YES
The National Institute on Deafness and Other Communication Disorders (NIDCD) is in Bethesda, Maryland
It is a disorder causing deafness due to the overgrowth of bone in the inner ear.
Nerve conduction deafness is one of the two types of deafness that can happen. It occurs when there is a break in communication between the nerve cells and the inner ear.
speech disorder...he had a lisp
YES
Selective Deafness - "I do not want to hear that kind of talk in this Organization."
It has not been determined that "word blindness" is a genetic disorder. This colloquial term sometimes refers to dyslexia, a developmental communication disorder or alexia, an acquired communication disorder.
Deafness is not a condition that was "discovered" by a single individual, as it has existed throughout human history. However, various cultures have documented and studied deafness over time, with notable contributions from figures like Aristotle, who wrote about hearing and the implications of deafness in ancient texts. In the modern era, advancements in understanding deafness have come from numerous scientists, audiologists, and educators who have contributed to the study of hearing and communication.
you ...can't answer my question...
An organically based communication disorder is a disorder that is caused by physical or neurological factors, rather than psychological or emotional ones. This means that the communication difficulties arise from problems in the structure or functioning of the brain or other organs involved in communication, such as the vocal cords or hearing organs.
Waardenburg synrome is an autosomal genetic disorder characterized by deafness, confluent brows, early grey hair as young as 12, different colored eyes or unusually brilliant blue eyes. Source US NIH Deafness and other communcation disorders. Its named Waardenburg because it was discovered Prietrus Waardenburg who noticed girls and boys with unmatching eyes tend to deafness. There are four main types.
Post- Vocational Deafness: