Forward-masked monaural and interaural intensity discrimination (L)

Mark A. Stellmack, Neal F. Viemeister, Andrew J. Byrne

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Intensity-discrimination thresholds were measured for a 25-ms, 6-kHz pure tone for pedestal levels from 40 to 90 dB sound pressure level (SPL) with and without a forward masker (100-ms narrowband Gaussian noise, N0=70 dB). When the masker was present, the masker and probe were separated by 100 ms of silence. Unmasked and masked thresholds were measured in a two-interval monaural procedure and, separately, in a single-interval interaural procedure in which the pedestal and incremented pedestals were presented simultaneously to opposite ears. While the monaural thresholds were elevated markedly by the forward masker for mid-level pedestals, interaural thresholds were nearly unaffected by the masker across pedestal levels. The results argue against the notion that the monaural elevation in forward-masked thresholds is due to degraded encoding of intensity information at early stages of auditory processing.

Original languageEnglish (US)
Pages (from-to)1328-1331
Number of pages4
JournalJournal of the Acoustical Society of America
Issue number3
StatePublished - 2007

Bibliographical note

Funding Information:
This work was supported by Research Grant No. R01 DC0 0683 from the National Institute on Deafness and Communication Disorders, National Institute of Health.


Dive into the research topics of 'Forward-masked monaural and interaural intensity discrimination (L)'. Together they form a unique fingerprint.

Cite this