Are We Yet Able to Hear the Signal Through the Noise? A Comprehensive Review of Central Auditory Processing Disorders: Issues of Research and Practice

Abstract

A Central Auditory Processing Disorder (CAPD) exists when a child has apparent difficulty in processing auditory information while possessing normal hearing. CAPD has been implicated by some as the root disorder underlying learning disabilities, Attention Deficit/Hyperactivity Disorder, and Specific Language Impairment. Despite years of research there is little consensus on a definition, criteria for assessment and diagnosis, and the efficacy of remediation and management. This comprehensive review of the CAPD literature examines the prevalence and etiology, assessment methods, differential diagnosis, as wVell as methods of management and remediation. Particular attention is paid to the details of research design and psychometrics. Support for the distinct existence of CAPD would be aided by the development of a modality-specific operational definition, assessment tools that were better standardized and normed, and the use of better control conditions in research.