Title page for ETD etd-07072011-094115

Type of Document Dissertation
Author Toussaint, Karen A.
URN etd-07072011-094115
Title Teaching Tactual Discrimination of Braille Characters to Beginning Braille Readers
Degree Doctor of Philosophy (Ph.D.)
Department Psychology
Advisory Committee
Advisor Name Title
Tiger, Jeffrey Committee Chair
Copeland, Amy Committee Member
Gresham, Frank Committee Member
Kelley, Mary Lou Committee Member
Aghazadeh, Fereydoun Dean's Representative
  • braille
  • errorless learning
  • tactual discrimination
  • visual impairments
  • stimulus fading
Date of Defense 2011-07-06
Availability unrestricted
We taught three children with visual impairments to make tactual discriminations of the braille alphabet within a matching-to-sample format. That is, we presented participants with a braille character as a sample stimulus and they were to select the matching stimulus from an array of three comparisons. In order to minimize participant errors, we arranged braille characters into training sets in which the target and non-target stimuli in the comparison arrays were initially maximally different in terms of the number of dots comprising each character. As participants mastered these discriminations, we then increased the similarity between target and non-target comparisons (i.e., an approximation of stimulus fading). All three participantsí accuracy systematically increased following the introduction of this procedure.
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  toussaintdiss.pdf 124.56 Kb 00:00:34 00:00:17 00:00:15 00:00:07 < 00:00:01

Browse All Available ETDs by ( Author | Department )

If you have questions or technical problems, please Contact LSU-ETD Support.