Measurement of Object-based Attention with Steady-state Visual Evoked Potential
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- KURIKI Ichiro
- Tohoku University
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- OMORI Nobutaka
- Tohoku University
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- KASHIWASE Yoshiyuki
- Tohoku University
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- MATSUMIYA Kazumichi
- Tohoku University
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- TOKUNAGA Rumi
- Tohoku University
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- SHIOIRI Satoshi
- Tohoku University
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Description
<p>The spatial extent of visual attention, which facilitates perceptual performances, has been classified into spatial and object-based attention. Object-based attention refers to a type of attention limited within an object that encloses a cued location, which contrasts with spatial attention that spreads around the attentional focus, regardless of the object shape. Whether object-based attention is enabled by the deformation of an attentional “spotlight” or by the prioritization of locations to which the attentional spotlight is directed is a matter of much debate. The present study addresses this issue by employing an EEG (electro-encephalogram) technique called steady-state visual evoked potentials (SSVEP) during a psychophysical experiment. The SSVEP amplitude is modulated by visual attention. During the EEG recording, we asked participants to perform a rapid serial visual presentation task designed to exhibit object-based attention, and a simple detection task to measure the spatial spreading/deployment of attention. The visual stimuli flickered at different frequencies at different spatial locations, which enabled us to tag stimulus locations with temporal-frequency components in the EEG data. We found an effect of object-based attention on SSVEP amplitudes and behavioral performances. Additionally, the absence of event related potential changes at the cued location, triggered by random and frequent presentations of detection-task stimuli throughout a trial, suggests that object-based attention may be based on a steady state mechanism, i.e., spatial spreading, rather than a dynamic one, such as prioritizing shifts of attention to locations within the cued object.</p>
Journal
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- Japanese Journal of Physiological Psychology and Psychophysiology
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Japanese Journal of Physiological Psychology and Psychophysiology 33 (1), 33-46, 2015
Japanese Society for Physiological Psychology and Psychophysiology
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Keywords
Details 詳細情報について
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- CRID
- 1390001204656212224
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- NII Article ID
- 130005256729
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- NII Book ID
- AN10091236
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- ISSN
- 2185551X
- 02892405
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- NDL BIB ID
- 027471518
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed