Audiovisual Interval Size Estimation Is Associated with Early Musical Training
Audiovisual Interval Size Estimation Is Associated with Early Musical Training
复制标题
DOI：
10.1371/journal.pone.0163589
复制
发表时间：
2016-10-19
期刊：
影响因子：
3.7
通讯作者：
Loui, Psyche
中科院分区：
文献类型：
--
作者：
Abel, Mary Kathryn;Li, H. Charles;Loui, Psyche
虽然音调是听觉感知的一个基本属性，但我们感知音调差异的能力存在显著的个体差异。关于听觉通道中的这些个体差异如何影响跨通道过程，如视听知觉，我们知之甚少。在这项研究中，我们询问音调知觉的个体差异是否会影响视听知觉，因为它与发病年龄和音乐训练年限有关。57名受试者在给予点光显示所唱音程的音频、视觉和视听刺激时，对音程大小进行主观评分。视听刺激分为一致刺激和不一致(视听失配)刺激。在纯视听、纯视听和视听一致的条件下，参与者的评分与间隔大小密切相关。在视听不一致的情况下，评分与音频的相关性比与视觉刺激的相关性更大，特别是对于那些音调感知能力更强、非语言智商得分更高的受试者。为了进一步研究音乐训练开始年龄和持续时间的影响，受试者被分为音乐训练组和未训练组。结果表明，在接受音乐训练的受试者中，在不一致的视听知觉过程中，参与者的评分与听觉间隔大小的相关程度与非语言智商和音乐训练开始年龄都相关。在分离出非语言智商后，音调辨别阈值不再与不一致的音频分数有关，而音乐训练的开始年龄仍然与不一致的音频分数有关。这些发现有助于进一步研究音乐训练的发展效应，特别是与视听感知过程有关的研究。
Although pitch is a fundamental attribute of auditory perception, substantial individual differences exist in our ability to perceive differences in pitch. Little is known about how these individual differences in the auditory modality might affect crossmodal processes such as audiovisual perception. In this study, we asked whether individual differences in pitch perception might affect audiovisual perception, as it relates to age of onset and number of years of musical training. Fifty-seven subjects made subjective ratings of interval size when given point-light displays of audio, visual, and audiovisual stimuli of sung intervals. Audiovisual stimuli were divided into congruent and incongruent (audiovisual-mismatched) stimuli. Participants' ratings correlated strongly with interval size in audio-only, visual-only, and audiovisual-congruent conditions. In the audiovisual-incongruent condition, ratings correlated more with audio than with visual stimuli, particularly for subjects who had better pitch perception abilities and higher nonverbal IQ scores. To further investigate the effects of age of onset and length of musical training, subjects were divided into musically trained and untrained groups. Results showed that among subjects with musical training, the degree to which participants' ratings correlated with auditory interval size during incongruent audiovisual perception was correlated with both nonverbal IQ and age of onset of musical training. After partialing out nonverbal IQ, pitch discrimination thresholds were no longer associated with incongruent audio scores, whereas age of onset of musical training remained associated with incongruent audio scores. These findings invite future research on the developmental effects of musical training, particularly those relating to the process of audiovisual perception.