Psychology Commons^™

Manipulations Of Listeners’ Echo Perception Are Reflected In Event-Related Potentials, Lisa Sanders, Benjamin H. Zobel, Richard L. Freyman, Rachel Keen

Lisa Sanders

To gain information from complex auditory scenes, it is necessary to determine which of the many loudness, pitch, and timbre changes originate from a single source. Grouping sound into sources based on spatial information is complicated by reverberant energy bouncing off multiple surfaces and reaching the ears from directions other than the source’s location. The ability to localize sounds despite these echoes has been explored with the precedence effect: Identical sounds presented from two locations with a short stimulus onset asynchrony (e.g., 1–5 ms) are perceived as a single source with a location dominated by the lead sound. Importantly, echo …