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| 題名: | FM-selective networks in human auditory cortex revealed using fMRI and multivariate pattern classification |
| 作者: | 謝宜蕙;Hsieh, I-Hui;Fillmore, Paul;Rong, Feng;Hickok, Gregory;Saberi, Kourosh |
| 貢獻者: | 生醫理工學院認知神經科學研究所 |
| 關鍵詞: | Acoustic Stimulation;Adult;Animal cognition;Auditory Cortex - blood supply;Auditory Cortex - physiology;Auditory Threshold;Brain;Brain Mapping;Cells;Female;Frequencies;Humans;Image Processing, Computer-Assisted;Magnetic Resonance Imaging;Male;Neural Pathways - blood supply;Neural Pathways - physiology;Neurosciences;Oxygen - blood;Pattern Recognition, Physiological - physiology;Psychoacoustics;Reaction Time;Sound Localization - physiology;Young Adult |
| 日期: | 2012-09-01 |
| 上傳時間: | 2026-04-23 14:26:46 (UTC+8) |
| 出版者: | MIT Press Journals;One Rogers Street, Cambridge, MA 02142-1209, USA: MIT Press - Journals |
| 摘要: | 摘要： AbstractFrequency modulation (FM) is an acoustic feature of nearly all complex sounds. Directional FM sweeps are especially pervasive in speech, music, animal vocalizations, and other natural sounds. Although the existence of FM-selective cells in the auditory cortex of animals has been documented, evidence in humans remains equivocal. Here we used multivariate pattern analysis to identify cortical selectivity for direction of a multitone FM sweep. This method distinguishes one pattern of neural activity from another within the same ROI, even when overall level of activity is similar, allowing for direct identification of FM-specialized networks. Standard contrast analysis showed that despite robust activity in auditory cortex, no clusters of activity were associated with up versus down sweeps. Multivariate pattern analysis classification, however, identified two brain regions as selective for FM direction, the right primary auditory cortex on the supratemporal plane and the left anterior region of the superior temporal gyrus. These findings are the first to directly demonstrate existence of FM direction selectivity in the human auditory cortex.
其他題名： J Cogn Neurosci
出版者： One Rogers Street, Cambridge, MA 02142-1209, USA: MIT Press - Journals
出版日期： 2012-09-01
出處： Journal of Cognitive Neuroscience, 2012-09, Vol.24 (9), p.1896-1907
資源來源： EBSCOhost Academic Search Premier
版權： Copyright MIT Press Journals Sep 2012
識別號： ISSN: 0898-929X
識別號： ISSN: 1530-8898
識別號： EISSN: 1530-8898
識別號： DOI: 10.1162/jocn_a_00254
識別號： PMID: 22640390 |
| 顯示於類別: | [認知與神經科學研究所 ] 期刊論文
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