Dyslexia, Music

How Noise Effects Dyslexic Children

I’ve picked this up from theEide Neurolearning Blog ,a study on how dyslexics are effected by background noise. Its looks at how long dyslexics take to respond to a either a pure tone or huggins pitch against background noise.

Dyslexics were overall slower than controls by about 120ms. Although we did not run a pure tone detection test in quiet (without background noise), the literature indicates that in simple reactions to pure tones, dyslexics respond as quickly as controls (e.g., Nicholson & Fawcett, 1994). Furthermore, the difference in miss-rates (but not false positive rates or response variability) between the subject groups suggest that the response time differences are not likely to be simply due to a different hearing profile, delayed motor execution or clumsiness, but are related to the processes via which the listeners detect the tonal objects in noise.

Source: Delayed detection of tonal targets in background noise in dyslexia [ PDF ]
See Also: Background Noise, Dysleixa and Earobics