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Pitch contour impairment in congenital amusia: New insights from the Self-paced Audio-visual Contour Task (SACT) | |
Lu, Xuejing1,2,3,4; Sun, Yanan3,4; Ho, Hao Tam5,6; Thompson, William Forde3,4 | |
摘要 | Individuals with congenital amusia usually exhibit impairments in melodic contour processing when asked to compare pairs of melodies that may or may not be identical to one another. However, it is unclear whether the impairment observed in contour processing is caused by an impairment of pitch discrimination, or is a consequence of poor pitch memory. To help resolve this ambiguity, we designed a novel Self-paced Audio-visual Contour Task (SACT) that evaluates sensitivity to contour while placing minimal burden on memory. In this task, participants control the pace of an auditory contour that is simultaneously accompanied by a visual contour, and they are asked to judge whether the two contours are congruent or incongruent. In Experiment 1, melodic contours varying in pitch were presented with a series of dots that varied in spatial height. Amusics exhibited reduced sensitivity to audio-visual congruency in comparison to control participants. To exclude the possibility that the impairment arises from a general deficit in cross-modal mapping, Experiment 2 examined sensitivity to cross-modal mapping for two other auditory dimensions: timbral brightness and loudness. Amusics and controls were significantly more sensitive to large than small contour changes, and to changes in loudness than changes in timbre. However, there were no group differences in cross-modal mapping, suggesting that individuals with congenital amusia can comprehend spatial representations of acoustic information. Taken together, the findings indicate that pitch contour processing in congenital amusia remains impaired even when pitch memory is relatively unburdened. |
2017-06-15 | |
语种 | 英语 |
DOI | 10.1371/journal.pone.0179252 |
发表期刊 | PLOS ONE |
ISSN | 1932-6203 |
卷号 | 12期号:6页码:1-15 |
期刊论文类型 | Article |
收录类别 | SCI |
WOS关键词 | CROSS-MODAL SIMILARITY ; SHORT-TERM-MEMORY ; TONE-DEAFNESS ; SPATIAL REPRESENTATION ; SPEECH INTONATION ; MANDARIN CHINESE ; MELODIC CONTOUR ; PERCEPTION ; MUSIC ; DISCRIMINATION |
WOS标题词 | Science & Technology |
WOS研究方向 | Science & Technology - Other Topics |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000403364600027 |
Q分类 | Q1 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.psych.ac.cn/handle/311026/21587 |
专题 | 中国科学院心理健康重点实验室 |
作者单位 | 1.Inst Psychol, CAS Key Lab Mental Hlth, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China 3.Macquarie Univ, Dept Psychol, Sydney, NSW, Australia 4.ARC Ctr Excellence Cognit & Its Disorders, Sydney, NSW, Australia 5.Univ Pisa, Dept Translat Res New Technol Med & Surg, Pisa, Italy 6.Univ Sydney, Sch Psychol, Sydney, NSW, Australia |
第一作者单位 | 中国科学院心理健康重点实验室 |
推荐引用方式 GB/T 7714 | Lu, Xuejing,Sun, Yanan,Ho, Hao Tam,et al. Pitch contour impairment in congenital amusia: New insights from the Self-paced Audio-visual Contour Task (SACT)[J]. PLOS ONE,2017,12(6):1-15. |
APA | Lu, Xuejing,Sun, Yanan,Ho, Hao Tam,&Thompson, William Forde.(2017).Pitch contour impairment in congenital amusia: New insights from the Self-paced Audio-visual Contour Task (SACT).PLOS ONE,12(6),1-15. |
MLA | Lu, Xuejing,et al."Pitch contour impairment in congenital amusia: New insights from the Self-paced Audio-visual Contour Task (SACT)".PLOS ONE 12.6(2017):1-15. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Pitch contour impair(1568KB) | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 |
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