Visual and auditory coding confusability in students with and without learning disabilities.

Abstract:

:The nature of visual and auditory coding processes in students with learning disabilities (SLDs) and student controls (SCs) was examined with a letter-matching task on four types of successively presented letter pairs: identical (A,A), visually confusable (P,R), auditorily confusable (F,S), and neither visually nor auditorily confusable (N,T). Two delay intervals (0 and 2 seconds) were used between the presentation of the first and second letters. Analysis of decision latencies on the nonidentical letter pair trials revealed that with initial exposure to the task, the SLDs responded more slowly than SCs, but their general confusability patterns (visual and auditory) were similar. With additional practice, overall decision latencies were comparable for the two groups, while confusability differences emerged: SCs showed maximal visual confusability at a 0-second delay and maximal auditory confusability at a 2-second delay, while SLDs did not. Evidently, SLDs make less extensive use of visual and auditory coding processes compared to SCs.

journal_name

J Learn Disabil

authors

Hardy BW,McIntyre CW,Brown AS,North AJ

doi

10.1177/002221948902201011

subject

Has Abstract

pub_date

1989-12-01 00:00:00

pages

646-51

issue

10

eissn

0022-2194

issn

1538-4780

journal_volume

22

pub_type

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