Emotional facilitation of sensory processing in the visual cortex

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2003
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Junghöfer, Markus
Weike, Almut I.
Hamm, Alfons
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Zusammenfassung

A key function of emotion is the preparation for action. However, organization of successful behavioral strategies depends on efficient stimulus encoding. The present study tested the hypothesis that perceptual encoding in the visual cortex is modulated by the emotional significance of visual stimuli. Event-related brain potentials were measured while subjects viewed pleasant, neutral, and unpleasant pictures. Early selective encoding of pleasant and unpleasant images was associated with a posterior negativity, indicating primary sources of activation in the visual cortex. The study also replicated previous findings in that affective cues also elicited enlarged late positive potentials, indexing increased stimulus relevance at higher-order stages of stimulus processing. These results support the hypothesis that sensory encoding of affective stimuli is facilitated implicitly by natural selective attention. Thus, the affect system not only modulates motor output (i.e., favoring approach or avoidance dispositions), but already operates at an early level of sensory encoding.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
150 Psychologie
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Evoked Potentials/*physiology, Affect/*physiology, Parietal Lobe/physiology, Visual Cortex/*physiology, Brain Mapping
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ISO 690SCHUPP, Harald T., Markus JUNGHÖFER, Almut I. WEIKE, Alfons HAMM, 2003. Emotional facilitation of sensory processing in the visual cortex. In: Psychological Science. 2003, 14, pp. 7-13. Available under: doi: 10.1111/1467-9280.01411
BibTex
@article{Schupp2003Emoti-10579,
  year={2003},
  doi={10.1111/1467-9280.01411},
  title={Emotional facilitation of sensory processing in the visual cortex},
  volume={14},
  journal={Psychological Science},
  pages={7--13},
  author={Schupp, Harald T. and Junghöfer, Markus and Weike, Almut I. and Hamm, Alfons}
}
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