Central Auditory Processing Disorder Essentials

Central Auditory Processing Disorder, or CAPD, is a hearing disorder in which the trouble lies not with the ears, but with the brain. With Central Auditory Processing Disorder, your ears have no problem hearing sounds (especially the sounds associated with speech) properly, but something is affecting the brain’s ability to interpret these sounds. The disorder is thus characterized by a lack of coordination between the ears and the brain.

As many as 2 to 5 percent of school-age children are affected by CAPD including roughly half of all children that have been diagnosed with a learning disability. Children with CAPD often cannot discern the sounds of different words even when the words are spoken loud and clear. This inability to understand words often becomes worse in noisy environments, but is not as present in quiet environments.

CAPD is often difficult to detect, because when children’s hearing is tested in a quiet room, they can clearly hear the pure tones they hear through the testing equipment, and they similarly have no apparent problems hearing and interpreting speech in non-noisy environments. But even though their audiogram results may appear normal, children with CAPD often have difficulty locating where sounds are coming from, difficulty discerning the differences between two similar sounds, difficulty recognizing patterns of repetitive high and low sounds, and difficulty being able to hear more than one person speaking at the same time.

These symptoms may carry over into other areas of life, as the children struggle to cope with not being able to understand people speaking to them. For example, they may become easily distracted by sudden noises, have difficulty following directions, develop reading, spelling, and language difficulties, become disorganized and forgetful, or have trouble following conversations. When given standard hearing tests, these children appear to have normal hearing, so these symptoms are often confused with or mistaken for signs of other problems such as depression or Attention Deficit Hyperactivity Disorder (ADHD). This misdiagnosis is further complicated by the fact that a child may in fact have ADHD or some other learning disorder and also have CAPD.

Properly detecting and diagnosing CAPD as eary in a child’s life as possible is crucial to avoid developmental delays both social and academic. Early diagnosis is key to ensuring that the condition is resolved, which is why it is important, if you have noticed any of the above symptoms in your children, to have their hearing professionally tested.