How do we modulate our emotions? Parametric fMRI reveals cortical midline structures as regions specifically involved in the processing of emotional valences

Alexander Heinzel, Felix Bermpohl, Robert Niese, Andrea Pfennig, Alvaro Pascual-Leone, Gottfried Schlaug, Georg Northoff

研究成果: 雜誌貢獻文章同行評審

76 引文 斯高帕斯(Scopus)

摘要

One of the major problems in affective neuroscience of healthy subjects as well as of patients with emotional dysfunctions is to disentangle emotional core functions and non-emotional processes. Emotional valence is considered an emotional key process. The present study employed a parametric functional magnetic resonance imaging (fMRI) study to address this question. Thirteen healthy volunteers were scanned during emotional stimulus processing (International Affective Picture System). The presented pictures covered the entire range of emotional valences. The fMRI data were consecutively subjected to a preliminary categorical (valence-independent) and a detailed parametric analysis, the latter using individual valence ratings as regressor. The parametric analysis revealed a linear valence-dependent modulation of the BOLD signal in the orbito- and dorsomedial prefrontal cortex (OMPFC, DMPFC), medial parietal cortex (MPC), and insula. In addition, we observed that emotional valence exerts its effects predominantly via modulation of signal decreases. We conclude that the psychological concept of emotional valence may be related to neural processing in cortical midline regions.
原文英語
頁(從 - 到)348-358
頁數11
期刊Cognitive Brain Research
25
發行號1
DOIs
出版狀態已發佈 - 9月 2005
對外發佈

ASJC Scopus subject areas

  • 行為神經科學
  • 認知神經科學
  • 實驗與認知心理學

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