Spider phobics more easily see a spider in morphed schematic pictures

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1744_9081_3_59.pdf
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2007
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Buchmann, Arlette
Lauche, Romy
Kolassa, Stephan
Partchev, Ivailo
Miltner, Wolfgang H. R.
Musial, Frauke
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Behavioral and Brain Functions. 2007, 3(59). Available under: doi: 10.1186/1744-9081-3-59
Zusammenfassung

Background: Individuals with social phobia are more likely to misinterpret ambiguous social situations as more threatening, i.e. they show an interpretive bias. This study investigated whether such a bias also exists in specific phobia.
Methods: Individuals with spider phobia or social phobia, spider aficionados and non-phobic controls saw morphed stimuli that gradually transformed from a schematic picture of a flower into a schematic picture of a spider by shifting the outlines of the petals until they turned into spider legs. Participants' task was to decide whether each stimulus was more similar to a spider, a flower or to neither object while EEG was recorded.
Results: An interpretive bias was found in spider phobia on a behavioral level: with the first opening of the petals of the flower anchor, spider phobics rated the stimuli as more unpleasant and arousing than the control groups and showed an elevated latent trait to classify a stimulus as a spider and a response-time advantage for spider-like stimuli. No cortical correlates on the level of ERPs of this interpretive bias could be identified. However, consistent with previous studies, social and spider phobic persons exhibited generally enhanced visual P1 amplitudes indicative of hypervigilance in phobia.
Conclusion: Results suggest an interpretive bias and generalization of phobia-specific responses in specific phobia. Similar effects have been observed in other anxiety disorders, such as social phobia and posttraumatic stress disorder.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
150 Psychologie
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spider phobia, schematic pictures, interpretive bias
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ISO 690KOLASSA, Iris-Tatjana, Arlette BUCHMANN, Romy LAUCHE, Stephan KOLASSA, Ivailo PARTCHEV, Wolfgang H. R. MILTNER, Frauke MUSIAL, 2007. Spider phobics more easily see a spider in morphed schematic pictures. In: Behavioral and Brain Functions. 2007, 3(59). Available under: doi: 10.1186/1744-9081-3-59
BibTex
@article{Kolassa2007Spide-10999,
  year={2007},
  doi={10.1186/1744-9081-3-59},
  title={Spider phobics more easily see a spider in morphed schematic pictures},
  number={59},
  volume={3},
  journal={Behavioral and Brain Functions},
  author={Kolassa, Iris-Tatjana and Buchmann, Arlette and Lauche, Romy and Kolassa, Stephan and Partchev, Ivailo and Miltner, Wolfgang H. R. and Musial, Frauke}
}
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