Image courtesy of Boston University Center for Autism Research Excellencespectrum. My research aims to deepen our understanding of the brain-activity patterns associated with sound hypersensitivity and difficulty with language in adolescents and young adults on the autism This participant is looking forward to watching Frozen now that her EEG cap is on. Some estimates based on parent reports suggest that up to 80 percent of children with autism process sounds in atypical ways. We know that autism and auditory processing disorders often overlap, though don’t know precisely how often. Parents often notice these “auditory hypersensitivities” when their children are quite young – even before a child is diagnosed with autism. Feeling distressed when surrounded by a lot of chatter or other noise.Humming in response to chatter or other noises.Covering one’s ears in situations that don't seem particularly noisy to most people.If you have autism – or have a child with autism – you may have experienced or seen indications of this difficulty such as the following: But research increasingly suggests that autism often involves difficulties in distinguishing and processing sound – one of the most basic skills needed to understand and use speech. We don’t know what prevents around a third of people with autism from developing language. And it presents challenges in settings that most people might consider “ordinary.” Auditory processing and autism However, for someone with an auditory processing disorder, the difficulty is already present in early childhood. It’s interesting to note that processing sound in noisy environments appears to become more difficult as people age. That’s when we need to really concentrate on the person who’s talking with us. Most people perform this kind of sound processing automatically, though it gets more challenging in noisy settings. You’re probably using both sound and visual cues to do so – focusing on your friend’s mouth and the pitch of her voice. This involves separating her words from the rest of the sounds. To have that a conversation, you need to understand what your friend is saying. You’re surrounded by noises at different volumes. For a good analogy of what a person with an auditory processing disorder experiences, imagine trying to have a meaningful conversation with someone at a noisy party. Image courtesy the American Speech Language Hearing Association. Central auditory processing involves how the brain processes, or makes sense of, sound detected by the ear.
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