Anterior N2 predicts subsequent viewing time and interest rating for novel drawings

Psychophysiology Volume 44 Issue 5 Page 687-696 published_at 2007-09
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Title ( eng )
Anterior N2 predicts subsequent viewing time and interest rating for novel drawings
Creator
Shibuya Yoshie
Hori Tadao
Source Title
Psychophysiology
Volume 44
Issue 5
Start Page 687
End Page 696
Abstract
Event-related brain potentials (ERPs) in response to novel pictures and subsequent visual exploration were examined. Eighteen undergraduates viewed 120 novel drawings as long as they wished. ERPs were calculated separately for drawings that were viewed longer or shorter than the median viewing time of each participant. The drawings viewed longer elicited a larger anterior negativity (N2) peaking at 245 ms than the shorter viewed drawings. This effect disappeared and the overall amplitude of the N2 decreased when the same set of drawings was presented again in a subsequent interest-rating session. Drawings rated as more interesting elicited a larger N2 than did drawings rated as less interesting. This study demonstrates a type of anterior N2 that is sensitive to stimulus unfamiliarity or difficulty in encoding, which reflects a conflict between stimulus input and existing knowledge and prompts further recognition processes and visual exploration.
Keywords
curiosity
interest
exploratory behavior
event-related potentials
novelty
conflict
unfamiliarity
picture
NDC
Psychology [ 140 ]
Language
eng
Resource Type journal article
Publisher
Blackwell
Date of Issued 2007-09
Rights
Copyright (c) 2007 Society for Psychophysiological Research
Publish Type Author’s Original
Access Rights open access
Source Identifier
The definite version is avairable at www.blackwell-synergy.com
[NCID] AA00345449
[ISSN] 0048-5772
[DOI] 10.1111/j.1469-8986.2007.00539.x
[DOI] http://dx.doi.org/10.1111/j.1469-8986.2007.00539.x isVersionOf