BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Perception of pitch by normally hearing and hearing-impaired peopl
 e - Brian Moore\, Department of Experimental Psychology\, University of Ca
 mbridge
DTSTART:20060530T120000Z
DTEND:20060530T130000Z
UID:TALK4875@talks.cam.ac.uk
CONTACT:Cordula Becker
DESCRIPTION:The perception of the pitch of complex tones is critical for f
 ollowing intonation patterns in speech\, for separating the voices of mult
 iple talkers\, and for the enjoyment of music.  Pitch can be extracted bot
 h from low harmonics\, which are resolved in the normal auditory system\, 
 and from high\, unresolved harmonics.  Evidence will be presented that\, f
 or the latter\, normally hearing subjects can extract information from the
  temporal fine structure of the waveform on the basilar membrane\, and not
  just from the envelope\, but this can only be done when harmonics in the 
 range 8 to 14 are present\; for higher harmonics\, only envelope cues are 
 used.  Many people with moderate or severe cochlear hearing loss appear to
  have lost the ability to extract information from the temporal fine struc
 ture of sounds\, possibly because of a mis-match between place and tempora
 l information.  Studies of pitch perception in people with dead regions in
  the cochlea confirm that such a mis-match leads to unclear pitches and a 
 poor ability to detect changes in frequency.
LOCATION:Seminar Room (ground floor)\, Craik-Marshall Building
END:VEVENT
END:VCALENDAR