The posterior sustained negativity revisited
An SPN reanalysis of Jacobsen and Höfel (2003)
Publication date
2018-01-10
Document type
Research article
Author
Organisational unit
Publisher
MDPI
Series or journal
Symmetry
ISSN
Periodical volume
10
Periodical issue
1
Article ID
27
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
Keyword
Symmetry processing
Aesthetic judgments of beauty
Abstract
Symmetry is an important cue for the aesthetic judgment of beauty. Using a binary forced-choice format in a cued mixed design, Jacobsen and Höfel (2003) compared aesthetic judgments of beauty and symmetry judgments of novel graphic patterns. A late posterior sustained negativity elicited by symmetric patterns was observed in the symmetry judgment condition, but not in the beauty judgement condition. Therefore, this negativity appeared to be mainly driven by the task.In a series of studies, Bertamini, Makin, and colleagues observed a comparable sustained posterior negativity (SPN) to symmetric stimuli, mainly taken to reflect obligatory symmetry processing independent of task requirements. We reanalyzed the data by Jacobsen and Höfel (2003) using similar parameters for data analysis as Bertamini, Makin, and colleagues to examine these apparent differences. The reanalysis confirmed both a task-driven effect on the posterior sustained negativity/SPN to symmetric patterns in the symmetry judgment condition and a strong symmetry-driven SPN to symmetric patterns. Differences between the references used for analyses of the electroencephalogram (EEG) had an effect. Based on the reanalysis, the Jacobsen and Höfel (2003) data also fit well with Bertamini's, Makin's, and colleagues' account of obligatory symmetry processing. © 2018 by the authors.
Cite as
Jacobsen, T., Klein, S., & Löw, A. (2018). The Posterior Sustained Negativity Revisited—An SPN Reanalysis of Jacobsen and Höfel (2003). Symmetry, 10(1), 27. https://doi.org/10.3390/sym10010027
Version
Published version
Access right on openHSU
Metadata only access