Related Experiment Video
Updated: Sep 6, 2026

A Surgical Procedure for the Administration of Drugs to the Inner Ear in a Non-Human Primate Common Marmoset (Callithrix jacchus)
Published on: February 27, 2018
Deafness in sub-Saharan Africa
Nassozi B Kiyaga1, Donald F Moores
1Gallaudet University, Washington, DC, USA.
Abstract:
Deaf education in sub-Saharan Africa originated in the 19th century, primarily through efforts by hearing European missionaries who typically followed their homelands' oral-only practices. But education became available to only a fraction of the deaf population. In the 20th century, Andrew Foster, a deaf African American missionary and Gallaudet University's first African American graduate, had unparalleled impact on deaf education in the region, establishing 31 schools for the Deaf, training a generation of deaf leaders, and introducing his concept of Total Communication, which embraced both American and indigenous signs. Nigeria, Kenya, Uganda, and South Africa have provided leadership in deaf education, but throughout the region there is growing acceptance of sign language use in school, and secondary and postsecondary education for the Deaf is increasingly available. Some national constitutions safeguard the rights of citizens with disabilities and even recognize indigenous sign languages. International disability organizations, particularly the World Federation of the Deaf, have helped change attitudes and train leaders. Despite some grim present realities, prospects for continued progress are good.
More Related Videos
11:39Assessment of Audio-Tactile Sensory Substitution Training in Participants with Profound Deafness Using the Event-Related Potential Technique
Published on: September 7, 2022
04:32Sound Source Localization Testing in Single-sided Deafness Following Bone Conduction Intervention
Published on: December 20, 2024
Related Concept Videos
Unrenewable Cells
Photoreceptors
The retina is composed of several layers and contains specialized cells called photoreceptors. The photoreceptors (rods and cones) change their membrane potential when stimulated by light energy. There are two types of photoreceptors—rods and cones—which differ in the shape of their outer...
Auditory Pathway
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking the...