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Spatial updating in blind and sighted people

Mark Holllns, Elizabeth K. Kelley
1988 Perception & Psychophysics  
Four experiments were carried out to determine the accuracy with which early-blind and blindfolded sighted subjects could indicate the remembered positions of objects.  ...  Both groups of subjects demonstrated good updating ability when the method of responding was to replace objects in their original positions; when required to point to objects, however, blind subjects made  ...  For example, data that seem to indicate a relative slowness of mental rotation in blind people (Marmor & Zaback, 1976) may instead reflect only a greater stability of their haptic frame of reference  ... 
doi:10.3758/bf03208809 pmid:3362667 fatcat:kaacj77jhrdvrmupwmxuu3cima

The Haptic Müller-Lyer Illusion in Sighted and Blind People

Morton A Heller, Deneen D Brackett, Kathy Wilson, Keiko Yoneyama, Amanda Boyer, Heather Steffen
2002 Perception  
Preparation of this report and the research were supported by NIH Grant RO1-EY 12040. Faith Heller provided helpful comments on an earlier version of this manuscript.  ...  In haptic control conditions of that earlier experiment, subjects felt squares with their right hands, and chose comparison squares with their left hands.  ...  One reviewer questioned the appropriateness of the sighted comparison group, since they were much younger than the congenitally blind subjects.  ... 
doi:10.1068/p3340 pmid:12430951 fatcat:7v5dpqf56nconokytvlxxz66jm

Roughness perception in haptic virtual reality for sighted and blind people

Diana Kornbrot, Paul Penn, Helen Petrie, Stephen Furner, Andrew Hardwick
2007 Perception & Psychophysics  
The authors gratefully acknowledge the assistance of all the blind and sighted individuals who took part in these studies. Thanks also to three anonymous referees for their constructive comments.  ...  This article is based in part on a dissertation submitted by P.P. to the University of Hertfordshire in partial fulfillment of the PhD requirements.  ...  Haptic Perception by Blind and Sighted People There were no significant differences between the blind and sighted participants.  ... 
doi:10.3758/bf03193907 pmid:17727103 fatcat:fzj7ods4l5acrjnhdk6jdxdk4u

Spatial Representation of the Workspace in Blind, Low Vision, and Sighted Human Participants

Jacob S. Nelson, Irene A. Kuling, Monica Gori, Albert Postma, Eli Brenner, Jeroen B. J. Smeets
2018 i-Perception  
There were 132 participants with varying degrees of visual ability ranging from congenitally blind to normally sighted.  ...  It has been proposed that haptic spatial perception depends on one's visual abilities. We tested spatial perception in the workspace using a combination of haptic matching and line drawing tasks.  ...  Declaration of Conflicting Interests The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.  ... 
doi:10.1177/2041669518781877 pmid:29977492 pmcid:PMC6024533 fatcat:sfoaeouxtzgu3np6x7nm57oyra

Haptic Virtual Environments for Blind People: Exploratory Experiments with Two Devices

G Jansson, H Petrie, C Colwell, D. Kornbrot, J. Fänger, H. König, K. Billberger, A. Hardwick, S. Furner
1999 International Journal of Virtual Reality  
Both sighted (blindfolded in one study) and blind people served as participants.  ...  This paper is a fusion of two independent studies investigating related problems concerning the use of haptic virtual environments for blind people: a study in Sweden using a PHANToM 1.5 A and one in the  ...  Acknowledgements We would like to thank all the people who participated in these studies.  ... 
doi:10.20870/ijvr.1999.4.1.2663 fatcat:nrtw2h2bjrea3hdjzc3jllamyy

Mechanisms in the haptic horizontal-vertical illusion: Evidence from sighted and blind subjects

Morton A. Heller, Tamala D. Joyner
1993 Perception & Psychophysics  
In Experiment 1, the illusion was relatively weak in sighted subjects and depended on stimulus size and the nature of the figure, that is, whether the pattern was an inverted-T or L shape.  ...  These results support the idea that visual experience may alter haptic judgments in sighted and late blind subjects.  ...  Thus, any illusory effects were a joint effect of haptics and a history of vision in the late blind and sighted subjects.  ... 
doi:10.3758/bf03206785 pmid:8483705 fatcat:ufefyj6fwjhpfccmol4soi55dm

Visuo-spatial processes as a domain-general factor impacting numerical development in atypical populations

Virginie Crollen, Olivier Collignon, Marie-Pascale Noël
2017 Journal of Numerical Cognition  
In the past few years, the role of both domain-specific and domain-general factors on numerical development and mathematics achievement has been debated.  ...  We will show that math abilities of each population are relatively unique and are not necessarily associated with generalized math impairment.  ...  In another experiment, blind and sighted people were asked to haptically explore rods of different lengths and indicate their midpoints.  ... 
doi:10.5964/jnc.v3i2.44 fatcat:pklums3zibfsfh2uympwvigiu4

The role of haptic versus visual volume cues in the size-weight illusion

R. R. Ellis, S. J. Lederman
1993 Perception & Psychophysics  
Experiment 1 documents, across a broad range of stimulus weights and volumes, the existence of a purely haptic size-weight illusion, equal in strength to the traditional illusion.  ...  In contrast, visual volume cues are merely sufficient, and produce a relatively weaker effect.  ...  We would particularly like to express our appreciation to the Montreal Association for the Blind (Paul Barber was especially helpful in assisting us) and to the subjects who participated in Experiment  ... 
doi:10.3758/bf03205186 pmid:8483695 fatcat:nbtkgefywnfilclhhqtngj5jzm

The haptic oblique effect in the perception of rod orientation by blind adults

Edouard Gentaz, Yvette Hatwell
1998 Perception & Psychophysics  
If visual experience participated in the haptic oblique effect, we should observe no oblique effect in early blind subjects in the conditions of manual exploration where late blind and blindfolded sighted  ...  The haptic perception of vertical, horizontal, +45 0 oblique, and + 135 0 oblique orientations was studied in completely blind adults.  ...  Therefore, the comparison of the haptic oblique effect in early blind, late blind, and blindfolded sighted people should allow an evaluation of the role of visual experience in its manifestation.  ... 
doi:10.3758/bf03211925 pmid:9503919 fatcat:jm6mothagvecxe5srqfyh4ps7y

Spatial Knowledge via Auditory Information for Blind Individuals: Spatial Cognition Studies and the Use of Audio-VR

Amandine Afonso-Jaco, Brian F. G. Katz
2022 Sensors  
We present a review of several studies employing the power of spatial audio virtual reality for research in spatial cognition with blind individuals.  ...  the relative positions of surrounding landmarks when one is moving.  ...  The funders had no role in the design of the studies; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.  ... 
doi:10.3390/s22134794 pmid:35808291 pmcid:PMC9268803 fatcat:dmnwvoigjvapfnr6qwirtchlva

The blind driver challenge

Burkay Sucu, Eelke Folmer
2014 Proceedings of the 16th international ACM SIGACCESS conference on Computers & accessibility - ASSETS '14  
Self-driving vehicles could significantly improve the mobility of blind people, but current legislation often requires a legal driver to be present in the vehicle who can take over in case of a malfunction  ...  User studies with six blind and sighted subjects identify what accuracy is required and possible using our interface to steer a vehicle on a track using a simulator.  ...  ACKNOWLEDGEMENTS We thank the local chapter of the National Federation of the Blind for help with recruiting subjects for our user study.  ... 
doi:10.1145/2661334.2661357 dblp:conf/assets/SucuF14 fatcat:3nzgjuxiejajhmde2hgnkjdm2e

Assessing haptic properties for data representation

Steven A. Wall, Steven A. Brewster
2003 CHI '03 extended abstracts on Human factors in computing systems - CHI '03  
Thus, it is proposed that graphical data could be made more easily accessible to blind users by scaling the data values to friction rather than shape or size, as in traditional bar charts.  ...  Research has shown that the PHANToM is effective at displaying graphical information to blind people, but the techniques used so far have been very simple.  ...  However, visualisations such as these rely on the distributed nature of the visual sense to identify trends in the data through perception and comparison of shape and size.  ... 
doi:10.1145/765891.766034 dblp:conf/chi/WallB03 fatcat:evr45hxxfvgpvawpa6hteckym4

Assessing haptic properties for data representation

Steven A. Wall, Steven A. Brewster
2003 CHI '03 extended abstracts on Human factors in computer systems - CHI '03  
Thus, it is proposed that graphical data could be made more easily accessible to blind users by scaling the data values to friction rather than shape or size, as in traditional bar charts.  ...  Research has shown that the PHANToM is effective at displaying graphical information to blind people, but the techniques used so far have been very simple.  ...  However, visualisations such as these rely on the distributed nature of the visual sense to identify trends in the data through perception and comparison of shape and size.  ... 
doi:10.1145/766028.766034 fatcat:ipp3anydlbchdctgpdgwf6k3me

Visual Experience is not Necessary for the Development of Face Selectivity in the Lateral Fusiform Gyrus [article]

N. Apurva Ratan Murty, Santani Teng, David Beeler, Anna Mynick, Aude Oliva, Nancy G Kanwisher
2020 bioRxiv   pre-print
Similar resting fMRI correlation fingerprints in individual blind and sighted participants suggest a role for long-range connectivity in the specification of the cortical locus of face-selectivity.  ...  Here we show robust face-selectivity in the lateral fusiform gyrus of congenitally blind participants during haptic exploration of 3D-printed stimuli, indicating that neither visual experience, nor fovea-biased  ...  Note that the absolute magnitude of the fMRI signal was lower for the haptic condition in sighted participants relative to the visual condition, but the selectivity of the response was similar in the two  ... 
doi:10.1101/2020.02.25.964890 fatcat:6m7qgis6xnb6tomrn4ka3pov4a

Enhancing general spatial skills of young visually impaired people with a programmable distance discrimination training: a case control study

Fabrizio Leo, Elisabetta Ferrari, Caterina Baccelliere, Juan Zarate, Herbert Shea, Elena Cocchi, Aleksander Waszkielewicz, Luca Brayda
2019 Journal of NeuroEngineering and Rehabilitation  
This is especially true for the blind and visually impaired, for which haptic estimation of distances is paramount but not systematically trained.  ...  The estimation of relative distance is a perceptual task used extensively in everyday life. This important skill suffers from biases that may be more pronounced when estimation is based on haptics.  ...  Acknowledgments The authors would like to thank Delphine Picard for suggestions on the haptic batteries, Henning Kettler for the development of the PadDraw software, Anna Mazur and Agnieszka Nelec for  ... 
doi:10.1186/s12984-019-0580-2 pmid:31462262 pmcid:PMC6714081 fatcat:su52ts62vvf4fh2qunbarnzkti
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