The "Oddball CNV" as an indicator of different information processing in patients with panic disorders

Autor(en)

Christian Korunka, Thomas Wenzel, Herbert Bauer

Abstrakt

In previous studies we found an inverse relationship between CNV amplitude and the probability of the occurrence of the warning stimulus (S1) in a cued reaction time task. The aim of the present study was to investigate this ‘oddball effect’ on CNV amplitude (Oddball CNV) in patients with anxiety disorders, since this effect describes the influence of event probability on reactive as well as proactive components of information processing. Patients suffering from panic disorders with or without agoraphobia and controls participated in a choice reaction time experiment. The subjects' task was to respond to flashes (S2s), cued 4 s in advance in random order by one of two easily distinguishable acoustic stimuli (Sta, S1b). In condition 1 the probability of S1a and S1b was 0.2 and 0.8, respectively, and in condition 2 0.5 for both S1s. The DC-EEG was recorded from F3, F4, C3, Cz, C4 and P3, linked mastoids as the reference. The data obtained confirm the oddball effect on the CNV amplitude, show clear deviations of patients in this effect, and also indicate remarkable differences in CNV shape between patients and controls. These observations are discussed as differences in information processing and information utilization.

Organisation(en)

Institut für Arbeits-, Wirtschafts- und Sozialpsychologie

Journal

International Journal of Psychophysiology

Band

15

Seiten

207-215

Anzahl der Seiten

8

ISSN

0167-8760

DOI

https://doi.org/0.1016/0167-8760(93)90004-9

Publikationsdatum

1993

Peer-reviewed

Ja

ÖFOS 2012

501019 Psychotherapie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/the-oddball-cnv-as-an-indicator-of-different-information-processing-in-patients-with-panic-disorders(83187cea-aab6-46ee-a8e4-4ec2ec7ae357).html