HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Education / Faculty of Education >
Peer-reviewed Journal Articles, etc >

Emergence of visual objects involves multiple stages of spatial selection

Files in This Item:
RevisedManuscript_Kasai Final_Huscup.pdf883.36 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Emergence of visual objects involves multiple stages of spatial selection
Authors: Kasai, Tetsuko Browse this author →KAKEN DB
Takeya, Ryuji Browse this author
Tanaka, Sho Browse this author
Keywords: Spatial attention
Perceptual load
Event-related potential
Issue Date: Feb-2015
Publisher: Springer
Journal Title: Attention perception & psychophysics
Volume: 77
Issue: 2
Start Page: 441
End Page: 449
Publisher DOI: 10.3758/s13414-014-0799-8
PMID: 25425226
Abstract: Attention may select objects or perceptual groups as fundamental units. Previous studies with event-related potentials (ERPs) have found that obligatory attention-spreading over spatial regions within stable objects is associated with intermediate feedforward visual processing, as reflected by the posterior N1 component of the ERP at a latency of 140-180 ms. The present study examined object-based spatial attention effects in response to individual objects, by recording lateralized ERP attention effects over the posterior scalp (i.e., contralateral versus ipsilateral to the attended visual fields). The stumuli were bilateral unfilled line objects with minimal figural enhancement, and their connectedness and the difficulty of the perceptual task were manipulated. The effects of spatial attention on successive ERP components (N1, P2, and N2) provided information on the timing of the different stages of processing that underlie the formation of perceptual objects.
Rights: The final publication is available at Springer via
Type: article (author version)
Appears in Collections:教育学院・教育学研究院 (Graduate School of Education / Faculty of Education) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 河西 哲子

Export metadata:

OAI-PMH ( junii2 , jpcoar )


Feedback - Hokkaido University