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Large-scale neural correlates of affective picture processing

Open access
Andreas Keil, Margaret M. Bradley, Olaf Hauk, Brigitte S. Rockstroh, Thomas R. Elbert, Peter J. Lang·2002·Psychophysiology

Abstract

Hemodynamic and electrophysiological studies indicate differential brain response to emotionally arousing, compared to neutral, pictures. The time course and source distribution of electrocortical potentials in response to emotional stimuli, using a high-density electrode (129-sensor) array were examined here. Event-related potentials (ERPs) were recorded while participants viewed pleasant, neutral, and unpleasant pictures. ERP voltages were examined in six time intervals, roughly corresponding to P1, N1, early P3, late P3 and a slow wave window. Differential activity was found for emotional, compared to neutral, pictures at both of the P3 intervals, as well as enhancement of later posterior positivity. Source space projection was performed using a minimum norm procedure that estimates the source currents generating the extracranially measured electrical gradient. Sources of slow wave modulation were located in occipital and posterior parietal cortex, with a right-hemispheric dominance.

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OpenAlex · 10.1017/s0048577202394162

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Metadata

Authors
Keil, A., Bradley, M. M., Hauk, O., Rockstroh, B. S., Elbert, T. R., & Lang, P. J.
Venue
Psychophysiology
Publisher
Wiley
Published
2002-09-01
Volume
39
Issue
5
Pages
641-649
ISSN
0048-5772 (ISSN-L)
OpenAlex
W2156981839
Cited by
678
References
38
FWCI
5.65
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Large-scale neural correlates of affective picture processing. https://app.cochat.ai/papers/10.1017/s0048577202394162
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Keil, A., Bradley, M. M., Hauk, O., Rockstroh, B. S., Elbert, T. R., & Lang, P. J. (2002). Large-scale neural correlates of affective picture processing. Psychophysiology. https://doi.org/10.1017/s0048577202394162

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