Publication in refereed journal
香港中文大学研究人员 ( 现职)
| 黄俊文教授 (语言学及现代语言系) |
全文
| 数位物件识别号 (DOI) http://dx.doi.org/10.1016/j.nlm.2013.11.011 |
引用次数
Web of Sciencehttp://aims.cuhk.edu.hk/converis/portal/Publication/10WOS source URL
其它资讯
摘要Two forms of brainstem plasticity are known to occur: an immediate stimulus probability-based and learning-dependent plasticity. Whether these kinds of plasticity interact is unknown. We examined this question in a training experiment involving three phases: (I) an initial baseline measurement, (2) a 9-session training paradigm, and (3) a retest measurement. At the outset of the experiment, auditory brainstem responses (ABR) were recorded to two unfamiliar pitch patterns presented in an oddball paradigm. Then half the participants underwent sound-to-meaning training where they learned to match these pitch patterns to novel words, with the remaining participants serving as controls who received no auditory training. Nine days after the baseline measurement, the pitch patterns were re-presented to all participants using the same oddball paradigm. Analysis of the baseline recordings revealed an effect of probability: when a sound was presented infrequently, the pitch contour was represented less accurately in the ABR than when it was presented frequently. After training, pitch tracking was more accurate for infrequent sounds, particularly for the pitch pattern that was encoded more poorly pre-training. However, the control group was stable over the same interval. Our results provide evidence that probability-based and learning-dependent plasticity interact in the brainstem. (C) 2013 Elsevier Inc. All rights reserved.
着者Skoe E, Chandrasekaran B, Spitzer ER, Wong PCM, Kraus N
期刊名称Neurobiology of Learning and Memory
出版年份2014
月份3
日期1
卷号http://aims.cuhk.edu.hk/converis/portal/Publication/109
出版社ACADEMIC PRESS INC ELSEVIER SCIENCE
页次82 - 93
国际标準期刊号http://aims.cuhk.edu.hk/converis/portal/Publication/1074-7427
电子国际标準期刊号http://aims.cuhk.edu.hk/converis/portal/Publication/1095-9564
语言英式英语
关键词Auditory learning; Brainstem; Neuroplasticity
Web of Science 学科类别Behavioral Sciences; BEHAVIORAL SCIENCES; Neurosciences; NEUROSCIENCES; Neurosciences & Neurology; Psychology; PSYCHOLOGY; Psychology, Multidisciplinary; PSYCHOLOGY, MULTIDISCIPLINARY
