Subject: Implicit human echolocation From: "Bruno L. Giordano" <bruno.giordano@xxxxxxxx> Date: Wed, 30 May 2007 09:31:46 -0400 List-Archive:<http://lists.mcgill.ca/scripts/wa.exe?LIST=AUDITORY>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/