This article applies to:
Experiment Author: Adapted from STEP and used with permission of Brian MacWhinney
This article is a summary of several studies on auditory illusions. It includes the effect whereby participants cannot identify the order of vowels presented without gap between them, as well as the illusions experienced by participants hearing the same word repeated for several minutes.
This article contains two experiments. In the Vowel Discrimination task, audio of a sequence of vowels play and participants type the corresponding letter into a dialogue box in the exact order of presentation. The length of the audio for the vowels varies by block. The task includes ten practice trials and 10 experiment trials, with feedback at the end of each trial. In the Audio Illusions task, each trial loops the audio of a single word for three minutes and instructs participants to type the word. The task includes four trials and does not include feedback.
NOTE: no .es3 version of this task is included due to compatibility issues with E-Prime 3.0, Windows 8 and 10. For more information, please see INFO: Windows 8 or DirectX 11 or greater detected , INFO: Display.MsgBox usage in E-Prime 3.0 , and BUG: FFmpeg does not support looping .
Warren, R.M., & Warren, R.P. (1970). Auditory illusions and confusions. Scientific American, 223, 30-36.
These failures of perception are studied because they isolate and clarify some fundamental processes that normally lead to accuracy of perception and appropriate interpretation of ambiguous sources.