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Full-Text Articles in Social and Behavioral Sciences
The Influence Of Viewpoint And Object Detail In Blind People When Matching Pictures To Complex Objects, Morton A. Heller, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Mcclure Walk, Stephanie Guthrie, Crystal Kranz, Patricia Klaus
The Influence Of Viewpoint And Object Detail In Blind People When Matching Pictures To Complex Objects, Morton A. Heller, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Mcclure Walk, Stephanie Guthrie, Crystal Kranz, Patricia Klaus
Faculty Research and Creative Activity
We examined haptic viewpoint effects in blindfolded-sighted (BS) and visually impaired subjects: early blind (EB), late blind (LB), and very low vision (VLV). Participants felt complex objects and matched tangible pictures to them. In experiment 1, the EB and BS subjects had similar overall performance. Experiment 2 showed that the presence of a detail on the target object lowered performance in the BS subjects, and that matching accuracy was lower overall for top views for the blind subjects. In experiments 3 ^ 5, EB, LB, VLV, and BS subjects made judgments about perspective pictures of a model house with more …
The Influence Of Viewpoint And Object Detail In Blind People When Matching Pictures To Complex Objects, Morton Heller, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Walk, Stephanie Guthrie, Crystal Kranz, Patricia Klaus
The Influence Of Viewpoint And Object Detail In Blind People When Matching Pictures To Complex Objects, Morton Heller, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Walk, Stephanie Guthrie, Crystal Kranz, Patricia Klaus
Faculty Research and Creative Activity
We examined haptic viewpoint effects in blindfolded-sighted (BS) and visually impaired subjects: early blind (EB), late blind (LB), and very low vision (VLV). Participants felt complex objects and matched tangible pictures to them. In experiment 1, the EB and BS subjects had similar overall performance. Experiment 2 showed that the presence of a detail on the target object lowered performance in the BS subjects, and that matching accuracy was lower overall for top views for the blind subjects. In experiments 3 ^ 5, EB, LB, VLV, and BS subjects made judgments about perspective pictures of a model house with more …
The Effects Of Curvature On Haptic Judgments Of Extent In Sighted And Blind People, Morton Heller, Astrid Kappers, Melissa Mccarthy, Ashley Clark, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Walk, Andreana Basso, Crystal Wanek, Kristen Russler
The Effects Of Curvature On Haptic Judgments Of Extent In Sighted And Blind People, Morton Heller, Astrid Kappers, Melissa Mccarthy, Ashley Clark, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Walk, Andreana Basso, Crystal Wanek, Kristen Russler
Faculty Research and Creative Activity
A series of experiments was carried out to examine the effect of curvature on haptic judgments of extent in sighted and blind individuals. Experiment 1 showed that diameters con- necting the endpoints of semicircular lines were underestimated with respect to straight lines, but failed to show an effect of visual experience on length judgments. In experiment 2 we tested arc lengths. The effects of curvature on perceived path length were weaker, but were still present in this experiment.Visual experience had no effect on path length judgments. Another experiment was performed to examine the effect of repeated tracing (1, 5, 9, …
The Effects Of Curvature On Haptic Judgments Of Extent In Sighted And Blind People, Morton A. Heller, Astrid M.L. Kappers, Melissa Mccarthy, Ashley Clark, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Mcclure Walk, Andreana Basso, Crystal Wanek, Kristen Russler
The Effects Of Curvature On Haptic Judgments Of Extent In Sighted And Blind People, Morton A. Heller, Astrid M.L. Kappers, Melissa Mccarthy, Ashley Clark, Tara Riddle, Erin Fulkerson, Lindsay Wemple, Anne Mcclure Walk, Andreana Basso, Crystal Wanek, Kristen Russler
Faculty Research and Creative Activity
A series of experiments was carried out to examine the effect of curvature on haptic judgments of extent in sighted and blind individuals. Experiment 1 showed that diameters con- necting the endpoints of semicircular lines were underestimated with respect to straight lines, but failed to show an effect of visual experience on length judgments. In experiment 2 we tested arc lengths. The effects of curvature on perceived path length were weaker, but were still present in this experiment.Visual experience had no effect on path length judgments. Another experiment was performed to examine the effect of repeated tracing (1, 5, 9, …
The Influence Of Exploration Mode, Orientation, And Configuration On The Haptic Mu« Ller-Lyer Illusion, Morton A. Heller, Melissa Mccarthy, Jennifer Schultz, Jayme Green, Melissa Shanley, Ashley Clark, Samantha Skoczlyas, Jamie Prociuk
The Influence Of Exploration Mode, Orientation, And Configuration On The Haptic Mu« Ller-Lyer Illusion, Morton A. Heller, Melissa Mccarthy, Jennifer Schultz, Jayme Green, Melissa Shanley, Ashley Clark, Samantha Skoczlyas, Jamie Prociuk
Faculty Research and Creative Activity
We studied the impact of manner of exploration, orientation, spatial position, and configuration on the haptic Mu« ller-Lyer illusion. Blindfolded sighted subjects felt raised-line Mu« ller-Lyer and control stimuli. The stimuli were felt by tracing with the index finger, free exploration, grasping with the index finger and thumb, or by measuring with the use of any two or more fingers. For haptic judgments of extent a sliding tangible ruler was used. The illusion was present in all exploration conditions, with overestimation of the wings-out compared to wings-in stimuli. Tracing with the index finger reduced the magnitude of the illusion. However, …
The Influence Of Exploration Mode, Orientation, And Configuration On The Haptic Mu« Ller-Lyer Illusion, Morton Heller, Melissa Mccarthy, Jennifer Schultz, Jayme Green, Melissa Shanley, Ashley Clark, Samantha Skoczlyas, Jamie Prociuk
The Influence Of Exploration Mode, Orientation, And Configuration On The Haptic Mu« Ller-Lyer Illusion, Morton Heller, Melissa Mccarthy, Jennifer Schultz, Jayme Green, Melissa Shanley, Ashley Clark, Samantha Skoczlyas, Jamie Prociuk
Faculty Research and Creative Activity
We studied the impact of manner of exploration, orientation, spatial position, and configuration on the haptic Mu« ller-Lyer illusion. Blindfolded sighted subjects felt raised-line Mu« ller-Lyer and control stimuli. The stimuli were felt by tracing with the index finger, free exploration, grasping with the index finger and thumb, or by measuring with the use of any two or more fingers. For haptic judgments of extent a sliding tangible ruler was used. The illusion was present in all exploration conditions, with overestimation of the wings-out compared to wings-in stimuli. Tracing with the index finger reduced the magnitude of the illusion. However, …
Mind And Body: Psychology And Neuroscience, Morton Heller
Mind And Body: Psychology And Neuroscience, Morton Heller
Faculty Research and Creative Activity
No abstract provided.
Mind And Body: Psychology And Neuroscience, Morton A. Heller
Mind And Body: Psychology And Neuroscience, Morton A. Heller
Faculty Research and Creative Activity
No abstract provided.
The Haptic Muller-Lyer Illusion In Sighted And Blind People, Morton Heller, Deneen Brackett, Kathy Wilson, Keiko Yoneyama, Amanda Boyer, Heather Steffen
The Haptic Muller-Lyer Illusion In Sighted And Blind People, Morton Heller, Deneen Brackett, Kathy Wilson, Keiko Yoneyama, Amanda Boyer, Heather Steffen
Faculty Research and Creative Activity
We examined the effect of visual experience on the haptic Mu« ller-Lyer illusion. Subjects made size estimates of raised lines by using a sliding haptic ruler. Independent groups of blind- folded-sighted, late-blind, congenitally blind, and low-vision subjects judged the sizes of wings-in and wings-out stimuli, plain lines, and lines with short vertical ends. An illusion was found, since the wings-in stimuli were judged as shorter than the wings-out patterns and all of the other stimuli. Subjects generally underestimated the lengths of lines. In a second experiment we found a nonsignificant difference between length judgments of raised lines as opposed to …
The Haptic Muller-Lyer Illusion In Sighted And Blind People, Morton A. Heller, Deneen D. Brackett, Kathy Wilson, Keiko Yoneyama, Amanda Boyer, Heather Steffen
The Haptic Muller-Lyer Illusion In Sighted And Blind People, Morton A. Heller, Deneen D. Brackett, Kathy Wilson, Keiko Yoneyama, Amanda Boyer, Heather Steffen
Faculty Research and Creative Activity
We examined the effect of visual experience on the haptic Mu« ller-Lyer illusion. Subjects made size estimates of raised lines by using a sliding haptic ruler. Independent groups of blind- folded-sighted, late-blind, congenitally blind, and low-vision subjects judged the sizes of wings-in and wings-out stimuli, plain lines, and lines with short vertical ends. An illusion was found, since the wings-in stimuli were judged as shorter than the wings-out patterns and all of the other stimuli. Subjects generally underestimated the lengths of lines. In a second experiment we found a nonsignificant difference between length judgments of raised lines as opposed to …
Tangible Pictures: Viewpoint Effects And Linear Perspective In Visually Impaired People, Morton A. Heller, Deneen D. Brackett, Eric Scroggs, Heather Steffen, Kim Heatherly, Shana Salik
Tangible Pictures: Viewpoint Effects And Linear Perspective In Visually Impaired People, Morton A. Heller, Deneen D. Brackett, Eric Scroggs, Heather Steffen, Kim Heatherly, Shana Salik
Faculty Research and Creative Activity
Perception of raised-line pictures in blindfolded-sighted, congenitally blind, late-blind, and low-vision subjects was studied in a series of experiments. The major aim of the study was to examine the value of perspective drawings for haptic pictures and visually impaired individuals. In experiment 1, subjects felt two wooden boards joined at 458, 908, or 1358, and were instructed to pick the correct perspective drawing from among four choices. The first experiment on perspective found a significant effect of visual status, with much higher performance by the low-vision subjects. Mean performance for the congenitally blind subjects was not significantly different from that …
Tangible Pictures: Viewpoint Effects And Linear Perspective In Visually Impaired People, Morton Heller, Deneen Brackett, Eric Scroggs, Heather Steffen, Kim Heatherly, Shana Salik
Tangible Pictures: Viewpoint Effects And Linear Perspective In Visually Impaired People, Morton Heller, Deneen Brackett, Eric Scroggs, Heather Steffen, Kim Heatherly, Shana Salik
Faculty Research and Creative Activity
Perception of raised-line pictures in blindfolded-sighted, congenitally blind, late-blind, and low-vision subjects was studied in a series of experiments. The major aim of the study was to examine the value of perspective drawings for haptic pictures and visually impaired individuals. In experiment 1, subjects felt two wooden boards joined at 458, 908, or 1358, and were instructed to pick the correct perspective drawing from among four choices. The first experiment on perspective found a significant effect of visual status, with much higher performance by the low-vision subjects. Mean performance for the congenitally blind subjects was not significantly different from that …
Haptic Perception Of The Horizontal By Blind And Low-Vision Individuals, Morton Heller, Deneen Brackett, Eric Scroggs, Angela Allen, Shavonda Green
Haptic Perception Of The Horizontal By Blind And Low-Vision Individuals, Morton Heller, Deneen Brackett, Eric Scroggs, Angela Allen, Shavonda Green
Faculty Research and Creative Activity
We examined haptic perception of the horizontal in visually impaired people. Blind people (late blind and congenitally blind), persons with very low vision, and blindfolded sighted individ- uals felt raised-line drawings of jars at four angles. They had to demonstrate their understanding that water remains horizontal, despite jar tilt, by selecting the correct raised-line drawing given four choices. Low-vision subjects, with near perfect scores, performed significantly better than the other groups of subjects. While the late-blind and blindfolded sighted subjects performed slightly better than the congenitally blind participants, the difference between the late-blind and congenitally blind groups was nonsignificant. The …
Haptic Perception Of The Horizontal By Blind And Low-Vision Individuals, Morton A. Heller, Deneen D. Brackett, Eric Scroggs, Angela C. Allen, Shavonda Green
Haptic Perception Of The Horizontal By Blind And Low-Vision Individuals, Morton A. Heller, Deneen D. Brackett, Eric Scroggs, Angela C. Allen, Shavonda Green
Faculty Research and Creative Activity
We examined haptic perception of the horizontal in visually impaired people. Blind people (late blind and congenitally blind), persons with very low vision, and blindfolded sighted individ- uals felt raised-line drawings of jars at four angles. They had to demonstrate their understanding that water remains horizontal, despite jar tilt, by selecting the correct raised-line drawing given four choices. Low-vision subjects, with near perfect scores, performed significantly better than the other groups of subjects. While the late-blind and blindfolded sighted subjects performed slightly better than the congenitally blind participants, the difference between the late-blind and congenitally blind groups was nonsignificant. The …
Society, Science, And Values, Morton Heller
Society, Science, And Values, Morton Heller
Faculty Research and Creative Activity
No abstract provided.
Society, Science, And Values, Morton A. Heller
Society, Science, And Values, Morton A. Heller
Faculty Research and Creative Activity
No abstract provided.
Perception Of The Horizontal And Vertical In Tangible Displays: Minimal Gender Differences, Morton A. Heller, Jeffrey A. Calcaterra, Shavonda L. Green, Stevette L. Barnette
Perception Of The Horizontal And Vertical In Tangible Displays: Minimal Gender Differences, Morton A. Heller, Jeffrey A. Calcaterra, Shavonda L. Green, Stevette L. Barnette
Faculty Research and Creative Activity
A study is reported of gender differences in a haptic version of three Piagetian tests that assess understanding of Euclidian space. A raised-line drawing kit was used both for subject responses and for production of stimuli. To test understanding of the horizontal, subjects felt pictures of a jar at four tilts and were asked to draw the water line. Two methods were used to examine understanding of the vertical. First, subjects drew a hanging electrical cord and light bulb, attached to the ceiling of a bus, parked on hills of four different angles. Subsequently, subjects drew telephone poles (represented by …
Are Adaptations Necessarily Genetic?, Steven Scher
Are Adaptations Necessarily Genetic?, Steven Scher
Faculty Research and Creative Activity
No abstract provided.
Are Adaptations Necessarily Genetic?, Steven J. Scher
Are Adaptations Necessarily Genetic?, Steven J. Scher
Faculty Research and Creative Activity
No abstract provided.
Perception Of The Horizontal And Vertical In Tangible Displays: Minimal Gender Differences, Morton Heller, Jeffrey Calcaterra, Shavonda Green, Stevette Barnette
Perception Of The Horizontal And Vertical In Tangible Displays: Minimal Gender Differences, Morton Heller, Jeffrey Calcaterra, Shavonda Green, Stevette Barnette
Faculty Research and Creative Activity
A study is reported of gender differences in a haptic version of three Piagetian tests that assess understanding of Euclidian space. A raised-line drawing kit was used both for subject responses and for production of stimuli. To test understanding of the horizontal, subjects felt pictures of a jar at four tilts and were asked to draw the water line. Two methods were used to examine understanding of the vertical. First, subjects drew a hanging electrical cord and light bulb, attached to the ceiling of a bus, parked on hills of four different angles. Subsequently, subjects drew telephone poles (represented by …