Interaction and integration of the signals coming from the right and left ears at the brainstem, midbrain and auditory cortex level need to be intact for appropriate processing to occur. The sense of hearing is a binaural system, as it relies on the input from our two ears. To understand a verbal stimulus one needs to be able to identify the sounds, discriminate the differences in tempo, pitch, loudness, sequence, localise and focus on the source of sound at the task and ignore others that are not important. Several analyses take place before a sound can be fully processed. ![]() Interpretation of speech signals requires a set of auditory skills that allow processing to occur. Speech is the most important auditory signal used for communication. Speech is an Auditory Signal to be Processed ![]() To interpret and respond to auditory information, the brain receives signals originated by sounds coming from the external world that first enter the ear canal, vibrating the eardrum, passing the middle ear, the cochlea and the auditory nerve through the brainstem all the way to the auditory cortex. Auditory Processing – the Function of HearingĪuditory Processing refers to the function of hearing, and ultimately the translation of sounds into meaning performed at the central parts of the brain named the auditory cortex. CAPD is not attributable to impairments in peripheral hearing or intellect. The more challenging the acoustic environment the harder it is to follow speech and verbal instructions.ĬAPD medical definition: Central Auditory Processing Disorder: also known as Auditory Processing Disorder is a disorder that is marked by a deficit in the way the brain receives, differentiates, analyses, and interprets auditory information such as speech. ![]() Children with Central Auditory Processing Disorder (CAPD) are easily distracted and cannot focus on an auditory task for very long.
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