Since there are different types of APD, the prevalence found in children with dyslexia will vary depending on the specific tests used and the auditory processing skills measured. ![]() While other professionals such as psychologists, psychometrists, speech-language pathologists, or occupational therapists may suspect an individual has auditory processing weaknesses from interacting with the child or administering screening instruments, an audiologist is the only professional whose scope of practice is to evaluate the central auditory nervous system and diagnose or rule out an auditory processing disorder. To rule out auditory processing disorder, a child must be evaluated by an audiologist specializing in the assessment of the central auditory nervous system. Dyslexia is typically diagnosed by psychologists, psychometrists, or speech-language pathologists. However, a dyslexia evaluation does not test children for auditory processing disorder. Sometimes receptive (listening) and expressive language skills may be assessed as part of a dyslexia evaluation as well. Asking for repetition of what was heard does not have anything to do with reading or spelling but it is a big red flag that the child is having difficulty processing spoken language.ĭyslexia evaluations typically include intellectual and academic achievement testing. Children with APD also tend to say “what?’ or “huh” frequently even when they seem to be paying attention. This can make it hard to distinguish small sound differences within words, remember what was heard, and keep up with ongoing speech, especially when there is background noise or when more than one person is talking. This causes a breakdown in the brain’s ability to accurately and efficiently process sounds and language. This often shows up in the subtests of the reading and writing assessments.Īuditory Processing Disorder is an abnormality in the processing of sound in the central auditory nervous system. Phonological processing problems in individuals with dyslexia are related to 1) a weakness in phonological awareness (understanding sounds and oral language patterns within words), 2) phonological memory (holding on to speech-based information in short-term memory), and/or 3) rapid automatized naming (quickly identifying and naming a series of common stimuli such as letters, numbers, colors, or objects). This contributes to difficulty understanding the way words are made up of sounds (phonemes) and how these sounds are mapped onto their written counterparts (graphemes). There is considerable research evidence that the core deficit in many children with developmental dyslexia is a phonological processing deficit. Theories have suggested different cognitive subtypes, and there can be multiple causal factors within each dyslexic individual. Research suggests that developmental dyslexia may be too complex to be explained by just one causal factor. Individuals with developmental dyslexia have an abnormality in the word analysis pathways that interfere with their ability to convert written words into spoken words. What is the difference in Auditory Processing Disorder and Dyslexia?ĭyslexia is a language-based learning disability often associated with slow or inaccurate reading, poor spelling, poor writing, or mixing up similar words. Dyslexia and Auditory Processing Disorder share many of the same symptoms, but they are different disorders calling for separate treatment methods. ![]() In addition, 25% of all children tested for learning disabilities were found to have coexisting APD and dyslexia. Research indicates up to 70% of individuals with dyslexia have an underlying auditory processing disorderĪccording to the National Institutes of Health, in children referred for learning difficulties, around 43% have Auditory Processing Disorder (APD). Telepractice Services for Auditory Processing Disorder.Low-Gain Hearing Aids for Auditory Processing Disorder (APD).Deficit Specific Auditory Processing Therapy.ARIA (Auditory Rehabilitation for Interaural Asymmetry).Adults with Auditory Processing Disorder (APD).Differentiating APD from Other Disorders.What Causes Auditory Processing Disorder?. ![]() What are Auditory Processing Disorders?.
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