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Informational Masking - Effects of Uncertainty and Temporal Order in Psychoacoustics

Dr. Virginia Richards

Monday, November 06, 2006, 01:00pm - 02:00pm

University of Pennsylvania, Department of Psychology

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Listeners� ability to detect a fixed-frequency tone added to randomly drawn multitone maskers is poor even when the maskers have little energy in the frequency region of the signal.  One potential explanation of such �informational masking� is that observers fail to attend exclusively to the frequency channel conveying information regarding the presence of the signal.  The results from several informational masking studies will be reviewed; with an emphasis on the usefulness of linear models in capturing individual differences in sensitivity. Additionally, experiments evaluating the potency of previews and post-views of the uncertain masker will be considered.

Dr. Virginia Richards