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American Journal of Mental Deficiency|March 1, 1980
Haptic-visual shape matching by mentally retarded children: exploratory activity and complexity effectsP W Davidson, R Pine, M Wiles-Kettenmann, et al.
Research in Developmental Disabilities|January 1, 1992
Haptic scanning of braille cells by low- and high-proficiency blind readersP W Davidson, S Appelle, R N Haber
American Journal of Mental Deficiency|November 1, 1981
Haptic equivalence matching of curvature by nonretarded and mentally retarded blind and sighted personsP W Davidson, S Appelle, F Pezzmenti
American Journal of Optometry and Physiological Optics|April 1, 1975
The effect of stimulus duration and monocular viewing on the "oblique effect" in peripheral visionS Appelle
Applied Research in Mental Retardation|January 1, 1985
Functions of haptic perceptual activity in persons with visual and developmental disabilitiesP W Davidson
Perception & Psychophysics|August 1, 1993
Visual angle as a determinant of perceived interobject distanceC A Levin, R N Haber
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