A statistical model of horizontal auditory localization performance data

Garnett P. McMillan, Gabrielle Saunders, Timothy E. Hanson

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Horizontal localization experiments are used to evaluate the listener's ability to locate the position of a sound source, and determine how signal characteristics affect this ability. These experiments generate circular, bimodal, and repeated data that are challenging to statistically analyze. A two-part mixture of wrapped Cauchys is proposed for these data, with the effects of signal type and position on localization bias, precision, and front-back confusion modeled using regression. The model is illustrated using mid- (1.0-2.0 kHz) and high- (3.0-6.0 kHz) frequency narrow band noises localization collected among ten normal hearing listeners.

Original languageEnglish (US)
Pages (from-to)EL229-EL235
JournalJournal of the Acoustical Society of America
Issue number6
StatePublished - Jun 2011
Externally publishedYes

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics


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