Previous experimentation has indicated that under the following two conditions one's sensitivity for bone conducted sound is increased: (1) closure of the external auditory meatus; and (2) filling the meatus with water. There has been much discussion as to whether this "increased" sensitivity is apparent or real.
Proceedings of the Iowa Academy of Science
©1937 Iowa Academy of Science, Inc.
Kelley, Noble H.
"The Phenomenon of Increased Bone Conduction,"
Proceedings of the Iowa Academy of Science, 44(1), 161-161.
Available at: https://scholarworks.uni.edu/pias/vol44/iss1/75