Self Motion Perception And Multisensory Integration In Older Adults

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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.

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.

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.

The Intersection Of Cognitive Motor And Sensory Processing In Aging Links To Functional Outcomes

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Author : Jeannette R. Mahoney
language : en
Publisher: Frontiers Media SA
Release Date : 2022-10-07

The Intersection Of Cognitive Motor And Sensory Processing In Aging Links To Functional Outcomes written by Jeannette R. Mahoney and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-07 with Science categories.

Perception Control Of Self Motion

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Author : Rik Warren
language : en
Publisher: Psychology Press
Release Date : 1990

Perception Control Of Self Motion written by Rik Warren and has been published by Psychology Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Psychology categories.

First Published in 1990. Routledge is an imprint of Taylor & Francis, an informa company.

Neural Mechanisms Of Multisensory Cue Integration For Self Motion Perception

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Author : Christopher Robert Fetsch
language : en
Publisher:
Release Date : 2009

Neural Mechanisms Of Multisensory Cue Integration For Self Motion Perception written by Christopher Robert Fetsch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

Human Body Perception From The Inside Out

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Author : Günther Knoblich
language : en
Publisher: Oxford University Press
Release Date : 2006-01-05

Human Body Perception From The Inside Out written by Günther Knoblich 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 2006-01-05 with Psychology categories.

As the general notion of cognition has recently broadened to include its embodied nature, researchers' accounts of perception have increasingly come to include the body's special status as a window on the world and to accommodate the specific perceptual requirements for identifying, interpreting, and interacting with other bodies. This volume presents a comprehensive overview of the rapid progress that has been made in understanding the human body and its relationship to perception. It will help to unify the relevant research from several independent areas of cognitive psychology and cognitive neuroscience and facilitate the development of an integrated framework for the study of human-body perception.

Human Self Motion Perception

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Author : Nadine Hummel
language : en
Publisher:
Release Date : 2016

Human Self Motion Perception written by Nadine Hummel and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

The Neural Bases Of Multisensory Processes

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Author : Micah M. Murray
language : en
Publisher: CRC Press
Release Date : 2011-08-25

The Neural Bases Of Multisensory Processes written by Micah M. Murray and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08-25 with Medical categories.

It has become accepted in the neuroscience community that perception and performance are quintessentially multisensory by nature. Using the full palette of modern brain imaging and neuroscience methods, The Neural Bases of Multisensory Processes details current understanding in the neural bases for these phenomena as studied across species, stages

Role Of Inner Ear In Self And Environment Perception

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Author : Alexis Bozorg Grayeli
language : en
Publisher: Frontiers Media SA
Release Date : 2020-03-11

Role Of Inner Ear In Self And Environment Perception written by Alexis Bozorg Grayeli and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-11 with categories.