Gap detection with three auditory events—a single-channel process

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Abstract
Temporal resolution of a silent interval (gap) imbedded in a three-tonal-pulse train was investigated. Two frequencies were alternated in a three-event array where the gap could appear between the first and second or second and third auditory event. Frequency and gap position effects were systematically explored using a temporal two-interval forced-choice paradigm and a modified tracking procedure. Gap detection was found to vary as a function of antecedent event duration and signal-comparison stimulus similarity. Indications of a filter process similar in bandwidth to the empirical critical band was found in fully correlated signal-comparison stimulus conditions. Obtained results are consistent with fixed-filter signal-envelope detection models found in the simultaneous and forward-masking literature. Subject Classification: [43]65.75, [43]65.68.

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