Glyn W. Humphreys – författare

Over the past 15 years there have been considerable advances in understanding visual processing. These advances have been fuelled by such developments as, among others, the use of powerful computing systems that enable processing algorithms to be carried out in real time, the application of experimental paradigms developed with normal observers to provide more accurate analyses of patients with impaired vision, and the development of new learning algorithms that can be applied in artificial neural networks. The study of vision is a study in which researchers from different disciplinary backgrounds - computer science, neuropsychology, cognitive science, artificial intelligence - can usefully cooperate and share the research results and developments from the individual fields. Indeed, it is likely that future advances will depend on just such interdisciplinary collaborations. "Understanding Vision" brings together leading researchers from the different disciplines. The contributors attempt to provide a state-of-the-art review of work being carried out in their field, together with a discussion of how this work fits in to the broader perspective of vision research.

The chapters in this new book span the range of reading processes from early visual analysis to semantic influences on word identification, thus providing a state-of-the-art summary of current work and offering important contributions to prospective reading research. Basic Processes in Reading examines both future plans and past accomplishments in the world of word identification research. Three chapters provide a futuristic view taking a parallel distributed processing approach to semantic priming, phonology, and the identification of old words and the learning of new words. Reviews on eye movements in reading and semantic priming on word identification provide a retrospective summary of work on these issues as well as solid pointers for future investigations. Other chapters provide new demonstrations of the importance of phonological contributions to word identification, of interactive processes in the identification of handwritten words, and a re-evaluation of the processes involved in the neuropsychological syndrome described as "letter-by-letter" reading.

The chapters in this new book span the range of reading processes from early visual analysis to semantic influences on word identification, thus providing a state-of-the-art summary of current work and offering important contributions to prospective reading research. Basic Processes in Reading examines both future plans and past accomplishments in the world of word identification research. Three chapters provide a futuristic view taking a parallel distributed processing approach to semantic priming, phonology, and the identification of old words and the learning of new words. Reviews on eye movements in reading and semantic priming on word identification provide a retrospective summary of work on these issues as well as solid pointers for future investigations. Other chapters provide new demonstrations of the importance of phonological contributions to word identification, of interactive processes in the identification of handwritten words, and a re-evaluation of the processes involved in the neuropsychological syndrome described as "letter-by-letter" reading.

Vision allows us to do many things. It enables us to perceive a world composed of meaningful objects and events. It enables us to track those events as they take place in front of our eyes. It enables us to read. It provides accurate spatial information for actions such as reaching for or avoiding objects. It provides colour and texture that can help us to separate objects from their background, and so forth. This book is concerned with understanding the processes that allow us to carry out these various visually driven behaviours. In the past ten years our understanding of visual processing has undergone a rapid change, primarily fostered by the convergence of computational, experimental and neuropsychological work on the topic. Visual Cognition provides the first major attempt to cover all aspects of this work within a single text. It provides a summary of research on visual information processing, relevant to advanced undergraduates, postgraduates and research workers. It covers: seeing static forms, object recognition, dynamic vision (motion perception and visual masking), visual attention, visual memory, visual aspects of reading. For each topic, the relevant computational, experimental and neuropsychological work is integrated to provide a broader coverage than that of other texts.

BORB provides a set of standardised procedures for assessing neuropsychological disorders of visual object recognition, based on tests developed in the cognitive neuropsychological literature. The tests are introduced in terms of cognitive neuropsychological analyses of object recognition, and guidance is given concerning test use and interpretation. The tests assess low-level aspects of visual perception (using same-different matching of basic perceptual features, such as orientation, length, position and object size), intermediate visual processes (e.g., matching objects different in viewpoint), access to stored perceptual knowledge about objects (object decision), access to semantic knowledge (function and associative matches) and access to names from object (picture naming). BORB will serve as an invaluable companion test battery to the PALPA test of language ability.

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.

In the World Library of Psychologists series, international experts themselves present career-long collections of what they judge to be their finest pieces - extracts from books, key articles, salient research findings, and their major practical theoretical contributions. Glyn Humphreys is an internationally renowned cognitive neuropsychologist with research interests covering object recognition and its disorders, visual word recognition, object and spatial attention, the effects of action on cognition, and social cognition. Within the field of Psychology he has won a number of prestigious awards, including the Spearman Medal, the President’s Award of the British Psychological Society, and the Donald Broadbent Prize from the European Society for Cognitive Psychology. This collection reflects the different directions in his work and approaches which have been adopted. It will enable the reader to trace key developments in cognitive neuropsychology in a period of rapid change over the last thirty years. A newly written introduction contextualises the selection in relation to changes in the field during this time. Attention, Perception and Action will be invaluable reading for students and researchers in visual cognition, cognitive neuropsychology and vision neuroscience.

Originally published in 1987, this book, attempted to bring together work by researchers concerned with the functional and neurological mechanisms underlying visual object processing, and the ways in which such mechanisms can be neurologically impaired. The editors termed it a ‘Cognitive Neuropsychological’ approach, because they believed it tried to relate evidence from neurological impairments of visual object processing to models of normal performance in a new and important way. Two broad aims are apparent. One is to test models of normal performance by evaluating how well the models account for the patterns of impairment and preservation of abilities that can occur following brain damage. The other is to use models of normal performance to further their understanding of acquired disorders of visual object processing. These aims distinguish the approach from neuropsychological work whose primary aim is to relate acquired deficits to the sites of damage, and from work in the field of cognitive psychology which attempts only to develop models of normal performance.

Originally published in 1987, this book, attempted to bring together work by researchers concerned with the functional and neurological mechanisms underlying visual object processing, and the ways in which such mechanisms can be neurologically impaired. The editors termed it a ‘Cognitive Neuropsychological’ approach, because they believed it tried to relate evidence from neurological impairments of visual object processing to models of normal performance in a new and important way. Two broad aims are apparent. One is to test models of normal performance by evaluating how well the models account for the patterns of impairment and preservation of abilities that can occur following brain damage. The other is to use models of normal performance to further their understanding of acquired disorders of visual object processing. These aims distinguish the approach from neuropsychological work whose primary aim is to relate acquired deficits to the sites of damage, and from work in the field of cognitive psychology which attempts only to develop models of normal performance.

In the World Library of Psychologists series, international experts themselves present career-long collections of what they judge to be their finest pieces - extracts from books, key articles, salient research findings, and their major practical theoretical contributions. Glyn Humphreys is an internationally renowned cognitive neuropsychologist with research interests covering object recognition and its disorders, visual word recognition, object and spatial attention, the effects of action on cognition, and social cognition. Within the field of Psychology he has won a number of prestigious awards, including the Spearman Medal, the President’s Award of the British Psychological Society, and the Donald Broadbent Prize from the European Society for Cognitive Psychology. This collection reflects the different directions in his work and approaches which have been adopted. It will enable the reader to trace key developments in cognitive neuropsychology in a period of rapid change over the last thirty years. A newly written introduction contextualises the selection in relation to changes in the field during this time. Attention, Perception and Action will be invaluable reading for students and researchers in visual cognition, cognitive neuropsychology and vision neuroscience.

Following different kinds of brain damage, including stroke, head injury, carbon monoxide poisoning, and degenerative change, people can experience a range of cognitive problems, in addition to any difficulties in motor function. These problems strongly influence a patient’s ability to recover, but often patients are not routinely screened to detect them.BCoS Cognitive Screen is a new test instrument. The test pack consists of a manual, a ringbound Test Book, the Auditory Attention Test stimuli on CD, a pack of 15 Examiner Booklets, a pack of 15 Examinee booklets, and a set of test objects, all contained in a durable messenger bag.Developed to screen patients for cognitive problems, it provides a novel 'cognitive profile' across a range of cognitive processes within a one-hour testing session, that will indicate whether a patient has a clinical impairment (related to norms) in five primary domains of cognition: Attention and executive function Language Memory Number skills Praxis and actionBCoS has been validated against ‘standard’ neuropsychological tests used to measure similar cognitive functions. It has also been used for prognostic modelling, and assessed against measures of cognition and activities of everyday living for patients in the chronic stage. The first test of its kind, BCoS is an invaluable tool for neuropsychologists, neuropsychiatrists, occupational and speech therapists, and a wide range of other clinical practitioners.Training on administration of the assessment is available from http://www.cognitionmatters.co.uk/The following items are available as free downloads from http://www.cognitionmatters.co.uk/ or buy them from Psychology Press:BCoS Examiner's Booklet (Pack of 15): http://www.psypress.com/birmingham-cognitive-screen-9781848721074BCoS Examinee's Booklet (Pack of 15): http://www.psypress.com/birmingham-cognitive-screen-9781848721081BCoS Examiner's Booklet B (Pack of 15): http://www.psypress.com/birmingham-cognitive-screen-9781848721104BCoS is supported by the Stroke Association, http://www.stroke.org.uk/