Pointing movements are affected by size-contrast illusions

1999 ◽  
Vol 125 (4) ◽  
pp. 517-520 ◽  
Author(s):  
Paul van Donkelaar
Keyword(s):  
Contrast Illusions ◽  
Pointing Movements ◽  
Size Contrast

Lightness Effects in Delboeuf and Ebbinghaus Size-Contrast Illusions

Perception ◽  
10.1068/p6622 ◽  
2011 ◽  
Vol 40 (4) ◽  
pp. 464-473 ◽  
Author(s):  
Olga Daneyko ◽  
Daniele Zavagno ◽  
Lucia Zanuttini
Keyword(s):  
Contrast Illusions ◽  
Size Contrast

scholarly journals Afterimage size is modulated by size-contrast illusions

2012 ◽  
Vol 12 (2) ◽  
pp. 18-18 ◽  
Author(s):  
I. Sperandio ◽  
A. Lak ◽  
M. A. Goodale
Keyword(s):  
Contrast Illusions ◽  
Size Contrast

scholarly journals Size-contrast illusions deceive the eye but not the hand

1995 ◽  
Vol 5 (6) ◽  
pp. 679-685 ◽  
Author(s):  
Salvatore Aglioti ◽  
Joseph F.X. DeSouza ◽  
Melvyn A. Goodale
Keyword(s):  
Contrast Illusions ◽  
Size Contrast

An attempt to unify the size-assimilation and size-contrast illusions

1966 ◽  
Vol 29 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Shiro Morinaga ◽  
Kaoru Noguchi
Keyword(s):  
Contrast Illusions ◽  
Size Contrast

Food deprivation reduces the susceptibility to size-contrast illusions

Appetite ◽  
2018 ◽  
Vol 128 ◽  
pp. 138-144 ◽  
Author(s):  
Noa Zitron-Emanuel ◽  
Tzvi Ganel
Keyword(s):  
Food Deprivation ◽  
Contrast Illusions ◽  
Size Contrast

Task and effector constraints on the kinematics of pointing movements

2005 ◽  
Author(s):  
Michael Bohan ◽  
Daniel McConnell ◽  
Shelby Thompson ◽  
Alex Chaparro
Keyword(s):  
Pointing Movements

Evaluation and Comparison of Artificial Intelligence Vision Aids: Orcam MyEye 1 and Seeing AI

2021 ◽  
pp. 0145482X2110274
Author(s):  
Christina Granquist ◽  
Susan Y. Sun ◽  
Sandra R. Montezuma ◽  
Tu M. Tran ◽  
Rachel Gage ◽  
...  
Keyword(s):  
Artificial Intelligence ◽  
Human Performance ◽  
Visual Impairments ◽  
Light Level ◽  
Viewing Distance ◽  
Light Perception ◽  
Time To Completion ◽  
Significant Difference ◽  
Text Reading ◽  
Size Contrast

Introduction: We compared the print-to-speech properties and human performance characteristics of two artificial intelligence vision aids, Orcam MyEye 1 (a portable device) and Seeing AI (an iPhone and iPad application). Methods: There were seven participants with visual impairments who had no experience with the two reading aids. Four participants had no light perception. Two individuals with measurable acuity and one with light perception were tested while blindfolded. We also tested performance with text of varying appearance in varying viewing conditions. To evaluate human performance, we asked the participants to use the devices to attempt 12 reading tasks similar to activities of daily living. We assessed the ranges of text attributes for which reading was possible, such as print size, contrast, and light level. We also assessed if individuals could complete tasks with the devices and measured accuracy and completion time. Participants also completed a survey concerning the two aids. Results: Both aids achieved greater than 95% accuracy in text recognition for flat, plain word documents and ranged from 13 to 57% accuracy for formatted text on curved surfaces. Both aids could read print sizes as small as 0.8M (20/40 Snellen equivalent, 40 cm viewing distance). Individuals successfully completed 71% and 55% ( p = .114) of tasks while using Orcam MyEye 1 and Seeing AI, respectively. There was no significant difference in time to completion of tasks ( p = .775). Individuals believed both aids would be helpful for daily activities. Discussion: Orcam MyEye 1 and Seeing AI had similar text-reading capability and usability. Both aids were useful to users with severe visual impairments in performing reading tasks. Implications for Practitioners: Selection of a reading device or aid should be based on individual preferences and prior familiarity with the platform, since we found no clear superiority of one solution over the other.

scholarly journals Kinematics of prehension and pointing movements in C6 quadriplegic patients

Spinal Cord ◽  
2000 ◽  
Vol 38 (6) ◽  
pp. 354-362 ◽  
Author(s):  
I Laffont ◽  
E Briand ◽  
O Dizien ◽  
M Combeaud ◽  
B Bussel ◽  
...  
Keyword(s):  
Pointing Movements
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