Emotional perception: correlation of functional MRI and event-related potentials

Cereb Cortex. 2007 May;17(5):1085-91. doi: 10.1093/cercor/bhl017. Epub 2006 Jun 12.


Dense-array electrocortical and functional hemodynamic measures of human brain activity were collected to assess the relationship between 2 established neural measures of emotional reactivity. Recorded in parallel sessions, the slow-wave late positive potential (LPP) and visual cortical blood oxygen level-dependent (BOLD) signals were both modulated by the rated intensity of picture arousal. The amplitude of the LPP correlated significantly with BOLD intensity in lateral occipital, inferotemporal, and parietal visual areas across picture contents. Estimated strength of modeled regional sources did not correlate significantly with regional BOLD intensity. These data suggest that the enhanced positive slow wave seen over posterior sites during emotional picture processing represents activity in a circuit of visual cortical structures, reflecting a perceptual sensitivity to the motivational relevance of visual scenes.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Adult
  • Arousal / physiology*
  • Brain Mapping / methods*
  • Emotions / physiology*
  • Evoked Potentials, Visual / physiology*
  • Humans
  • Magnetic Resonance Imaging / methods*
  • Male
  • Statistics as Topic
  • Visual Cortex / physiology*
  • Visual Perception / physiology*