Tactile illusion-produced number perception in blind and sighted persons. 1998

G R Gonzales, and S A Lewis, and A L Weaver, and D Paul
Department of Neurology, Mayo Clinic Scottsdale, Arizona, USA.

OBJECTIVE To determine whether tactile receptive communication is possible in both sighted and blind persons through the use of a mechanical device that creates the perception of continuous contact through sequential points of vibration on the skin and whether the ability of these two groups differs. METHODS The cohort consisted of 20 sighted and 20 blind subjects who had no prior exposure to a tactile communication device that produces a tactile illusion. Each subject was presented number sequences created by the tactile illusion in the form of single-digit, three-digit, and four-digit sequences, and the number of trials needed for correct identification was recorded. RESULTS On average, the sighted subjects tended to identify the digit sequences sooner than did the blind subjects by almost one trial; however, this difference was not statistically significant. Younger subjects and female subjects also tended to identify the digit sequences sooner. Nevertheless, the overall correlation between age and number of trials across all replications was relatively minor. CONCLUSIONS Tactile receptive communication is possible through the use of a mechanical device used to create tactile illusions. The tactile illusion of numbers is equally perceived by blind and sighted persons.

UI MeSH Term Description Entries
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001766 Blindness The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of EYE DISEASES; OPTIC NERVE DISEASES; OPTIC CHIASM diseases; or BRAIN DISEASES affecting the VISUAL PATHWAYS or OCCIPITAL LOBE. Amaurosis,Bilateral Blindness,Blindness, Bilateral,Blindness, Legal,Blindness, Monocular,Blindness, Unilateral,Sudden Visual Loss,Unilateral Blindness,Blindness, Acquired,Blindness, Complete,Blindness, Hysterical,Blindness, Transient,Acquired Blindness,Amauroses,Bilateral Blindnesses,Complete Blindness,Hysterical Blindness,Legal Blindness,Monocular Blindness,Sudden Visual Losses,Transient Blindness,Visual Loss, Sudden
D003071 Cognition Intellectual or mental process whereby an organism obtains knowledge. Cognitive Function,Cognitions,Cognitive Functions,Function, Cognitive,Functions, Cognitive
D003142 Communication The exchange or transmission of ideas, attitudes, or beliefs between individuals or groups. Miscommunication,Misinformation,Social Communication,Communication Programs,Communications Personnel,Personal Communication,Communication Program,Communication, Personal,Communication, Social,Communications, Social,Miscommunications,Misinformations,Personnel, Communications,Program, Communication,Programs, Communication,Social Communications
D004867 Equipment Design Methods and patterns of fabricating machines and related hardware. Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000367 Age Factors Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time. Age Reporting,Age Factor,Factor, Age,Factors, Age

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