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Opportunity at U.S. Army Research Laboratory (ARL)

Bone Conduction Perception: Physiology

Location

MD, FL, and AL-Human Research & Engineering Directorate, Human Research and Engineering Directorate

RO# Location
76.27.01.B7211 Aberdeen Proving Ground, MD 210055425

Advisers

Name E-mail Phone
Franaszczuk, Piotr Julian piotr.j.franaszczuk.civ@mail.mil 410.278.8003

Description

Humans can hear sounds through air conduction (the pathway that starts with the external ear) and bone conduction (through vibrations of the skull). While air conduction is the dominant mode of hearing, bone conduction can be very useful in various military and security operations. Radio and audio signals can be converted into skull vibration by vibrators located on the head, and skull vibrations during speech production can be picked up by bone microphones (accelerometers) and transmitted over audio and radio channels. There is some evidence that air- and bone-conducted signals may be differently processed at the cochlear and retrocochlear levels but it is not clear. Similarly it is not clear if there any differences in brain processing of sounds conducted by bone stimulation of audible and utrasound stimuli. This research opportunity may involve analysis of bone conduction pathways in the head, collection of brain recordings during auditory task, implementation of advanced brain signal processing methods, and optimization of air- and bone-conducted signals for speech recognoition and comprehension under various operational conditions.

 

Keywords:
Auditory awareness; Radio communication; Skull vibrations; Hearing protection;

Eligibility

Citizenship:  Open to U.S. citizens, permanent residents and non-U.S. citizens
Level:  Open to Postdoctoral applicants
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