KidsAudiologist

The importance of early audiological intervention

Posted on: March 22, 2012

I wanted to share a couple of excellent articles by Dr Carol Flexer, Ph.D. on the importance of early hearing aid fitting and use, & associated development of the auditory brain…

“Hart and Risley (1999) studied children from professional families and determined that they have heard 46 million live-spoken words by age 4. This is the magnitude of practice that is critical. This speaks volumes to the fact that less than every waking hour of technology use will not cut it for children with hearing loss. Dehaene (2009) talked about the listening basis for reading, and children with hearing loss require three times the exposure to learn new words and concepts because of reduced acoustic bandwidth compared to typical hearing peers.”

The Auditory Brain: Conversations for Pediatric Audiologists (2011)

“Robbins et al. (2004) found that skills mastered as a course of normal development result in developmental synchrony. Therefore, it appears we are pre-programmed to develop specific skills during certain periods of development. If those skills can be triggered at the intended time, we will be operating under a developmental and not a remedial paradigm. That is, we will be working harmoniously within the design of the human structure.”

Neuroplasticity is greatest during the first 3 ½ years of life; the younger the infant, the greater the neuroplasticity. Rapid infant brain growth requires prompt intervention, typically including amplification and a program to promote auditory skill development. In the absence of sound, the brain re-organizes itself to receive input from other senses, primarily vision; this process is called “crossmodal re-organization” and it reduces auditory neural capacity. Early amplification or implantation stimulates a brain that has not yet been reorganized, allowing the brain to be more receptive to auditory input resulting in greater auditory capacity.”

Auditory Brain Development: The key to developing listening, language and literacy (2012)

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