Or it may be due to changes in the central auditory system that impairs hearing and speech.Ī more recent 2018 study also suggested that central APD may precede the onset of AD. The cause may be the aging central nervous system that affects speech. The reviewers noted that central APD might occur 5 to 10 years before AD. People with AD performed poorer in psychoacoustic tests than ordinary people. APD among people with Alzheimer’s Disease: A review of medical journals revealed that central APD was present among people with Alzheimer’s Disease (AD). The study found the most common hearing impairment among people with stroke was the combination.Ĥ. They were then classified into three – peripheral hearing loss, central APD, and a combination of peripheral hearing loss and central APD. All participants underwent various tests in a single session. APD among people who had a stroke: Forty-two people who suffered from stroke and 40 control subjects participated in a study. It is characterized by difficulty recognizing speech in noise despite normal pure-tone thresholds.”ģ. According to the researchers Musiek et al., “Central APD results from deficits in perceptual processing of auditory stimuli in the central nervous system. Cochlear synaptopathy is described as an interruption in communication between inner hair cells and cochlear nerve fibre.īut based on a 2018 study, central APD has been suggested as the origin of HHL. An audiogram is used to diagnose hearing loss by charting the frequencies a person hears.Ī 2017 research reported that HHL is caused by cochlear synaptopathy. Central APD as the most common “ Hidden Hearing Loss“: HHL is a term used when people have difficulty understanding spoken words in noise even under normal audiograms. The researchers concluded that it is less common in the elderly as previously known. For older adults, researchers tested 1,026 participants in a cohort study. However, the prevalence of APD in the greater population is not known. Prevalence rate : APD exists in children as well as in any adult ages. It included abstract thinking, memory, visuospatial ability, and overall condition.īefore you get into any treatments though, let’s familiarize you with APD in adults.ġ0 Facts about Auditory Processing Disorder (APD) in adults:ġ.
The study concluded that the Tomatis® Method improved the participants’ cognitive functions. The researchers then subjected both groups to the Tomatis® audio training with conventional intervention for two weeks. The groups were divided into, one as control and the other as experimental. Researchers conducted a study on 80 cognitively-impaired people who suffered from a stroke. This may be due to Central APD or peripheral hearing loss. It’s common that people who experience a stroke may have auditory impairment. The auditory stimulation method works for children as well as adults. ( In effect, it stimulates the brain into developing cognitive, motor, and emotional skills.
People use specialized headphones that transmit voice and music through bone and air conduction. Alfred Tomatis developed the Tomatis’ auditory stimulation method, a customized program based on the listening test of a person with APD. One of the promising treatments for APD is the Tomatis® Method. It’s essential to get an appropriate treatment for APD as it affects all aspects of your life. You have to undergo tests and assessments for proper diagnosis and recommended treatment. It’s best to consult an audiologist or a multidisciplinary medical team since APD is complex. The more it becomes challenging for you to listen and process sound and words, especially in a noisy environment. As you age, the auditory nervous system becomes less flexible.
If you answered yes to the questions, you might be suspected of auditory processing disorder or APD. Are you often referred to as “dense” because you can’t seem to get the joke?.Do you have trouble understanding fast talkers and people with foreign accents?.Do you show difficulties with a cellphone conversation?.Is it hard for you to focus on what is being said by a colleague in a noisy cafeteria?.Do you find it hard to listen in a meeting and take notes at the same time?.Do you have a hard time following instructions from your supervisor?.Do you feel your reply to a conversation may be off-topic and feel you’re missing out on details?.Can you comprehend anything when you are spoken to in a busy street?.Do you have trouble paying attention to what is being repeatedly said to you?.
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Do you have difficulty understanding the lyrics or sounds even if the music or TV is in full volume?.Let’s find out if you exhibit any of the behaviours associated with APD.
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