@article{Schupp2007Expli-11167,
  year={2007},
  doi={10.1186/1471-2202-8-16},
  title={Explicit attention interferes with selective emotion processing in human extrastriate cortex},
  number={1},
  volume={8},
  issn={1471-2202},
  journal={BMC Neuroscience},
  author={Schupp, Harald T. and Stockburger, Jessica and Bublatzky, Florian and Junghöfer, Markus and Weike, Almut I. and Hamm, Alfons},
  note={Article Number: 16}
}

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    <dcterms:bibliographicCitation>BMC Neuroscience ; 8 (2007). - 16</dcterms:bibliographicCitation>
    <dc:creator>Hamm, Alfons</dc:creator>
    <dc:contributor>Weike, Almut I.</dc:contributor>
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    <dc:contributor>Bublatzky, Florian</dc:contributor>
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    <dc:contributor>Stockburger, Jessica</dc:contributor>
    <dc:creator>Stockburger, Jessica</dc:creator>
    <dcterms:abstract xml:lang="eng">BACKGROUND: Brain imaging and event-related potential studies provide strong evidence that emotional stimuli guide selective attention in visual processing. A reflection of the emotional attention capture is the increased Early Posterior Negativity (EPN) for pleasant and unpleasant images compared to neutral images (~150-300 ms poststimulus). The present study explored whether this early emotion discrimination reflects an automatic phenomenon or is subject to interference by competing processing demands. Thus, emotional processing was assessed while participants performed a concurrent visual attention task varying in processing demands. RESULTS: Participants successfully performed the primary visual attention task as revealed by behavioral performance and selected event-related potential components (Selection Negativity and P3b). Replicating previous results, emotional modulation of the EPN was observed in a task condition with low processing demands. In contrast, pleasant and unpleasant pictures failed to elicit increased EPN amplitudes compared to neutral images in more demanding explicit attention task conditions. Further analysis determined that pleasant and unpleasant pictures high in emotional arousal are also subject to interference in experimental conditions with high task load. Taken together, performing demanding feature-based counting tasks interfered with differential emotion processing indexed by the EPN. CONCLUSIONS: The present findings demonstrate that taxing perceptual resources by a competing primary visual attention task markedly attenuated the early discrimination of emotional from neutral picture contents. Thus, these results provide further empirical support for an interference account of the emotion-attention interaction under conditions of competition. Previous studies revealed the interference of selective emotion processing when attentional resources were directed to locations of explicitly task-relevant stimuli. The present data suggest that interference of emotion processing by competing task demands is a more general phenomenon extending to the domain of feature-based attention. Furthermore, the results are inconsistent with the notion of effortlessness, i.e., early emotion discrimination despite concurrent task demands. These findings implicate to assess the presumed automatic nature of emotion processing at the level of specific aspects rather than considering automaticity as an all-or-none phenomenon.</dcterms:abstract>
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    <dc:creator>Bublatzky, Florian</dc:creator>
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    <dcterms:title>Explicit attention interferes with selective emotion processing in human extrastriate cortex</dcterms:title>
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