Author: James Charles Bliss
Publisher:
ISBN:
Category : Perception
Languages : en
Pages : 204
Book Description
Results of five studies on tactual perception, involving airjet stimulators and a computer-controlled facility, are given. In the first study, alphabetic shapes were presented on an 8x6 airjet array that was translated in a small circle. The increased performance with movement suggests a hypothetical model that qualitatively accounts for the display motion effects. The second study involved pairs of alphabetic shapes presented in rapid succession at the same anatomical location. The interaction effects were: increased letter reversals for short interstimulus intervals; more first-response errors for short-stimulus onset intervals and more second-response errors for long-stimulus intervals; a crossover in first- and second-response error rates of 100 to 200 msec after onset of the first stimulus. In the third study, point airjet stimuli were applied simultaneously to the 24 interjoint regions of the fingers. The results suggest a tactile short-term memory with greater capacity than immediate-memory span but with 0.8-sec decay rate. In the fourth study, visual and tactile stimuli giving equal mean simple reaction times were used. With increased response alternatives, mean visual times increased less than mean tactile times; but with simultaneous presentation of both stimulus types, mean reaction time was much shorter than with either type alone.
Tactual Perception: Experiments and Models
Author: James Charles Bliss
Publisher:
ISBN:
Category : Perception
Languages : en
Pages : 204
Book Description
Results of five studies on tactual perception, involving airjet stimulators and a computer-controlled facility, are given. In the first study, alphabetic shapes were presented on an 8x6 airjet array that was translated in a small circle. The increased performance with movement suggests a hypothetical model that qualitatively accounts for the display motion effects. The second study involved pairs of alphabetic shapes presented in rapid succession at the same anatomical location. The interaction effects were: increased letter reversals for short interstimulus intervals; more first-response errors for short-stimulus onset intervals and more second-response errors for long-stimulus intervals; a crossover in first- and second-response error rates of 100 to 200 msec after onset of the first stimulus. In the third study, point airjet stimuli were applied simultaneously to the 24 interjoint regions of the fingers. The results suggest a tactile short-term memory with greater capacity than immediate-memory span but with 0.8-sec decay rate. In the fourth study, visual and tactile stimuli giving equal mean simple reaction times were used. With increased response alternatives, mean visual times increased less than mean tactile times; but with simultaneous presentation of both stimulus types, mean reaction time was much shorter than with either type alone.
Publisher:
ISBN:
Category : Perception
Languages : en
Pages : 204
Book Description
Results of five studies on tactual perception, involving airjet stimulators and a computer-controlled facility, are given. In the first study, alphabetic shapes were presented on an 8x6 airjet array that was translated in a small circle. The increased performance with movement suggests a hypothetical model that qualitatively accounts for the display motion effects. The second study involved pairs of alphabetic shapes presented in rapid succession at the same anatomical location. The interaction effects were: increased letter reversals for short interstimulus intervals; more first-response errors for short-stimulus onset intervals and more second-response errors for long-stimulus intervals; a crossover in first- and second-response error rates of 100 to 200 msec after onset of the first stimulus. In the third study, point airjet stimuli were applied simultaneously to the 24 interjoint regions of the fingers. The results suggest a tactile short-term memory with greater capacity than immediate-memory span but with 0.8-sec decay rate. In the fourth study, visual and tactile stimuli giving equal mean simple reaction times were used. With increased response alternatives, mean visual times increased less than mean tactile times; but with simultaneous presentation of both stimulus types, mean reaction time was much shorter than with either type alone.
Tactile Perception: a Neurological Model and Some Experiments
Author: Arthur Francis Lange
Publisher:
ISBN:
Category : Nervous system
Languages : en
Pages : 136
Book Description
Publisher:
ISBN:
Category : Nervous system
Languages : en
Pages : 136
Book Description
Experiments in Tactual Perception
Author: James Charles Bliss
Publisher:
ISBN:
Category : Perception
Languages : en
Pages : 228
Book Description
This report describes basic studies on tactile perception and communication. In Section II are described experimental sessions in which words, sentences, and paragraphs were transmitted to subjects by a tactile display. Sessions in which a specially designed tactile alphabet was developed are discussed in Section III. Factors such as learnability, edge effects, letter packing, and number of fingers used are considered. Tactually naive subjects were able to identify these letters correctly at a rate of two random letters a second after 25 hours of practice. In Section IV, studies of two-dimensional compensatory tracking with a continuous visual display, a discrete visual display, and a discrete tactile display are described. Finally, in Section VI three series of quantitative studies are reported. The first is a study of the effect of deliberate stimulus pattern 'jitter' on performance. Next, a study concerned with methods of tactually transmitting the magnitude of a single analog parameter is described. Third, the theory of signal detection is applied to a study of the human observer's ability to discriminate among different loci of tactual stimulation.
Publisher:
ISBN:
Category : Perception
Languages : en
Pages : 228
Book Description
This report describes basic studies on tactile perception and communication. In Section II are described experimental sessions in which words, sentences, and paragraphs were transmitted to subjects by a tactile display. Sessions in which a specially designed tactile alphabet was developed are discussed in Section III. Factors such as learnability, edge effects, letter packing, and number of fingers used are considered. Tactually naive subjects were able to identify these letters correctly at a rate of two random letters a second after 25 hours of practice. In Section IV, studies of two-dimensional compensatory tracking with a continuous visual display, a discrete visual display, and a discrete tactile display are described. Finally, in Section VI three series of quantitative studies are reported. The first is a study of the effect of deliberate stimulus pattern 'jitter' on performance. Next, a study concerned with methods of tactually transmitting the magnitude of a single analog parameter is described. Third, the theory of signal detection is applied to a study of the human observer's ability to discriminate among different loci of tactual stimulation.
Research and Development of Tactile Facsimile Reading Aid for the Blind
Author: John G. Linvill
Publisher:
ISBN:
Category : Blind, Apparatus for the
Languages : en
Pages : 94
Book Description
Publisher:
ISBN:
Category : Blind, Apparatus for the
Languages : en
Pages : 94
Book Description
Tactile Perception of Textiles in a Virtual-Reality System
Author: Dennis Allerkamp
Publisher: Springer Science & Business Media
ISBN: 3642139744
Category : Technology & Engineering
Languages : en
Pages : 127
Book Description
This work forms part of the EU funded HAPTEX project, which is aimed at developing a VR system for the visual and haptic presentation of textiles. Written by experts in the field, the book presents the state-of-the-art of VR based tactile perception.
Publisher: Springer Science & Business Media
ISBN: 3642139744
Category : Technology & Engineering
Languages : en
Pages : 127
Book Description
This work forms part of the EU funded HAPTEX project, which is aimed at developing a VR system for the visual and haptic presentation of textiles. Written by experts in the field, the book presents the state-of-the-art of VR based tactile perception.
Tactile Perception Studies Related to Teleoperator Systems
Author: J. C. Bliss
Publisher:
ISBN:
Category : Feedback control systems
Languages : en
Pages : 92
Book Description
Publisher:
ISBN:
Category : Feedback control systems
Languages : en
Pages : 92
Book Description
Proceedings
Author:
Publisher:
ISBN:
Category : Blind, Apparatus for the
Languages : en
Pages : 254
Book Description
Publisher:
ISBN:
Category : Blind, Apparatus for the
Languages : en
Pages : 254
Book Description
Research Programs to Aid the Handicapped
Author: United States. Congress. House. Committee on Science and Technology
Publisher:
ISBN:
Category : Handicapped
Languages : en
Pages : 434
Book Description
Publisher:
ISBN:
Category : Handicapped
Languages : en
Pages : 434
Book Description
Objects, models and two-dimensional shapes for use in visual and tactile-kinaesthetic shape perception experiments
Author: Gerald Haigh Fisher
Publisher:
ISBN:
Category :
Languages : en
Pages : 49
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 49
Book Description
Tactual Perception
Author: William Schiff
Publisher: Cambridge University Press
ISBN: 9780521240956
Category : Medical
Languages : en
Pages : 484
Book Description
An overview of knowledge about tactual-haptic perception.
Publisher: Cambridge University Press
ISBN: 9780521240956
Category : Medical
Languages : en
Pages : 484
Book Description
An overview of knowledge about tactual-haptic perception.