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Title: An investigation of duplex perception with musical triads.
Author: Bruce, Greg.
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 1999
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Duplex perception (DP) occurs when a stimulus simultaneously contributes to the perception of two auditory events (Rand, 1974), thus violating the principle of exclusive allocation. One interpretation of DP is that it is the consequence of independent auditory modules [speech/music vs. acoustical] of which one `mode' [phonetic/musical] has `perceptual precedence' (Liberman and Mattingly, 1989). The more common scene analysis view is that DP is the consequence of competing cues for organisation (Bregman, 1987,1990). This thesis attempted to explore DP with musical triads. It was found that tonal fusion was affected when triads were presented dichotically. Secondly, these `duplexed' triads evinced a trade-off between mode and note performance, modulated by presentation (monaural vs. dichotic). Thirdly, sequential grouping had no effect on DP. Fourthly, the relative timing of the notes in a chord had little effect on tonal fusion or DP. Finally, there was no evidence for subliminal tonal fusion, which contradicted the notion of perceptual precedence in DP. Although the findings support the idea that DP is the product of competing cues (e. g. spatial location vs. musical schemas), the insensitivity of triads to temporal-sequential organisation highlights important differences between DP with speech and music.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Music Psychology Literature Mass media Performing arts