Dichotic Interaural Intensity Difference (DIID)

Dichotic Interaural Intensity Difference (DIID)

Children with Auditory Processing Disorder (APD) have difficulty processing sound and speech information correctly. There are a few different categories of APD, making correct diagnosis imperative, so that the right intervention can be implemented to target the specific type of auditory processing problem present.

DIID is a technique introduced by Frank Musiek, Ph. D. (University of Connecticut that specifically addresses auditory integration deficits. Children with auditory integration deficits have trouble processing information using both ears together. The problem is usually a weak connection in the corpus callosum, a brain structure that sends information back and forth between the brain hemispheres. Because of this, a child with auditory integration deficits may get lost in the details of information and miss the “big picture.” These kids are often slower to comprehend spoken and written information. They frequently say things like, “I don’t get it,” meaning they heard what was said but do not know what to do with the information. Auditory integration deficits are most evident by about third or fourth grade, when children must process complex streams of information at the same time.

At Brainchild Institute, we take a combined approach to auditory integration deficits. We workon tasks that involve crossing the body midline, and using balance board activities to move information back and forth between the two hemispheres of the brain. We also work on the DIID listeningactivities in the sound booth. These activities require the child to listen to two competing speech messages at the same time, or to focus on one message while “tuning out” the message heard in the opposite ear.

The end result is improved listening comprehension and ability to understand the “who, what, where when, how and why” of a message due to strengthening of the corpus callosum. This leads to improvements in socialization skills as well as academic performance. DIIDtraining is tailored to match each child’s specific needs. Noticeable changes are usually apparent after six weeks of training.

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