Subject: Re: Implicit human echolocation From: Peter Lennox <P.Lennox@xxxxxxxx> Date: Wed, 30 May 2007 20:35:53 +0100 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>I think this is quite important. Of course, there are degrees of echolocation, and it might be that the scale of echolocation vaires between blind and sighted, so that, in most contexts, sighted tend to use it less. how you would test that would be interesting... regards ppl Dr. Peter Lennox S.P.A.R.G. Signal Processing Applications Research Group University of Derby http://sparg.derby.ac.uk Int. tel: 3155 >>> "Bruno L. Giordano" <bruno.giordano@xxxxxxxx> 05/30/07 2:31 PM >>> Hello, I have a general knowledge of the literature on human echolocation: sighted-blindfolded listeners are capable of locating nearby surfaces from the reflections of self-generated sounds, when they are instructed to do so. However, does echolocation persist in absence of explicit instructions? An improbable single-trial experiment could address this question: blindfolded participants are asked to walk along a path, as long as they wish. They wouldn't be informed that a wall is obstructing the path. Unfortunately, the number of injuries would measure implicit echolocation abilities. Is anybody aware of related, more ethical studies? Thank you, Bruno ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Bruno L. Giordano, Ph.D. Music Perception and Cognition Laboratory CIRMMT http://www.cirmmt.mcgill.ca/ Schulich School of Music, McGill University 555 Sherbrooke Street West Montréal, QC H3A 1E3 Canada Office: +1 514 398 4535 ext. 00900 http://www.music.mcgill.ca/~bruno/ ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________