Central and divided visual field presentation of emotional images to measure hemispheric differences in motivated attention

Aminda J. O'hare, Ruth Ann Atchley, Keith M. Young

Research output: Contribution to journalArticle

Abstract

Two dominant theories on lateralized processing of emotional information exist in the literature. One theory posits that unpleasant emotions are processed by right frontal regions, while pleasant emotions are processed by left frontal regions. The other theory posits that the right hemisphere is more specialized for the processing of emotional information overall, particularly in posterior regions. Assessing the different roles of the cerebral hemispheres in processing emotional information can be difficult without the use of neuroimaging methodologies, which are not accessible or affordable to all scientists. Divided visual field presentation of stimuli can allow for the investigation of lateralized processing of information without the use of neuroimaging technology. This study compared central versus divided visual field presentations of emotional images to assess differences in motivated attention between the two hemispheres. The late positive potential (LPP) was recorded using electroencephalography (EEG) and event-related potentials (ERPs) methodologies to assess motivated attention. Future work will pair this paradigm with a more active behavioral task to explore the behavioral impacts on the attentional differences found.

Original languageEnglish (US)
Article numbere56257
JournalJournal of Visualized Experiments
Volume2017
Issue number129
DOIs
StatePublished - Nov 16 2017

Keywords

  • Behavior
  • Divided visual field
  • Emotion
  • Event-related potentials
  • Issue 129
  • Lateral presentation
  • Motivated attention
  • Valence and arousal

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