Category specificity in normal recall


Book Description

Patients with category-specific agnosia (CSA) of the biological type have a disproportionate deficit in recognizing objects from biological categories. Bukach et al. (in press) have shown that a similar pattern of category specificity (CS) arises in normal subjects due to the interaction of structural and conceptual knowledge in the episodic retrieval of object knowledge. The current set of studies extends these findings in two ways: The first series of 4 experiments uses the newly learned attribute recall developed by Bukach et al. to investigate CS in the verbal modality. When word reading is mediated by meaning, recall of newly learned attributes assessed in the verbal modality showed a CS pattern, just as it does in patients with CSA of the biological type.. The second serie.s of 3 experiments examines recognition of object form and the nature of structural similarity by using novel stimuli that vary in the number of structural dimensions that are required to uniquely identify an object. I demonstrate that structural similarity can be understood as the proximity of exemplars in a multidimensional space defined by the diagnostic structural features that have been integrated in the current task. Competition of retrieved episodes based on their structural similarity comes from 2 sources: When the values of diagnostic dimensions are poorly specified, errors reflect competition from exemplars that are close (dimensional proximity). When an insufficient number of diagnostic dimensions are integrated, errors reflect competition from exemplars that share values on diagnostic dimensions (dimensionuZpaucity). I also present preliminary evidence that conceptual relatedness modulates the structural integration process. These results are related to CSA of the biological type, and are discussed in terms of an episodic model of object recognition in which object information is retrieved and integrated from distributed episodic memories.




Category Specificity in Brain and Mind


Book Description

This book aims to provide converging evidence as to how knowledge about different categories is represented in the brain, and how this knowledge develops.




Semantic Cognition


Book Description

A mechanistic theory of the representation and use of semantic knowledge that uses distributed connectionist networks as a starting point for a psychological theory of semantic cognition.




Neuropsychological Assessment of Neuropsychiatric and Neuromedical Disorders


Book Description

This is a major revision of a standard reference work for neuropsychologists, psychiatrists, and neurologists. About one-half of the book contains entirely new work by new contributors. New topics not covered in the previous editions include consideration of common sources of neurocognitive morbidity, such as multiple sclerosis, diabetes, and exposure to heavy metals; psychiatric and behavioral disorders associated wtih traumatic brain injury; neuropsychology in relation to everyday functioning; the effects of cognitive impairment on driving skills, and adherence to medical treatments. The Third Edition aims to reflect the enormous developments in neuropsychology in terms of research, clinical applications, and growth of the discipline during the past decade. At one time focused on mapping the cognitive and related consequences of brain injuries, research in neuropsychology has now expanded to much broader considerations of the effects of systemic disease, infection, medications, and inflammatory processes on neurocognition and emotion. The Third Edition attemtps to capture these developments while continuing to adhere to the objective of presenting them in a concise manner in a single volume.




Psychological Testing in the Service of Disability Determination


Book Description

The United States Social Security Administration (SSA) administers two disability programs: Social Security Disability Insurance (SSDI), for disabled individuals, and their dependent family members, who have worked and contributed to the Social Security trust funds, and Supplemental Security Income (SSSI), which is a means-tested program based on income and financial assets for adults aged 65 years or older and disabled adults and children. Both programs require that claimants have a disability and meet specific medical criteria in order to qualify for benefits. SSA establishes the presence of a medically-determined impairment in individuals with mental disorders other than intellectual disability through the use of standard diagnostic criteria, which include symptoms and signs. These impairments are established largely on reports of signs and symptoms of impairment and functional limitation. Psychological Testing in the Service of Disability Determination considers the use of psychological tests in evaluating disability claims submitted to the SSA. This report critically reviews selected psychological tests, including symptom validity tests, that could contribute to SSA disability determinations. The report discusses the possible uses of such tests and their contribution to disability determinations. Psychological Testing in the Service of Disability Determination discusses testing norms, qualifications for administration of tests, administration of tests, and reporting results. The recommendations of this report will help SSA improve the consistency and accuracy of disability determination in certain cases.




Case Studies in the Neuropsychology of Vision


Book Description

One important means to understanding normal cognitive functions is the study of the breakdown of these functions following brain damage. This book provides reviews of major case studies dealing with the breakdown of visual perception and recognition, including the disorders of motion vision, colour vision, perceptual integration, perceptual classification, recognition of particular categories of object, semantic access from vision (in optic aphasia), and recognition impairments with relative sparing of imagery. The cases are discussed in the light of studies that have followed since, and the chapters provide a context in which the contributions of the case studies can be evaluated.




Cardiovascular Diseases Related to Diabetes and Obesity, volume IV


Book Description

The dramatic increase in the prevalence of diabetes, obesity, and metabolic syndrome worldwide has seriously threatened human health since its associated complications cause high morbidity and mortality. Among the complications, cardiovascular diseases are the predominant component. Although various controls for blood glucose and blood pressure are applied, patients with diabetes or obesity and associated metabolic syndromes are still at high risk of developing various cardiovascular diseases, nephropathy, retinopathy, neuropathy, skin disorders, and male infertility. Therefore, we need to understand the mechanisms underlying the pathogenesis of these complications in order to develop more effective therapies to prevent or slow down the progression of diabetic or metabolic syndrome complications.




The Dementias


Book Description

The only guide to focus primarily on current molecular methods of diagnosis and early stage evaluation, this reference presents the latest techniques and technologies for dementia identification and evaluation, including neuropathological strategies, neuropsychological tests, biomarkers, CT, MRI, functional MRI, PET, and SPECT. Offering practical care and examination guidelines, each chapter provides findings that are particularly relevant for the assessment of disorders such as Alzheimer's disease, dementia with Lewy bodies, vascular dementia, and fronto-temporal dementia.




Applications of Computational Science in Artificial Intelligence


Book Description

Computational science, in collaboration with engineering, acts as a bridge between hypothesis and experimentation. It is essential to use computational methods and their applications in order to automate processes as many major industries rely on advanced modeling and simulation. Computational science is inherently interdisciplinary and can be used to identify and evaluate complicated systems, foresee their performance, and enhance procedures and strategies. Applications of Computational Science in Artificial Intelligence delivers technological solutions to improve smart technologies architecture, healthcare, and environmental sustainability. It also provides background on key aspects such as computational solutions, computation framework, smart prediction, and healthcare solutions. Covering a range of topics such as high-performance computing and software infrastructure, this reference work is ideal for software engineers, practitioners, researchers, scholars, academicians, instructors, and students.




The Science of False Memory


Book Description

Findings from research on false memory have major implications for a number of fields central to human welfare, such as medicine and law. Although many important conclusions have been reached after a decade or so of intensive research, the majority of them are not well known outside the immediate field. To make this research accessible to a much wider audience, The Science of False Memory has been written to require little or no background knowledge of the theory and techniques used in memory research. Brainerd and Reyna introduce the volume by considering the progenitors to the modern science of false memory, and noting the remarkable degree to which core themes of contemporary research were anticipated by historical figure such as Binet, Piaget, and Bartlett. They continue with an account of the varied methods that have been used to study false memory both inside and outside of the laboratory. The first part of the volume focuses on the basic science of false memory, revolving around three topics: old and new theoretical ideas that have been used to explain false memory and make predictions about it; research findings and predictions about false memory in normal adults; and research findings and predictions about age-related changes in false memory between early childhood and adulthood. Throughout Part I, Brainerd and Reyna emphasize how current opponent-processes conceptions of false memory act as a unifying influence by integrating predictions and data across disparate forms of false memory. The second part focuses on the applied science of false memory, revolving around four topics: the falsifiability of witnesses and suspects memories of crimes, including false confessions by suspects; the falsifiability of eyewitness identifications of suspects; false-memory reports in investigative interviews of child victims and witnesses, particularly in connection with sexual-abuse crimes; false memory in psychotherapy, including recovered memories of childhood abuse, multiple-personality disorders, and recovered memories of previous lives. Although Part II is concerned with applied research, Brainerd and Reyna continue to emphasize the unifying influence of opponent-processes conceptions of false memory. The third part focuses on emerging trends, revolving around three expanding areas of false-memory research: mathematical models, aging effects, and cognitive neuroscience. False Memory will be an invaluable resource for professional researchers, practitioners, and students in the many fields for which false-memory research has implications, including child-protective services, clinical psychology, law, criminal justice, elementary and secondary education, general medicine, journalism, and psychiatry.