失配负性
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神经科学
听觉皮层
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皮质电图
心理学
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颞叶皮质
感觉系统
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刺激(心理学)
认知心理学
脑电图
听力学
功能磁共振成像
医学
作者
Shigeta Fujitani,Naoto Kunii,Keisuke Nagata,Megumi Takasago,Sohei Shimada,Mariko Tada,Kazuhiro Kirihara,Misako Komatsu,Takanori Uka,Kiyoto Kasai,Nobuhito Saito
标识
DOI:10.1093/cercor/bhad508
摘要
Auditory sensory processing is assumed to occur in a hierarchical structure including the primary auditory cortex (A1), superior temporal gyrus, and frontal areas. These areas are postulated to generate predictions for incoming stimuli, creating an internal model of the surrounding environment. Previous studies on mismatch negativity have indicated the involvement of the superior temporal gyrus in this processing, whereas reports have been mixed regarding the contribution of the frontal cortex. We designed a novel auditory paradigm, the "cascade roving" paradigm, which incorporated complex structures (cascade sequences) into a roving paradigm. We analyzed electrocorticography data from six patients with refractory epilepsy who passively listened to this novel auditory paradigm and detected responses to deviants mainly in the superior temporal gyrus and inferior frontal gyrus. Notably, the inferior frontal gyrus exhibited broader distribution and sustained duration of deviant-elicited responses, seemingly differing in spatio-temporal characteristics from the prediction error responses observed in the superior temporal gyrus, compared with conventional oddball paradigms performed on the same participants. Moreover, we observed that the deviant responses were enhanced through stimulus repetition in the high-gamma range mainly in the superior temporal gyrus. These features of the novel paradigm may aid in our understanding of auditory predictive coding.
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