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An overview of knowledge about tactual-haptic perception.
Book Synopsis Tactual Perception by : William Schiff
Download or read book Tactual Perception written by William Schiff and published by Cambridge University Press. This book was released on 1982-03-31 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of knowledge about tactual-haptic perception.
Results of five studies on tactual perception, involving airjet stimulators and a computer-controlled facility, are given. In the first study, alphabetic shapes were presented on an 8x6 airjet array that was translated in a small circle. The increased performance with movement suggests a hypothetical model that qualitatively accounts for the display motion effects. The second study involved pairs of alphabetic shapes presented in rapid succession at the same anatomical location. The interaction effects were: increased letter reversals for short interstimulus intervals; more first-response errors for short-stimulus onset intervals and more second-response errors for long-stimulus intervals; a crossover in first- and second-response error rates of 100 to 200 msec after onset of the first stimulus. In the third study, point airjet stimuli were applied simultaneously to the 24 interjoint regions of the fingers. The results suggest a tactile short-term memory with greater capacity than immediate-memory span but with 0.8-sec decay rate. In the fourth study, visual and tactile stimuli giving equal mean simple reaction times were used. With increased response alternatives, mean visual times increased less than mean tactile times; but with simultaneous presentation of both stimulus types, mean reaction time was much shorter than with either type alone.
Book Synopsis Tactual Perception: Experiments and Models by : James Charles Bliss
Download or read book Tactual Perception: Experiments and Models written by James Charles Bliss and published by . This book was released on 1967 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of five studies on tactual perception, involving airjet stimulators and a computer-controlled facility, are given. In the first study, alphabetic shapes were presented on an 8x6 airjet array that was translated in a small circle. The increased performance with movement suggests a hypothetical model that qualitatively accounts for the display motion effects. The second study involved pairs of alphabetic shapes presented in rapid succession at the same anatomical location. The interaction effects were: increased letter reversals for short interstimulus intervals; more first-response errors for short-stimulus onset intervals and more second-response errors for long-stimulus intervals; a crossover in first- and second-response error rates of 100 to 200 msec after onset of the first stimulus. In the third study, point airjet stimuli were applied simultaneously to the 24 interjoint regions of the fingers. The results suggest a tactile short-term memory with greater capacity than immediate-memory span but with 0.8-sec decay rate. In the fourth study, visual and tactile stimuli giving equal mean simple reaction times were used. With increased response alternatives, mean visual times increased less than mean tactile times; but with simultaneous presentation of both stimulus types, mean reaction time was much shorter than with either type alone.
Future robots are expected to work closely and interact safely with real-world objects and humans alike. Sense of touch is important in this context, as it helps estimate properties such as shape, texture, hardness, material type and many more; provides action related information, such as slip detection; and helps carrying out actions such as rolling an object between fingers without dropping it. This book presents an in-depth description of the solutions available for gathering tactile data, obtaining aforementioned tactile information from the data and effectively using the same in various robotic tasks. The efforts during last four decades or so have yielded a wide spectrum of tactile sensing technologies and engineered solutions for both intrinsic and extrinsic touch sensors. Nowadays, new materials and structures are being explored for obtaining robotic skin with physical features like bendable, conformable, and stretchable. Such features are important for covering various body parts of robots or 3D surfaces. Nonetheless, there exist many more hardware, software and application related issues that must be considered to make tactile sensing an effective component of future robotic platforms. This book presents an in-depth analysis of various system related issues and presents the trade-offs one may face while developing an effective tactile sensing system. For this purpose, human touch sensing has also been explored. The design hints coming out of the investigations into human sense of touch can be useful in improving the effectiveness of tactile sensory modality in robotics and other machines. Better integration of tactile sensors on a robot’s body is prerequisite for the effective utilization of tactile data. The concept of semiconductor devices based sensors is an interesting one, as it allows compact and fast tactile sensing systems with capabilities such as human-like spatio-temporal resolution. This book presents a comprehensive description of semiconductor devices based tactile sensing. In particular, novel Piezo Oxide Semiconductor Field Effect Transistor (POSFET) based approach for high resolution tactile sensing has been discussed in detail. Finally, the extension of semiconductors devices based sensors concept to large and flexile areas has been discussed for obtaining robotic or electronic skin. With its multidisciplinary scope, this book is suitable for graduate students and researchers coming from diverse areas such robotics (bio-robots, humanoids, rehabilitation etc.), applied materials, humans touch sensing, electronics, microsystems, and instrumentation. To better explain the concepts the text is supported by large number of figures.
Book Synopsis Robotic Tactile Sensing by : Ravinder S. Dahiya
Download or read book Robotic Tactile Sensing written by Ravinder S. Dahiya and published by Springer Science & Business Media. This book was released on 2012-07-29 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Future robots are expected to work closely and interact safely with real-world objects and humans alike. Sense of touch is important in this context, as it helps estimate properties such as shape, texture, hardness, material type and many more; provides action related information, such as slip detection; and helps carrying out actions such as rolling an object between fingers without dropping it. This book presents an in-depth description of the solutions available for gathering tactile data, obtaining aforementioned tactile information from the data and effectively using the same in various robotic tasks. The efforts during last four decades or so have yielded a wide spectrum of tactile sensing technologies and engineered solutions for both intrinsic and extrinsic touch sensors. Nowadays, new materials and structures are being explored for obtaining robotic skin with physical features like bendable, conformable, and stretchable. Such features are important for covering various body parts of robots or 3D surfaces. Nonetheless, there exist many more hardware, software and application related issues that must be considered to make tactile sensing an effective component of future robotic platforms. This book presents an in-depth analysis of various system related issues and presents the trade-offs one may face while developing an effective tactile sensing system. For this purpose, human touch sensing has also been explored. The design hints coming out of the investigations into human sense of touch can be useful in improving the effectiveness of tactile sensory modality in robotics and other machines. Better integration of tactile sensors on a robot’s body is prerequisite for the effective utilization of tactile data. The concept of semiconductor devices based sensors is an interesting one, as it allows compact and fast tactile sensing systems with capabilities such as human-like spatio-temporal resolution. This book presents a comprehensive description of semiconductor devices based tactile sensing. In particular, novel Piezo Oxide Semiconductor Field Effect Transistor (POSFET) based approach for high resolution tactile sensing has been discussed in detail. Finally, the extension of semiconductors devices based sensors concept to large and flexile areas has been discussed for obtaining robotic or electronic skin. With its multidisciplinary scope, this book is suitable for graduate students and researchers coming from diverse areas such robotics (bio-robots, humanoids, rehabilitation etc.), applied materials, humans touch sensing, electronics, microsystems, and instrumentation. To better explain the concepts the text is supported by large number of figures.
This book explains the mechanisms underpinning the tactile perception of electrovibration and lays the groundwork for delivering realistic haptic feedback on touchscreens via this method. Effective utilization of electrovibration can only be accomplished by simultaneously investigating both the physical and perceptual aspects of the finger-touchscreen interaction. Towards this goal, present work blends the available knowledge on electromechanical properties of the human finger and human tactile perception with the results of new psychophysical experiments and physical measurements. By following such an approach that combines both theoretical and experimental information, the study proposes new methods and insights on generating realistic haptic effects, such as textures and edges on these displays. Besides, state-of-the-art research on the field is reviewed, and future work is discussed. The presented interdisciplinary methods and insights can interest students, broad communities of haptics, neuroscience, engineering, physics, and cognitive sciences, as well as user-interaction experts and product designers from the industry.
Book Synopsis Tactile Perception by Electrovibration by : Yasemin Vardar
Download or read book Tactile Perception by Electrovibration written by Yasemin Vardar and published by Springer Nature. This book was released on 2020-11-09 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the mechanisms underpinning the tactile perception of electrovibration and lays the groundwork for delivering realistic haptic feedback on touchscreens via this method. Effective utilization of electrovibration can only be accomplished by simultaneously investigating both the physical and perceptual aspects of the finger-touchscreen interaction. Towards this goal, present work blends the available knowledge on electromechanical properties of the human finger and human tactile perception with the results of new psychophysical experiments and physical measurements. By following such an approach that combines both theoretical and experimental information, the study proposes new methods and insights on generating realistic haptic effects, such as textures and edges on these displays. Besides, state-of-the-art research on the field is reviewed, and future work is discussed. The presented interdisciplinary methods and insights can interest students, broad communities of haptics, neuroscience, engineering, physics, and cognitive sciences, as well as user-interaction experts and product designers from the industry.
Texture accounts for an important part of the realism of simulated experiences, and it is most certainly true during tactile interaction. We usually experience roughness by running our fingers onto the explored surface. The perception of this fine texture is mediated by the vibrations generated by the encounters of the skin and the asperities of the surfaces. Reproduction of Tactual Textures presents factors that contribute to the mechanics of the interaction between a bare finger and a surface with a view to their artificial reproduction. It discusses the recording and reproduction of tactual textures, and analyses a case study of the development of a device able to record the vibratory signal from a fingertip sliding over a textured surface. The same device is then used in a reverse way to render those previously measured signals to the user’s fingertip. These developments open new questions about the biomechanical properties of the skin and their relation to perception. The second half of Reproduction of Tactual Textures focuses on the implication of the dynamic parameters of the skin onto rendering performance, and it concludes with a study on the important features that are present in the vibratory signal and their relation to texture perception. This state-of-the-art volume highlights the importance of the mechanics and biomechanics during the haptic exploration of surfaces and their possible contribution to perception. Collectively, the findings reported are pertinent to many applications, including robotic perception and the design of effective virtual reality systems.
Book Synopsis Reproduction of Tactual Textures by : Michaël Wiertlewski
Download or read book Reproduction of Tactual Textures written by Michaël Wiertlewski and published by Springer Science & Business Media. This book was released on 2013-01-04 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Texture accounts for an important part of the realism of simulated experiences, and it is most certainly true during tactile interaction. We usually experience roughness by running our fingers onto the explored surface. The perception of this fine texture is mediated by the vibrations generated by the encounters of the skin and the asperities of the surfaces. Reproduction of Tactual Textures presents factors that contribute to the mechanics of the interaction between a bare finger and a surface with a view to their artificial reproduction. It discusses the recording and reproduction of tactual textures, and analyses a case study of the development of a device able to record the vibratory signal from a fingertip sliding over a textured surface. The same device is then used in a reverse way to render those previously measured signals to the user’s fingertip. These developments open new questions about the biomechanical properties of the skin and their relation to perception. The second half of Reproduction of Tactual Textures focuses on the implication of the dynamic parameters of the skin onto rendering performance, and it concludes with a study on the important features that are present in the vibratory signal and their relation to texture perception. This state-of-the-art volume highlights the importance of the mechanics and biomechanics during the haptic exploration of surfaces and their possible contribution to perception. Collectively, the findings reported are pertinent to many applications, including robotic perception and the design of effective virtual reality systems.
The dominance of vision is so strong in sighted people that touch is sometimes considered as a minor perceptual modality. However, touch is a powerful tool which contributes significantly to our knowledge of space and objects. Its intensive use by blind persons allows them to reach the same levels of knowledge and cognition as their sighted peers.In this book, specialized researchers present the recent state of knowledge about the cognitive functioning of touch. After an analysis of the neurophysiology and neuropsychology of touch, exploratory manual behaviors, intramodal haptic (tactual-kinesthetic) abilities and cross-modal visual-tactual coordination are examined in infants, children and adults, and in non-human primates. These studies concern both sighted and blind persons in order to know whether early visual deprivation modifies the modes of processing space and objects. The last section is devoted to the technical devices favoring the school and social integration of the young blind: Braille reading, use of raised maps and drawings, sensory substitution displays, and new technologies of communication adapted for the blind. (Series B)
Book Synopsis Touching for Knowing by : Yvette Hatwell
Download or read book Touching for Knowing written by Yvette Hatwell and published by John Benjamins Publishing. This book was released on 2003-01-01 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dominance of vision is so strong in sighted people that touch is sometimes considered as a minor perceptual modality. However, touch is a powerful tool which contributes significantly to our knowledge of space and objects. Its intensive use by blind persons allows them to reach the same levels of knowledge and cognition as their sighted peers.In this book, specialized researchers present the recent state of knowledge about the cognitive functioning of touch. After an analysis of the neurophysiology and neuropsychology of touch, exploratory manual behaviors, intramodal haptic (tactual-kinesthetic) abilities and cross-modal visual-tactual coordination are examined in infants, children and adults, and in non-human primates. These studies concern both sighted and blind persons in order to know whether early visual deprivation modifies the modes of processing space and objects. The last section is devoted to the technical devices favoring the school and social integration of the young blind: Braille reading, use of raised maps and drawings, sensory substitution displays, and new technologies of communication adapted for the blind. (Series B)
The return to school following traumatic brain injury (TBI) is fraught with challenges for children and adolescents, their families, and school professionals. This volume provides the practical knowledge needed to understand the neuropsychological problems associated with TBI and facilitate students' reintegration into the regular or special education classroom. Research-based strategies are presented for assessing and accommodating each student's needs, with suggestions for testing that can be completed by practitioners without extensive neuropsychological training. Featuring numerous illustrative clinical examples, the book also includes an extended case history that brings to life the entire process of recovery from TBI. Reviewing basic neuroanatomy, the book first discusses the functional problems and areas of learning difficulty that typically arise from different types of injury. It explores the associated emotional challenges and issues facing families, emphasizing the importance of working closely with parents and building effective home-school partnerships. Identified and briefly described are over 30 psychological measures that can be used to evaluate cognitive and academic skills; memory and learning; attention; executive and reasoning skills; visual-motor and perceptual skills; and psychosocial, emotional, and behavioral functioning. Detailed sample assessments are provided for two students with injuries of varying severity, showing how test results and other information can be integrated into a useful comprehensive report. Guidelines are then presented for managing school reentry and conducting team-based planning and decision making. General programming considerations are discussed, as are specific interventions that incorporate knowledge from the fields of ADHD, learning disabilities, and adult rehabilitation. Written in a clear, non-technical style, this book is an essential resource for school psychologists, counselors, and social workers; special education professionals; and other clinicians working with young people. It will also serve as a text in graduate-level neuropsychological assessment courses.
Book Synopsis Traumatic Brain Injury in Children and Adolescents by : Margaret Semrud-Clikeman
Download or read book Traumatic Brain Injury in Children and Adolescents written by Margaret Semrud-Clikeman and published by Guilford Press. This book was released on 2001-08-01 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The return to school following traumatic brain injury (TBI) is fraught with challenges for children and adolescents, their families, and school professionals. This volume provides the practical knowledge needed to understand the neuropsychological problems associated with TBI and facilitate students' reintegration into the regular or special education classroom. Research-based strategies are presented for assessing and accommodating each student's needs, with suggestions for testing that can be completed by practitioners without extensive neuropsychological training. Featuring numerous illustrative clinical examples, the book also includes an extended case history that brings to life the entire process of recovery from TBI. Reviewing basic neuroanatomy, the book first discusses the functional problems and areas of learning difficulty that typically arise from different types of injury. It explores the associated emotional challenges and issues facing families, emphasizing the importance of working closely with parents and building effective home-school partnerships. Identified and briefly described are over 30 psychological measures that can be used to evaluate cognitive and academic skills; memory and learning; attention; executive and reasoning skills; visual-motor and perceptual skills; and psychosocial, emotional, and behavioral functioning. Detailed sample assessments are provided for two students with injuries of varying severity, showing how test results and other information can be integrated into a useful comprehensive report. Guidelines are then presented for managing school reentry and conducting team-based planning and decision making. General programming considerations are discussed, as are specific interventions that incorporate knowledge from the fields of ADHD, learning disabilities, and adult rehabilitation. Written in a clear, non-technical style, this book is an essential resource for school psychologists, counselors, and social workers; special education professionals; and other clinicians working with young people. It will also serve as a text in graduate-level neuropsychological assessment courses.
Book Synopsis Perception, Physics, and Reality by : Charlie Dunbar Broad
Download or read book Perception, Physics, and Reality written by Charlie Dunbar Broad and published by . This book was released on 1914 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
First Published in 1999. Routledge is an imprint of Taylor & Francis, an informa company.
Book Synopsis Indian Psychology by : Jadunath Sinha
Download or read book Indian Psychology written by Jadunath Sinha and published by Psychology Press. This book was released on 1999 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 1999. Routledge is an imprint of Taylor & Francis, an informa company.
Book Synopsis Handbook of Perception and Human Performance, Cognitive Processes and Performance by : Kenneth Boff
Download or read book Handbook of Perception and Human Performance, Cognitive Processes and Performance written by Kenneth Boff and published by Wiley-Interscience. This book was released on 1986-10-20 with total page 1358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
