The locus coeruleus-noradrenaline system facilitates attentional processing of action-triggered visual stimuli
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Published in | Journal of vision (Charlottesville, Va.) Vol. 14; no. 10; p. 338 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
22.08.2014
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Online Access | Get full text |
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AbstractList | Previous studies have demonstrated that attentional processing of visual stimuli is facilitated when stimulus onset is triggered by a voluntary action. We focused on pupil dilation that reflects the function of LC-NA system. We measured participants pupil size when the participant performed a rapid serial visual presentation task at the rate of 20 items/s. Under the voluntary conditions, after participants key press, the items in the task were switched from numerals of non-targets to letters of targets with temporal delays: 0-50, 100-150, 200-250, 300-350, 400-450, 600-650, and 800-850 ms. The switch occurred automatically without the key press under the control condition. Participants were asked to report the first four successive letters as targets. The pupil dilation occurred only at the end of the condition block, suggesting that the LC-NA system activates after participants learn the delay between the voluntary action and the onset of targets. We conclude that the LC-NA system plays an important role in the facilitation of transient attention for visual stimuli triggered by the voluntary action. Abstract only |
Author | Yoshimoto, S. Kihara, K. Takeuchi, T. Kondo, H. Kawahara, J. |
Author_xml | – sequence: 1 givenname: K. surname: Kihara fullname: Kihara, K. – sequence: 2 givenname: T. surname: Takeuchi fullname: Takeuchi, T. – sequence: 3 givenname: S. surname: Yoshimoto fullname: Yoshimoto, S. – sequence: 4 givenname: H. surname: Kondo fullname: Kondo, H. – sequence: 5 givenname: J. surname: Kawahara fullname: Kawahara, J. |
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Snippet | Abstract only Previous studies have demonstrated that attentional processing of visual stimuli is facilitated when stimulus onset is triggered by a voluntary action. We... |
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Title | The locus coeruleus-noradrenaline system facilitates attentional processing of action-triggered visual stimuli |
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