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AFB JOURNAL OVISUAL
IMPAIRMENT& BLINDNESS
  
Expanding possibilities for people with vision loss  
 

October 2005 • Volume 99 Number 10

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Journal of visual impairment and blindness

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Low Vision Simulators Plus VSRT (Pepper) Test LUV Reading Workbook

Talking Typer for Windows Multiple License

Cover of ECC Essentials with various icons representing the expanded core curriculum

Book cover shows silhouettes of adults/children with canes, in multicolored squares.

book cover with various photos of young children playing with toys and interacting with adults.
 
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Contents

SPECIAL ISSUE ON ORIENTATION AND MOBILITY

ARTICLES

Street Crossings

Blind Pedestrians and the Changing Technology and Geometry of Signalized Intersections: Safety, Orientation, and Independence—Janet M. Barlow, Billie Louise Bentzen, and Tamara Bond, print edition page(s) 587

Abstract: This study documented that blind pedestrians have considerable difficulty locating crosswalks, aligning to cross, determining the onset of the walk interval, maintaining a straight crossing path, and completing crossings before the onset of perpendicular traffic at complex signalized intersections. Revised techniques and strategies are suggested for alleviating these difficulties.

Crossroads: Modern Interactive Intersections and Accessible Pedestrian Signals—Janet M. Barlow and Lukas Franck, print edition page(s) 599

Abstract: This article discusses the interactive nature of modern actuated intersections and the effect of that interface on pedestrians who are visually impaired. Information is provided about accessible pedestrian signals (APS), the role of blindness professionals in APS installation decisions, and techniques for crossing streets with APS.

Modern Roundabouts: Access by Pedestrians Who Are Blind—Richard G. Long, David A. Guth, Daniel H. Ashmead, Robert Wall Emerson, and Paul E. Ponchillia, print edition page(s) 611

Abstract: This article describes the key differences between roundabouts and traditional intersections that have traffic signals or stop signs and discusses how these differences may affect the mobility of pedestrians who are visually impaired. It also provides a brief summary of the authors' research on this topic and suggests strategies for addressing the access issues that roundabouts sometimes create.

Canes

Human Factor Analysis of Long Cane Design: Weight and Length—Mark D. Rodgers and Robert Wall Emerson, print edition page(s) 622

Abstract: In a series of experiments, canes of different lengths, weights, and weight distributions were assessed to determine the effect of these characteristics on various performance measures. The results indicate that the overall weight of a cane and the distribution of weight along a cane's shaft do not affect a person's performance, but accuracy does decline with the amount of time a person wields the cane, so a heavier cane may exacerbate this fatigue.

Knowledge of and Preferences for Long Cane Components: A Qualitative and Quantitative Study—Grace Ambrose-Zaken, print edition page(s) 633

Abstract: This article reviews the literature on the various components of long canes and reports on a study of the knowledge and preferences of 100 adults with visual impairments regarding the various components and types of canes. Results indicated that the terrain of a route, weather conditions, mobility demand, and purpose of an outing are important factors when choosing a cane.

Personnel Preparation

Use of Digital Video to Assess Orientation and Mobility Observational Skills—Kim T. Zebehazy, George J. Zimmerman, and Lynn A. Fox, print edition page(s) 646

Abstract: This study compared the observational skills in orientation and mobility (O&M) of nine university students and nine certified O&M specialists using a digital video assessment. The students differed from the O&M specialists in their stylistic observations and the details of their responses. Implications for the improvement of video assessments are discussed.

Practice Report

Street Crossings: Analyzing Risks, Developing Strategies, and Making Decisions—Dona Sauerburger, print edition page(s) 659

Research Report

Establishing Mobility Measures to Assess the Effectiveness of Night Vision Devices: Results of a Pilot Study—Kim T. Zebehazy, George J. Zimmerman, Alex R. Bowers, Gang Luo, and Eli Peli, print edition page(s) 663

NEWS & FEATURES

Guest Editorial, print edition page(s) 579

Comment

Medicare Coverage for Orientation and Mobility Services—Lorraine Lidoff, print edition page(s) 584

From the Field, print edition page(s) 671

News, print edition page(s) 672

Calendar, print edition page(s) 672

JVIB thanks Kathleen M. Huebner, Ph.D., professor and associate dean of Graduate Studies in Vision Impairment and co-director of the National Center for Leadership in Vision Impairment at Pennsylvania College of Optometry and member of the JVIB Editorial Advisory Board, and William Weiner, Ph.D., vice provost for research and dean of the Graduate School at Marquette University, for their scholarship and commitment as guest editors for this special issue on orientation and mobility.


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(end advertisement)


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Touch or Sound Navigation Aids

These two electronic devices aid users who are blind or visually impaired with orientation and mobility.

'K9 Sonar: Sonic Perceptual Aid

By listening to the sounds that the 'K' Sonar produces, the blind user can determine not only the distance and location of an object, but can also learn about some of its features. Users can learn to recognize certain objects.

Use independently or attach to the golf grip handle of a long cane.

Headphones provide audio feedback, changing in pitch to indicate distance to the object being "scanned."

Two range modes: long range (about 16 feet) and short range (about 6 feet).

Miniguide US: Tactual Perceptual Aid

By feeling the Miniguide's vibrations, a user can determine the distance to objects--the faster the vibration, the closer the object Although the Miniguide provides optional audio feedback, it is ideal for deafblind persons.

Small, hand-held unit.

Five ranges from 25 to 1 1/2 feet.

American Printing House for the Blind, Inc.

800.223.1839 * info@aph.org * www.aph.org

(end advertisement)


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Freedom Scientific

1-800-444-4443

www.FreedomScientific.com

(end advertisement)


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