Hearing phantom sounds that may resemble voices and music but are too vague to understand such as hearing a radio playing from another room. At other times, MES manifests itself as perfectly clear, yet phantom, music or singing, often repeated endlessly. For a more in-depth understanding of Musical Ear Syndrome, read this article.

A small incision made in the eardrum by a physician to equalize air pressure and/or to drain infection or fluid from the middle ear.

The setting where the child typically spends most of his time. For example, a child at age 24 months would likely spend time at home or in a childcare setting. These settings are the child’s “natural environment.”

Language acquired primarily though the accessible sensory channels.

A loop of wire worn like a necklace that creates a magnetic field that can transmit sound when plugged into a portable radio or personal ALD such as an FM or Infrared receiver or other personal listening device.

Damage to the hair cells (nerve endings of the auditory nerve) in the inner ear.