J Am Acad Audiol
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The Listening in Spatialized Noise--Sentences test (LISN-S) is a revised version of the Listening in Spatialized Noise (Continuous Discourse) test (LISN; Cameron et al, 2006a). The software produces a three-dimensional auditory environment under headphones and was developed to assess auditory stream segregation skills in children. A simple repetition response protocol is utilized to determine speech reception thresholds (SRTs) for sentences presented from 0 degree azimuth in competing speech. The competing speech is manipulated with respect to its location in auditory space (0 degree vs. + and -90 degrees azimuth) and the vocal quality of the speaker(s) (same as, or different to, the speaker of the target stimulus). Performance is measured as two SRT and three advantage measures. The advantage measures represent the benefit in dB gained when either talker, spatial, or both talker and spatial cues combined are incorporated in the maskers. ⋯ The study supports the hypothesis that a high proportion of children with suspected (C)APD have a deficit in the mechanisms that normally use the spatial distribution of sources to suppress unwanted signals. The LISN-S is a potentially valuable assessment tool for assessing auditory stream segregation deficits, and is sensitive in differentiating various forms of auditory streaming.