Your spell-checker seems to have been under-active as well because it did not catch the wrong verb form of "tells".
Your question about auditory illusions was probably intended to be: "Are there any auditory illusions that haveÂ potential relevance to hearing-aid design?" I'll leave this question to others to answer, as I don't know much about hearing aids.
On 7/30/11 3:16 AM, Nedra Floyd-Pautler, LLC wrote:
-- Bruno H. Repp Senior Research Scientist Music Perception and Action Haskins Laboratories 300 George Street New Haven, CT 06511-6624 E-mail: repp@xxxxxxxxxxxxxxxx Web page: http://www.haskins.yale.edu/staff/repp.html