Download or read book Ambiguity in Tactile Apparent Motion Perception written by Emanuela Liaci and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Background In von Schiller's Stroboscopic Alternative Motion (SAM) stimulus two visually presented diagonal dot pairs, located on the corners of an imaginary rectangle, alternate with each other and induce either horizontal, vertical or, rarely, rotational motion percepts. SAM motion perception can be described by a psychometric function of the dot aspect ratio ("AR", i.e. the relation between vertical and horizontal dot distances). Further, with equal horizontal and vertical dot distances (AR = 1) perception is biased towards vertical motion. In a series of five experiments, we presented tactile SAM versions and studied the role of AR and of different reference frames for the perception of tactile apparent motion. Methods We presented tactile SAM stimuli and varied the ARs, while participants reported the perceived motion directions. Pairs of vibration stimulators were attached to the participants' forearms and stimulator distances were varied within and between forearms. We compared straight and rotated forearm conditions with each other in order to disentangle the roles of exogenous and endogenous reference frames. Results Increasing the tactile SAM's AR biased perception towards vertical motion, but the effect was weak compared to the visual modality. We found no horizontal disambiguation, even for very small tactile ARs. A forearm rotation by 90° kept the vertical bias, even though it was now coupled with small ARs. A 45° rotation condition with crossed forearms, however, evoked a strong horizontal motion bias. Discussion Existing approaches to explain the visual SAM bias fail to explain the current tactile results. Particularly puzzling is the strong horizontal bias in the crossed-forearm conditions. In the case of tactile apparent motion, there seem to be no fixed priority rule for perceptual disambiguation. Rather the weighting of available evidence seems to depend on the degree of stimulus ambiguity, the current situation and on the perceptual strategy of the individual observer

Download or read book Perception of Moving Tactile Stimuli written by Marco Pino Vitello and published by Logos Verlag Berlin GmbH. This book was released on 2010 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Perceptual Organization written by Stephen Handel and published by Springer. This book was released on 2019-02-15 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: This textbook goes beyond introductory sensory perception by incorporating supplementary electronic materials to demonstrate the parallels between both hearing and seeing. Each chapter intermixes seeing and hearing processes so that students can easily understand that perceptual organization is the same across different kinds of sensations and modalities. Figures illustrating visual organization are paired with sound files demonstrating the analogous auditory organization. While most books on sensation and/or perception treat the senses individually there is growing awareness of just how important multisensory integration is to understanding the connection between sensory perception and cognition.

Download or read book Effects of Luminance and Contrast on Direction of Ambiguous Apparent Motion written by Stuart Anstis and published by . This book was released on 1984 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Somatosensory Research Methods written by Nicholas Paul Holmes and published by Springer Nature. This book was released on 2023-03-28 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides methods on the study of the systems of the brain. Chapters are divided into four parts covering; discriminative touch, proprioception and kinaesthesis, affective touch, individual differences due to atypical development, ageing, illusions and sensory substitution, microneurography, electrophysiology, brain imaging, and brain stimulation. In Neuromethods series style, chapters include the kind of detail and key advice from the specialists needed to get successful results in your research center and clinical investigation. Thorough and comprehensive, Somatosensory Research Methods aims to be comprehensive guide for researchers.

Download or read book Updates on multisensory perception from neurons to cognition written by Angelo Maravita and published by Frontiers E-books. This book was released on with total page 131 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years there has been a dramatic progress in understanding how stimuli from different sensory modalities are integrated among each other. Multisensory integration results in a unitary representation of the world that strongly characterizes perception and cognition in humans. Knowledge about multi sensory integration has research techniques and approaches, including neurophysiology, experimental psychology, neuropsychology, neuroimaging, and computational modelling. This special issue aims at presenting an up-to-date integrative overview of the physiological, psychological, developmental, and functional processes associated with multisensory integration. The proposed collection of papers is organized thematically into sections, each featuring a state-of-the-art review of key themes in multisensory research, from more approaches in the animal, to the study of multisensory perception and cognition in humans. Specifically, this special issue will consider: The physiological mechanisms of multisensory processing in cortical and subcortical brain structures of model animal species, (rat, cat, and monkey); current biologically inspired computational modelling of multisensory integration; evidence about the multisensory contributions to perception in humans, as highlighted by psychophysical and neuropsychological evidence; the neural basis of multisensory processing in the human brain uncovered by recent neuroimaging techniques, including EEG, PET, fMRI; the consequences of the breakdown of normal sensory integration as shown by studies with techniques of brain stimulation in humans; developmental processes of multisensory perception in humans and the constrains for the emergence of multisensory processes in relation to sensory experience; the issue of crossmodal neuroplasticity concerning behavioral and neural changes following sensory deprivation. The challenge of this Research Topic is to provide an interdisciplinary context allowing to understand the basic principles of multisensory integration in humans and the key issues that this fascinating field of study rises for future research.

Download or read book Multiple Mechanisms of Apparent Motion Perception written by Ching Elizabeth Ho and published by . This book was released on 2000 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biomechanics of the Tactile Perception of Friction written by Laurence Willemet and published by Springer Nature. This book was released on 2022-10-31 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Humans rely on their sense of touch to perceive subtle movements and micro slippages to manipulate an impressive range of objects. This incredible dexterity relies on fast and unconscious adjustments of the grip force that holds an object strong enough to avoid a catastrophic fall yet gentle enough not to damage it. The Biomechanics of the Tactile Perception of Friction covers how the complex mechanical interaction is perceived by the nervous system to quickly infer the state of the contact for a swift and precise regulation of the grip. The first part focuses on how humans assess friction at the contact initialization and the second part highlights an efficient coding strategy that the nervous system might use to continuously adjust the grip force to keep a constant safety margin before slippage. Taken together, these results reveal how the perception of frictional information is encoded in the deformation of our skin. The findings are useful for designing bio-inspired tactile sensors for robotics or prosthetics and for improving haptic human-machine interactions.

Download or read book Foundations of Vision written by Brian A. Wandell and published by Sinauer Associates, Incorporated. This book was released on 1995 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed for students, scientists and engineers interested in learning about the core ideas of vision science, this volume brings together the broad range of data and theory accumulated in this field.

Download or read book Perception and Its Modalities written by Dustin Stokes and published by Oxford University Press, USA. This book was released on 2015 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is about the many ways we perceive. Contributors explore the nature of the individual senses, how and what they tell us about the world, and how they interrelate. The volume begins to develop better paradigms for understanding the senses and perception.

Download or read book Perception of Apparent Motion Induced by Touch written by H. J. Penders and published by . This book was released on 1953 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Oxford Handbook of Perceptual Organization written by Johan Wagemans and published by OUP Oxford. This book was released on 2015-08-21 with total page 1121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perceptual organization comprises a wide range of processes such as perceptual grouping, figure-ground organization, filling-in, completion, perceptual switching, etc. Such processes are most notable in the context of shape perception but they also play a role in texture perception, lightness perception, color perception, motion perception, depth perception, etc. Perceptual organization deals with a variety of perceptual phenomena of central interest, studied from many different perspectives, including psychophysics, experimental psychology, neuropsychology, neuroimaging, neurophysiology, and computational modeling. Given its central importance in phenomenal experience, perceptual organization has also figured prominently in classic Gestalt writings on the topic, touching upon deep philosophical issues regarding mind-brain relationships and consciousness. In addition, it attracts a great deal of interest from people working in applied areas like visual art, design, architecture, music, and so forth. The Oxford Handbook of Perceptual Organization provides a broad and extensive review of the current literature, written in an accessible form for scholars and students. With chapter written by leading researchers in the field, this is the state-of-the-art reference work on this topic, and will be so for many years to come.

Download or read book Essentials of Sensation and Perception written by George Mather and published by Routledge. This book was released on 2014-01-21 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of sensation and perception looks at how we acquire, process, and interpret information about the outside world. By describing key ideas from first principles, this straightforward introduction provides easy access to the basic concepts in the subject, and incorporates the most recent advances with useful historical background. The text takes a uniquely integrative approach, highlighting fundamental findings that apply across all the senses - including vision, hearing, touch, pain, balance, smell and taste - rather than considering each sense in isolation. Several pedagogical features help students to engage with the material. ‘Key Term’ and ‘Key Concept’ boxes describe technical terms and concepts whilst ‘Question’ boxes relate the material to everyday questions about perception. Each chapter ends with suggestions for further reading, and the final chapter draws together the material from the previous chapters, summarizing the broad principles described, and outlining some major unresolved issues. Assuming no prior knowledge, this book is an accessible and up-to-date overview of the processes of human sensation and perception. Presented in full color, it is an ideal introduction for pre-undergraduate and first year undergraduate students on courses in psychology, as well as neuroscience and biology.

Download or read book Perception of Space and Motion written by William Epstein and published by Elsevier. This book was released on 1995-09-15 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past 25 years, the field of space and motion perception has rapidly advanced. Once thought to be distinct perceptual modes, space and motion are now thought to be closely linked. Perception of Space andMotion provides a comprehensive review of perception and vision research literature, including new developments in the use of sound and touch in perceiving space and motion. Other topics include the perception of structure from motion, spatial layout,and information obtained in static and dynamic stimulation. Spatial layoutStructure from motionInformation on static and dynamic stimulation (visual, acoustic, and haptic)

Download or read book The Subject s Matter written by Frederique De Vignemont and published by MIT Press. This book was released on 2017-12-15 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: An interdisciplinary and comprehensive treatment of bodily self-consciousness, considering representation of the body, the sense of bodily ownership, and representation of the self. The body may be the object we know the best. It is the only object from which we constantly receive a flow of information through sight and touch; and it is the only object we can experience from the inside, through our proprioceptive, vestibular, and visceral senses. Yet there have been very few books that have attempted to consolidate our understanding of the body as it figures in our experience and self-awareness. This volume offers an interdisciplinary and comprehensive treatment of bodily self-awareness, the first book to do so since the landmark 1995 collection The Body and the Self, edited by José Bermúdez, Naomi Eilan, and Anthony Marcel (MIT Press). Since 1995, the study of the body in such psychological disciplines as cognitive psychology, cognitive neuroscience, psychiatry, and neuropsychology has advanced dramatically, accompanied by a resurgence of philosophical interest in the significance of the body in our mental life. The sixteen specially commissioned essays in this book reflect the advances in these fields. The book is divided into three parts, each part covering a topic central to an explanation of bodily self-awareness: representation of the body; the sense of bodily ownership; and representation of the self. Contributors Adrian Alsmith, Brianna Beck, José Luis Bermúdez, Anna Berti, Alexandre Billon, Andrew J. Bremner, Lucilla Cardinali, Tony Cheng, Frédérique de Vignemont, Francesca Fardo, Alessandro Farnè, Carlotta Fossataro, Shaun Gallagher, Francesca Garbarini, Patrick Haggard, Jakob Hohwy, Matthew R. Longo, Tamar Makin, Marie Martel, Melvin Mezue, John Michael, Christopher Peacocke, Lorenzo Pia, Louise Richardson, Alice C. Roy, Manos Tsakiris, Hong Yu Wong

Download or read book Biographical Dictionary of Psychology written by Noel Sheehy and published by Routledge. This book was released on 2016-01-08 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Biographical Dictionary of Psychology provides biographical information and critical analysis of the influences and reception of over 500 people who have made a significant contribution to the field of psychology. Written by an international team of contributors, this volume charts the development of the practice of psychology worldwide from its emergence in the 1850s up to the present day. Biographies range from important historical figures to those who have had a more recent impact on the field, including: * Chris Argyris * Donald Broadbent * Kay Deaux * Leon Festinger * Sigmund Freud * Erich Fromm * Francis Galton * Eleanor Gibson * Doreen Kimur * Ulric Neisser * Jean Piaget * Herbert A. Simon * B.F. Skinner * Amos Tversky Entries are alphabetically organized and similarly structured for ease of access and allowing comparison of information. Introductory biographical details cover main fields of interest, nationality, principal appointments, honours, and places and dates of birth and death. This is followed by full bibliographic details of principal publications, as well as secondary and critical literature which provide a useful route into further research. Following on from there is an invaluable critical appraisal of the major achievements, influences and reception of the psychologists themselves. Thorough indexing allows the reader to access information by American Psychological Association subject division, key concepts, name and institution.

Download or read book Binocular Rivalry written by David Alais and published by MIT Press. This book was released on 2005 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent work on perceptual ambiguity and its implications for the correlation between neural events and perceptual experience. Researchers today in neuroscience and cognitive psychology increasingly turn their attention to binocular rivalry and other forms of perceptual ambiguity or bistability. The study of fluctuations in visual perception in the face of unchanging visual input offers a means for understanding the link between neural events and visual events, including visual awareness. Some neuroscientists believe that binocular rivalry reveals a fundamental aspect of human cognition and provides a way to isolate and study brain areas involved in attention and selection. The eighteen essays collected in Binocular Rivalry present the most recent theoretical and empirical work on this key topic by leading researchers in the field. After the opening chapter's overview of the major characteristics of binocular rivalry in their historical contexts, the contributors consider topics ranging from the basic phenomenon of perceptual ambiguity to brain models and neural networks. The essays illustrate the potential power of the study of perceptual ambiguity as a tool for learning about the neural concomitants of visual awareness, or, as they have been called, the "neural correlates of consciousness."