology focused on research as a focal point of treatment within the field. For instance, a clinical neuropsychologist will be able to determine whether a symptom was caused by a traumatic injury to the head or by a neurological/psychiatric condition. Another focus of a clinical neuropsychologist is to find cerebral abnormalities. Assessment is primarily by way of neuropsychological tests, but also includes patient history, qualitative observation, neuroimaging and other diagnostic medical proc ...
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Raymond Dean
Raymond S. Dean was an American psychologist and George and Frances Ball Distinguished Professor of Neuropsychology and Professor of Psychology at Ball State University. Early history Dean received a B.A. (Magna cum laude) in Psychology and an M.S. in Psychological Research and Psychometrics from State University of New York at Albany. As a Paracheck-Frazier Research Fellow, Dean was awarded a Ph.D. in school/child clinical psychology in 1978 by Arizona State University. His neuropsychological internship was at the Arizona Neuropsychiatric Hospital and postdoctoral training at the University of Wisconsin–Madison. Since that time, he remained an active scholar in Neuropsychology and held faculty appointments at the University of Wisconsin–Madison, University of North Carolina at Chapel Hill, Washington University School of Medicine, Distinguished Visiting Faculty of the NIMH Staff College, and Ball State University. From 1985, Dean concluded that the utility of neuropsych ...
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Richard Woodcock
Richard Wesley Woodcock (January 29, 1928 – January 2, 2024) was an American psychometrician. He is known for his work on the Cattell–Horn–Carroll theory of human intelligence and for his work in the development of several cognitive tests, including the Woodcock–Johnson Tests of Cognitive Abilities and the Dean–Woodcock Neuropsychological Assessment System. He is also credited with introducing the Rasch model into psychometrics, psychometric research. He was a fellow of the American Psychological Association and the American Academy of School Psychology, as well as a Diplomate of the American Board of Professional Psychology. In 1993, he received the Senior Scientist in School Psychology Award from Division 16 of the American Psychological Association. Two research institutes are named after him: the Woodcock Education Center at Western Oregon University, and the Woodcock Institute for Advancement of Neurocognitive Research and Applied Practice at Texas Woman's University ...
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