Deficits in melodic contour visualization in individuals with congenital amusia

Xuejing Lu, Yanan Sun, William Forde Thompson

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

Abstract

People with congenital amusia have difficulty with melodic contour processing, even when the pitch changes involved exceed their threshold for pitch discrimination. Patel et al. (2005) proposed the “Melodic Contour Deafness Hypothesis”, which posits that congenital amusia results from insensitivity to the direction of pitch movement rather than impaired processing of pitch change detection. Given that melodic processing requires both accurate perception of pitch change direction as well as the capacity to represent a succession of contour changes, it is unclear whether impairments in melodic contour processing observed in individuals with congenital amusia occur at a perceptual stage or at a stage of representing a contour pattern in memory. To disentangle these two stages, the present study examined cross-modal mapping using an audio-visual mismatch detection task. Twelve participants with congenital amusia and 12 matched controls were presented with tone sequences (tonal and atonal) and visual contours that corresponded to the melodic contour of the tones (i.e., sequences of dots that vary in spatial height corresponding to pitch changes). Participants were asked to respond as quickly as possible when they detected an audio-visual mismatch. Compared with control participants, amusic individuals made more errors in both tonal and atonal sequences. The finding suggests that individuals with congenital amusia are impaired in perceiving the up-down pattern of a melody. Furthermore, all participants showed a better performance on tonal sequences than atonal ones. In other words, tonal structure facilitated melodic contour processing.
LanguageEnglish
Title of host publicationProceedings of the Ninth Triennial Conference of the European Society for the Cognitive Sciences of Music
EditorsJane Ginsborg, Alexandra Lamont, Michelle Phillips, Stephanie Bramley
Place of PublicationManchester, UK
PublisherRoyal Northern College of Music
Pages559-562
Number of pages4
Publication statusPublished - 2015
EventTriennial Conference of the European Society for the Cognitive Sciences of Music (9th : 2015) - Manchester, UK
Duration: 17 Aug 201522 Aug 2015

Conference

ConferenceTriennial Conference of the European Society for the Cognitive Sciences of Music (9th : 2015)
CityManchester, UK
Period17/08/1522/08/15

Fingerprint

Pitch Discrimination
Pitch Perception
Deafness
Tune Deafness
Direction compound

Cite this

Lu, X., Sun, Y., & Thompson, W. F. (2015). Deficits in melodic contour visualization in individuals with congenital amusia. In J. Ginsborg, A. Lamont, M. Phillips, & S. Bramley (Eds.), Proceedings of the Ninth Triennial Conference of the European Society for the Cognitive Sciences of Music (pp. 559-562). Manchester, UK: Royal Northern College of Music.
Lu, Xuejing ; Sun, Yanan ; Thompson, William Forde. / Deficits in melodic contour visualization in individuals with congenital amusia. Proceedings of the Ninth Triennial Conference of the European Society for the Cognitive Sciences of Music. editor / Jane Ginsborg ; Alexandra Lamont ; Michelle Phillips ; Stephanie Bramley. Manchester, UK : Royal Northern College of Music, 2015. pp. 559-562
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title = "Deficits in melodic contour visualization in individuals with congenital amusia",
abstract = "People with congenital amusia have difficulty with melodic contour processing, even when the pitch changes involved exceed their threshold for pitch discrimination. Patel et al. (2005) proposed the “Melodic Contour Deafness Hypothesis”, which posits that congenital amusia results from insensitivity to the direction of pitch movement rather than impaired processing of pitch change detection. Given that melodic processing requires both accurate perception of pitch change direction as well as the capacity to represent a succession of contour changes, it is unclear whether impairments in melodic contour processing observed in individuals with congenital amusia occur at a perceptual stage or at a stage of representing a contour pattern in memory. To disentangle these two stages, the present study examined cross-modal mapping using an audio-visual mismatch detection task. Twelve participants with congenital amusia and 12 matched controls were presented with tone sequences (tonal and atonal) and visual contours that corresponded to the melodic contour of the tones (i.e., sequences of dots that vary in spatial height corresponding to pitch changes). Participants were asked to respond as quickly as possible when they detected an audio-visual mismatch. Compared with control participants, amusic individuals made more errors in both tonal and atonal sequences. The finding suggests that individuals with congenital amusia are impaired in perceiving the up-down pattern of a melody. Furthermore, all participants showed a better performance on tonal sequences than atonal ones. In other words, tonal structure facilitated melodic contour processing.",
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Lu, X, Sun, Y & Thompson, WF 2015, Deficits in melodic contour visualization in individuals with congenital amusia. in J Ginsborg, A Lamont, M Phillips & S Bramley (eds), Proceedings of the Ninth Triennial Conference of the European Society for the Cognitive Sciences of Music. Royal Northern College of Music, Manchester, UK, pp. 559-562, Triennial Conference of the European Society for the Cognitive Sciences of Music (9th : 2015), Manchester, UK, 17/08/15.

Deficits in melodic contour visualization in individuals with congenital amusia. / Lu, Xuejing; Sun, Yanan; Thompson, William Forde.

Proceedings of the Ninth Triennial Conference of the European Society for the Cognitive Sciences of Music. ed. / Jane Ginsborg; Alexandra Lamont; Michelle Phillips; Stephanie Bramley. Manchester, UK : Royal Northern College of Music, 2015. p. 559-562.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

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Lu X, Sun Y, Thompson WF. Deficits in melodic contour visualization in individuals with congenital amusia. In Ginsborg J, Lamont A, Phillips M, Bramley S, editors, Proceedings of the Ninth Triennial Conference of the European Society for the Cognitive Sciences of Music. Manchester, UK: Royal Northern College of Music. 2015. p. 559-562