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タイトル: | Top-down and bottom-up attention cause the ventriloquism effect with distinct electroencephalography modulations |
著者: | Kumagai, Toshihiro Mizuhara, Hiroaki |
著者名の別形: | 熊谷, 俊宏 水原, 啓暁 |
キーワード: | amplitude modulation exogenous/endogenous attention multimodal integration phase shifts theta/alpha oscillation |
発行日: | 15-Jun-2016 |
出版者: | Lippincott Williams and Wilkins |
誌名: | NeuroReport |
巻: | 27 |
号: | 9 |
開始ページ: | 647 |
終了ページ: | 651 |
抄録: | The ventriloquism effect is a critical phenomenon for understanding the underlying mechanisms of multisensory integration. Cross-modal spatial attention causes a distortion of sound localization, although the neural basis of the effect remains an unanswered question. We hypothesized that top-down and bottom-up visual-spatial attention causes the ventriloquism effect with different modulations of ongoing neural oscillation. To test this hypothesis, human scalp electroencephalography (EEG) was measured during a sound localization task. Top-down attention suppressed the EEG amplitude in the alpha frequency (10 Hz) over the contralateral temporal electrode sites to visual cue hemifields. Bottom-up attention shifted the EEG phase to the theta frequency (7 Hz), rather than suppressing the amplitude. Two different neural mechanisms of ongoing neural oscillation contributed toward the ventriloquism effect, with different spatial attention. |
著作権等: | © 2016 Wolters Kluwer Health | Lippincott Williams & Wilkins This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NCND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially. |
URI: | http://hdl.handle.net/2433/259302 |
DOI(出版社版): | 10.1097/WNR.0000000000000590 |
PubMed ID: | 27128725 |
出現コレクション: | 学術雑誌掲載論文等 |
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