Multi Sensory Integration In Motion Perception

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Multisensory Integration In Speech And Motion Perception

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Author : Lars Arne Ross
language : en
Publisher:
Release Date : 2008

Multisensory Integration In Speech And Motion Perception written by Lars Arne Ross and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Perception categories.

Multi Sensory Integration In Motion Perception

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Author : Clayton D. Rothwell
language : en
Publisher:
Release Date : 2014

Multi Sensory Integration In Motion Perception written by Clayton D. Rothwell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Auditory perception categories.

Previous experiments have attempted to measure smooth pursuit eye movements (SPEM) to acoustic targets with limited success. Some studies found no evidence for SPEM (Gauthier and Hofferer, 1967; Schaefer et al., 1981; Boucher et al., 2004; Berryhill et al., 2006) and other studies found only a sub-set of subjects could produce SPEM, which was poor in quality (Krukowski et al., 2001; Hashiba et al., 1996; Cloninger et al., 2013, 2014). These findings are despite evidence of auditory motion perception and an auditory motion aftereffect in the psychoacoustic literature (Carlile and Best, 2002; Dong et al., 2000). This thesis explored a multi-modal question, whether sounds can facilitate or interfere with pursuit of a visual target by moving congruent with or incongruent with linear visual motion, and did so using high-fidelity eye tracking that allowed for examination of the main pursuit characteristics: latency, open-loop acceleration, open-loop peak acceleration, steady-state gain (i.e., eye velocity/ target velocity), and number of “catch-up” saccades. Results showed evidence of facilitation in some characteristics (open-loop peak acceleration) but no evidence of interference, possibly due to the strength of the visual stimulus.

Updates On Multisensory Perception From Neurons To Cognition

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Author : Angelo Maravita
language : en
Publisher: Frontiers E-books
Release Date :

Updates On Multisensory Perception From Neurons To Cognition written by Angelo Maravita and has been published by Frontiers E-books this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.

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.

Self Motion Perception And Multisensory Integration In Older Adults

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Author : Grace A. Gabriel
language : en
Publisher:
Release Date : 2022

Self Motion Perception And Multisensory Integration In Older Adults written by Grace A. Gabriel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with Cognitive neuroscience categories.

Aging is associated with changes in how our brains combine sensory information when perceiving self-motion. Despite age-related changes in sensory integration, little is known about whether multisensory self-motion perception changes in older adults (OAs). Understanding such changes is important since OAs are particularly vulnerable to errors during self-motion, which can increase their risk of injury (e.g., when walking, driving). Vestibular cues are very important for self-motion perception, yet how vestibular perception changes with older age and age-related sensory declines is understudied. Therefore, in Chapter 2, I explored whether vestibular perceptual thresholds differ between healthy OAs (i.e., no sensory/cognitive decline) and younger adults (YAs), for two different motion types (heave and pitch). Thresholds were measured using two different perceptual tasks: 1) detection task, and 2) discrimination task. Postural stability was also assessed. OAs demonstrated higher (worse) detection thresholds than YAs for both motions. Larger postural sway in OAs was also associated with higher vestibular thresholds.Age-related hearing loss (ARHL) is highly prevalent in OAs and is associated with increased falls risk. Therefore, using the same paradigm as Chapter 2, in Chapter 3 I evaluated whether higher vestibular perceptual thresholds are observed in individuals with ARHL than those with normal hearing. Here, OAs with ARHL showed higher pitch discrimination thresholds than those with normal hearing. Hearing loss in the low-frequency ranges also predicted worse pitch detection. Given that older age (Chapter 2) and ARHL (Chapter 3) were shown to predict poorer self-motion perception, in Chapter 4 I evaluated whether self-motion perception could be improved with training. Specifically, I trained OAs and YAs on a visual-vestibular heading-discrimination task. While OAs showed poorer overall precision than YAs, both groups showed improved precision post-training for the sensory condition with the lowest pre-training precision (visual-only). A sub-group of OAs who initially could not perform the visual heading task demonstrated greatly improved performance post-training. Collectively, I show that while healthy aging and common age-related sensory declines may be associated with poorer self-motion perception, training can potentially be used to improve these abilities. Together, these results may have implications for informing fall/collision prevention strategies.

Multisensory Integration In Spatial Orientation And Self Motion Perception

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Author :
language : en
Publisher:
Release Date : 2015

Multisensory Integration In Spatial Orientation And Self Motion Perception written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.

Multisensory Perception And Action Psychophysics Neural Mechanisms And Applications

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Author : Zhuanghua Shi
language : en
Publisher: Frontiers E-books
Release Date : 2015

Multisensory Perception And Action Psychophysics Neural Mechanisms And Applications written by Zhuanghua Shi and has been published by Frontiers E-books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Neurosciences. Biological psychiatry. Neuropsychiatry categories.

Perception

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Author : Nicola Bruno
language : en
Publisher: Oxford University Press
Release Date : 2018-07-26

Perception written by Nicola Bruno and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-26 with Psychology categories.

The way that we interact with the environment on a daily basis is inherently multisensory. Even a simple task such as judging the location of a light in a dark room depends not only on vision but also on proprioceptive cues about the position of our body in space. The way that we experience food can be influenced not just by taste and smell, but by visual and auditory cues. Perception: A multisensory perspective adopts a multisensory approach to understanding perception. Rather than discussing each sense separately, this book defines perception as intrinsically multisensory from the start and examines multisensory interactions as the key process behind how we perceive our own body, control its movements, and perceive and recognise objects, space, and time. But the book delves even deeper. It discusses multisensory processing in conditions such as synaesthesia. It addresses attention and the role of multisensory processing in learning. By focussing on these domains, the authors highlight and identify general principles in the field of perception study and introduce models, experimental methods and pathologies that will be of interest to all those studying within the field of perception. The authors also illustrate applications that will be of interest to professionals whose work takes multisensory processing into account. As an introduction to the topic of multisensory perception, Perception: A multisensory perspective will be essential reading for students, from advanced undergraduate level through to postgraduate level in psychology, philosophy, and neuroscience. Those studying physiotherapy and neurological rehabilitation, human-computer interface development, or the design of products or services will also find this book of interest.

Age Related Changes In Multisensory Self Motion Perception

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Author : Robert Charles Ramkhalawansingh
language : en
Publisher:
Release Date : 2018

Age Related Changes In Multisensory Self Motion Perception written by Robert Charles Ramkhalawansingh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.

To derive the precise estimates of self-motion necessary to perform mobility-related tasks like walking and driving, humans integrate information about their movement from across their sensory systems (e.g. visual, auditory, proprioceptive, vestibular). However, recent evidence suggests that the way in which multiple sensory inputs are integrated by the adult brain changes with age. The objective of this thesis was to consider, for the first time, whether age-related changes in multisensory integration are observed in the context of self-motion perception. Two research approaches were used. First, I used a simple, simulated driving task to provide visual cues to self-motion and to manipulate the availability of auditory and/or vestibular cues to self-motion (i.e., unisensory versus multisensory conditions). The results revealed that relative to younger adults, older adults generally demonstrate greater differences in performance between multisensory and unisensory conditions. However, the driving task could not disentangle the effects of age-related differences in real-world driving experience from age-related differences in sensory integrative mechanisms. Second, I used an established and highly controlled psychophysical heading perception task to evaluate whether, like younger adults, older adults integrate visual and vestibular cues to self-motion in a statistically optimal fashion. I considered conditions where each of the two cues was presented alone, in combination and congruent, or in combination but indicating conflicting heading angles. Results showed that while older adults did demonstrate optimal integration during congruent conditions, they were comparatively less tolerant to spatial conflicts between the visual and vestibular inputs. Overall, these results may have important implications for the way that older adults perform mobility-related tasks under various perceptual and environmental conditions.

Enhancing Performance For Action And Perception

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Author :
language : en
Publisher: Elsevier
Release Date : 2011-07-06

Enhancing Performance For Action And Perception written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-07-06 with Science categories.

This volume of Progess in Brain Research follows on from the 32nd International Symposium of the Groupe de recherche sur le système nerveux central (GRSNC), May 2010, and aims to provide an overview of the various neural mechanisms that contribute to learning new motor and sensory skills, and to adapting to changed circumstances, including the use of devices and implants to substitute for lost sensory or motor abilities (brain machine interfaces). The focus is on recent developments covering five major themes: Mechanisms to improve motor performance Neuro-rehabilitation of motor function Mechanisms to enhance sensory perception Cross modal interationc for enhancing sensorimotor performance Assistive technologies to enhance sensorimotor performance Leading authors review the state-of-the-art in their field of investigation and provide their views and perspectives for future research Chapters are extensively referenced to provide readers with a comprehensive list of resources on the topics covered All chapters include comprehensive background information and are written in a clear form that is also accessible to the non-specialist

Visual Perception Part 2

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Author : Susana Martinez-Conde
language : en
Publisher: Elsevier
Release Date : 2006-10-06

Visual Perception Part 2 written by Susana Martinez-Conde and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-10-06 with Psychology categories.

This book presents a collection of articles reflecting state-of-the-art research in visual perception, specifically concentrating on neural correlates of perception. Each section addresses one of the main topics in vision research today. Part 2: Fundamentals of Awareness, Multi-Sensory Integration and High-Order Perception covers topics from filling-in to visual awareness to crossmodal interactions. A variety of methodological approaches are represented, including single-neuron recordings, fMRI and optical imaging, psychophysics, eye movement characterization and computational modelling. The contributions will provide the reader with a valuable perspective on the current status of vision research, and more importantly, with critical insight into future research directions and the discoveries yet to come. · Provides a detailed breakdown of the neural and psychophysical bases of Perception · Presents never-before-published original discoveries · Includes multiple full-color illustrations