This study attempts to define more clearly the subgroups of learning disabled children. The vigilance performance, skin conductance level and behavioral ratings of children categorized according to family history of reading problems were evaluated. Behavioral ratings and skin conductance levels show significant differences. The results suggest that distinct subgroups of disabled readers exist, and research based on heterogeneous samples may be misleading.
Get full access to this article
View all access options for this article.
References
1.
Bannatyne, A.: Language, Reading and Learning Disabilities. Springfield, Ill.: Charles C Thomas, 1971.
2.
Boydstun, J.A., Ackerman, P., Clements, S., Peters, I., and Dykman, R.A.: Physiologic and motor conditioning and generalization in children with minimal brain dysfunction. Conditional Reflex, 1968, 3, 81–104.
3.
Cohen, N.J., and Douglas, V.I.: Characteristics of the orienting response in hyperactive and normal children. Psychophysiology, 1971, 9, 238–245.
4.
Denckla, M.: Clinical syndromes in learning disabilities - The case for splitting and lumping. J. Learning Disabil., 1972, 5(7), 401–406.
5.
Duffy, E.: Activation and Behavior, New York: Wiley, 1962.
6.
Hunter, E., Johnson, L., and Keefe, F.: Electrodermal and cardiovascular responses in nonreaders. J. Learning Disabil., 1972, 5(4), 187–198.
7.
Wender, P.: Minimal Brain Dysfunction in Children. New York: Wiley, 1971.
