Visually Impaired Adults
Visually Impaired Adults - Related Videos
08:34
Thinking Too Much Impairs Decision-Making
0 Views •
2023
Source: Peter Mende-Siedlecki & Jay Van Bavel—New York University When we are considering a tough choice between two or more attractive options, we often end up actively weighing the pros and cons of each alternative. By reflecting on their advantages and disadvantages, we attempt to fit a complex, subjective decision into an orderly set of criteria. However, research in psychology suggests that this sort of introspective approach might not always yield the most optimal outcomes.1 In other...
07:52
An Automated System for Sound Localization Testing in Hearing-Impaired Listeners
0 Views •
2026
This protocol introduces an automated sound localization testing system with precise loudspeaker placement and integrated response analysis, validated in normal-hearing participants and participants with single-sided deafness. It provides a reproducible method to assess spatial hearing and supports functional classification using the International Classification of Functioning, Disability and Health (ICF) framework.
06:48
Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
0 Views •
Cited by 6 •
2019
This article describes how to implement a simple lexical decision experiment to assess written word recognition in neurologically healthy participants and in individuals with dementia and cognitive decline. We also provide a detailed description of reaction time analysis using principal components analysis (PCA) and mixed-effects modeling.
10:50
Visualizing Impairment of the Endothelial and Glial Barriers of the Neurovascular Unit during Experimental Autoimmune Encephalomyelitis In Vivo
0 Views •
Cited by 7 •
2019
Here, we present protocols to investigate impairment of the neurovascular unit during experimental autoimmune encephalomyelitis in vivo. We specifically address how to determine blood-brain barrier permeability and gelatinase activity involved in leukocyte migration across the glia...
02:39
Evaluating Motor Impairment in C. elegans Models Using the Radial Locomotion Assay
0 Views •
2025
This video demonstrates the use of a radial locomotion assay to evaluate motor dysfunction in C. elegans expressing either wild-type or ALS-mutant human TDP-43 protein. Worms with varying levels of wild-type or mutant TDP-43 expression are allowed to crawl, and their movement is measured by the radial distance traveled from the central point on the assay plate. The assay distinguishes between mild, moderate, and severe motor impairments based on the distance traveled by the different C. elegans...
FAQs
Reduced visual input can increase reliance on hearing, touch, memory, and predictable environmental patterns. These channels may help a person detect information, remember routes, and anticipate changes that vision would normally reveal. The resulting behavior is not uniform, because available sensory information, learned strategies, personal experience, and environmental accessibility all influence how effectively someone responds to surroundings.
Structured routines can make daily activities more predictable when visual monitoring is limited. Familiar sequences and remembered environmental arrangements may reduce uncertainty during navigation or other tasks. Their value depends on whether surroundings remain consistent and accessible. Changes to layouts, obstacles, or available support can alter behavior, showing why environmental conditions should be considered alongside individual adaptation.
Researchers compare behavior across different environmental conditions rather than attributing every difficulty to visual impairment itself. An inaccessible layout, insufficient environmental information, or limited support may create barriers that affect participation and independence. Separating these influences improves behavioral interpretation and helps identify whether an intervention should target individual skills, environmental design, accessibility, or a combination of these factors.
Behavioral adaptation varies because people differ in experience, learned strategies, sensory reliance, memory, routines, and access to supportive conditions. Two adults may therefore respond differently to the same environmental demand. This variability cautions against treating observed behavior as a fixed consequence of visual impairment and supports individualized assessment, training, and accessibility planning.
Assessment should examine how a person receives environmental information, navigates surroundings, uses hearing or touch, remembers routes, and responds to structured or changing conditions. It should also document accessibility barriers and available supports. This broader approach helps distinguish functional behavior from environmental restriction and can guide orientation and mobility training, assistive technology decisions, and rehabilitation goals.
Findings can guide orientation and mobility training, selection or development of assistive technology, and changes to environments that improve access to information. Researchers can evaluate whether these supports increase independence, participation, or well-being while reducing barriers. In behavior research, this application is important because improved outcomes may result from changing surroundings, strengthening adaptive strategies, or both.