Glyn Humphreys – författare

Some of the most fascinating deficits in neuropsychology concern the failure to recognise common objects from one semantic category, such as living things, when there is no such difficulty with objects from another, such as non-living things. Over the past twenty years, numerous cases of these 'category specific' recognition and naming problems have been documented and several competing theories have been developed to account for the patients' disorders.Category Specificity in Brain and Mind draws together the neuropsychological literature on category-specific impairments, with research on how children develop knowledge about different categories, functional brain imaging work and computational models of object recognition and semantic memory. The chapters are written by internationally leading psychologists and neuroscientists and the result is a review of the most up-to-date thinking on how knowledge about different categories is acquired and organized in the mind, and where it is represented in the human brain. The text will be essential reading for advanced undergraduates and researchers in the field of category specificity and a rich source of information for neuropsychologists, experimental and developmental psychologists, cognitive scientists and philosophers.

Over the past forty years much work has assessed how attention modulates perception, but relatively little work has evaluated the role of attention in action. This is despite the fact that recent research indicates that the relation between attention and action is a crucial factor in human performance. Attention in Action provides state-of-the-art discussion of the role of attention in action and of action in constraining attention. The research takes an interdisciplinary approach covering experimental studies of attention and action, neuropsychological studies of patients with impaired action and attention, single cell studies of cross-modal links in attention and action, and brain imaging studies on the underlying neural circuitry. Contributions from prominent international researchers both review the field and present new evidence, making this book an invaluable resource for researchers and therapists alike.

The case study of John has provided a unique insight into the nature of visual agnosia and more broadly into the underlying processes which support human vision. After suffering a stroke, John had problems in recognizing common objects, faces, seeing colours, reading and finding his way around his environment. A Reader in Visual Agnosia brings together the primary scientific papers describing the detailed investigations for each visual problem which the authors carried out with John, known as patient HJA. This work was summarised initially in To See But Not To See (1987), and 26 years later in A Case Study in Visual Agnosia Revisited (2013). The chapters are divided into 6 parts corresponding to the key areas of investigation: Integrative visual agnosia Perception of global form Face perception Colour perception Word recognition Changes over timeEach part contains a short introduction, written by the two leading researchers who worked with John, which highlights the relations between the papers and demonstrates the pathway of the case analysis. The book will be invaluable to students and researchers in visual cognition, cognitive neuropsychology and vision neuroscience.

The case study of John has provided a unique insight into the nature of visual agnosia and more broadly into the underlying processes which support human vision. After suffering a stroke, John had problems in recognizing common objects, faces, seeing colours, reading and finding his way around his environment. A Reader in Visual Agnosia brings together the primary scientific papers describing the detailed investigations for each visual problem which the authors carried out with John, known as patient HJA. This work was summarised initially in To See But Not To See (1987), and 26 years later in A Case Study in Visual Agnosia Revisited (2013). The chapters are divided into 6 parts corresponding to the key areas of investigation: Integrative visual agnosia Perception of global form Face perception Colour perception Word recognition Changes over timeEach part contains a short introduction, written by the two leading researchers who worked with John, which highlights the relations between the papers and demonstrates the pathway of the case analysis. The book will be invaluable to students and researchers in visual cognition, cognitive neuropsychology and vision neuroscience.

Over the past forty years much work has assessed how attention modulates perception, but relatively little work has evaluated the role of attention in action. This is despite the fact that recent research indicates that the relation between attention and action is a crucial factor in human performance. Attention in Action provides state-of-the-art discussion of the role of attention in action and of action in constraining attention. The research takes an interdisciplinary approach covering experimental studies of attention and action, neuropsychological studies of patients with impaired action and attention, single cell studies of cross-modal links in attention and action, and brain imaging studies on the underlying neural circuitry. Contributions from prominent international researchers both review the field and present new evidence, making this book an invaluable resource for researchers and therapists alike.

Visual agnosia is a rare but fascinating disorder of visual object recognition that can occur after a brain lesion. This book documents the case of John, who worked intensively with the authors for 26 years after acquiring visual agnosia following a stroke. It revisits John’s case over twenty years after it was originally described in the book To See But Not To See, in 1987. As in the previous book, the condition is illuminated by John and his wife, Iris, in their own words.A Case Study in Visual Agnosia Revisited discusses John’s case in the context of research into the cognitive neuroscience of vision over the past twenty years. It shows how John’s problems in recognition can provide important insights into the way that object recognition happens in the brain, with the results obtained in studies of John’s perception being compared to emerging work from brain imaging in normal observers. The book presents a much fuller analysis of the variety of perceptual problems that John experienced, detailing not only his impaired object recognition but also his face processing, his processing of different visual features (colour, motion, depth), his ability to act on and negotiate his environment, and his reading and writing.A Case Study in Visual Agnosia Revisited will be a key reference for those concerned with understanding how vision is implemented in the brain. It will be suitable for both undergraduate students taking courses in cognitive psychology and neuropsychology, and also researchers in the cognitive neuroscience of vision. The presentation of John’s case, and the human aspects of the disorder, will also be of great interest to a general audience of lay people interested in perception.

Visual agnosia is a rare but fascinating disorder of visual object recognition that can occur after a brain lesion. This book documents the case of John, who worked intensively with the authors for 26 years after acquiring visual agnosia following a stroke. It revisits John’s case over twenty years after it was originally described in the book To See But Not To See, in 1987. As in the previous book, the condition is illuminated by John and his wife, Iris, in their own words.A Case Study in Visual Agnosia Revisited discusses John’s case in the context of research into the cognitive neuroscience of vision over the past twenty years. It shows how John’s problems in recognition can provide important insights into the way that object recognition happens in the brain, with the results obtained in studies of John’s perception being compared to emerging work from brain imaging in normal observers. The book presents a much fuller analysis of the variety of perceptual problems that John experienced, detailing not only his impaired object recognition but also his face processing, his processing of different visual features (colour, motion, depth), his ability to act on and negotiate his environment, and his reading and writing.A Case Study in Visual Agnosia Revisited will be a key reference for those concerned with understanding how vision is implemented in the brain. It will be suitable for both undergraduate students taking courses in cognitive psychology and neuropsychology, and also researchers in the cognitive neuroscience of vision. The presentation of John’s case, and the human aspects of the disorder, will also be of great interest to a general audience of lay people interested in perception.

First published in 2012. Routledge is an imprint of Taylor & Francis, an informa company.

First published in 2012. Routledge is an imprint of Taylor & Francis, an informa company.

This book constitutes the thoroughly refereed post-proceedings of the Second International Workshop on Attention and Performance in Computational Vision, WAPCV 2004, held in Prague, Czech Republic in May 2004.The 16 revised full papers presented together with an invited paper were carefully selected during two rounds of reviewing and improvement. The papers are organized in topical sections on attention in object and scene recognition, architectures for sequential attention, biologically plausible models for attention, and applications of attentive vision.

Some of the most fascinating deficits in neuropsychology concern the failure to recognise common objects from one semantic category, such as living things, when there is no such difficulty with objects from another, such as non-living things. Over the past twenty years, numerous cases of these 'category specific' recognition and naming problems have been documented and several competing theories have been developed to account for the patients' disorders.Category Specificity in Brain and Mind draws together the neuropsychological literature on category-specific impairments, with research on how children develop knowledge about different categories, functional brain imaging work and computational models of object recognition and semantic memory. The chapters are written by internationally leading psychologists and neuroscientists and the result is a review of the most up-to-date thinking on how knowledge about different categories is acquired and organized in the mind, and where it is represented in the human brain. The text will be essential reading for advanced undergraduates and researchers in the field of category specificity and a rich source of information for neuropsychologists, experimental and developmental psychologists, cognitive scientists and philosophers.