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Published on: January 29, 2014
Auditory temporal processing in children with specific reading disability with and without attention
Joshua I Breier1, Jack M Fletcher, Barbara R Foorman
1Department of Neurosurgery, University of Texas, Houston 77030, USA. Joshua.I.Breier@uth.tmc.edu
Insights
Children with reading disability (RD) show specific auditory temporal deficits, particularly in detecting tone asynchrony. Attention-deficit/hyperactivity disorder (ADHD) presence further impacts performance on auditory tasks.
Area of Science:
- Neuroscience
- Developmental Psychology
- Auditory Perception
Background:
- The auditory temporal deficit hypothesis suggests reading disability (RD) is linked to impaired auditory temporal processing.
- Understanding these auditory processing skills is crucial for diagnosing and supporting children with RD and/or ADHD.
Purpose of the Study:
- To investigate auditory temporal perception deficits in children with RD, with and without ADHD.
- To examine the impact of comorbid ADHD on auditory processing in children with RD.
Main Methods:
- Administered auditory temporal and non-temporal cue perception tasks to four groups: RD/no-ADHD, ADHD/no-RD, RD/ADHD, and normal impairment (NI).
- Compared performance across groups on tasks assessing detection of tone onset asynchrony, temporal, and non-temporal acoustic cues.
Main Results:
- Children with RD demonstrated a specific deficit in detecting tone onset time asynchrony.
- ADHD presence was associated with general performance decrements across auditory tasks.
- No pervasive auditory temporal deficit was found in RD, but a potential backward masking sensitivity was noted.
Conclusions:
- RD is associated with a specific, not pervasive, auditory temporal processing deficit, particularly in asynchrony detection.
- Comorbid ADHD significantly influences the psychoacoustic task performance of children with RD.
- Findings refine the understanding of auditory processing in RD and the role of ADHD.
Abstract:
The auditory temporal deficit hypothesis predicts that children with specific reading disability (RD) will exhibit a deficit in the perception of auditory temporal cues in nonspeech stimuli. Tasks assessing perception of auditory temporal and nontemporal cues were administered to children with (a) RD without attention-deficit/hyperactivity disorder (RD/no-ADHD, n = 40), (b) ADHD alone (ADHD/no-RD, n = 33), (c) RD and ADHD (RD/ADHD, n = 36), and (d) no impairment (NI, n = 41). The presence of RD was associated with a specific deficit in detection of a tone onset time asynchrony, but no reduction in performance on other tasks assessing perception of temporal or nontemporal acoustic cues. The presence of ADHD was associated with a general reduction in performance across tasks. The pattern of results did not indicate a pervasive deficit in auditory temporal function in children with RD, but did suggest a possible sensitivity to backward masking in this group. Results also indicated that the comorbid presence of ADHD is a significant factor in the performance of children with RD on psychoacoustic tasks.
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