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Central and Divided Visual Field Presentation of Emotional Images to Measure Hemispheric Differences in Motivated Attention
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Hemispheric differences in the processing of attachment words.

Christine Mohr1, Angela C Rowe, Matthew T Crawford

  • 1Department of Experimental Psychology, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, UK. christine.mohr@bris.ac.uk

Journal of Clinical and Experimental Neuropsychology
|October 22, 2008
PubMed
Summary
This summary is machine-generated.

This study investigated emotional word processing, finding a right hemisphere advantage for positive over negative attachment words. This challenges the valence hypothesis, suggesting specific roles in processing interpersonal relationship information.

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Psycholinguistics

Background:

  • Inconsistent findings exist regarding the valence hypothesis in emotional processing.
  • Ambiguously valenced stimuli may contribute to these inconsistencies.
  • Attachment words offer a clearer valence distinction for research.

Purpose of the Study:

  • To investigate hemispheric differences in processing positive and negative attachment words.
  • To test the valence hypothesis using clearly defined emotional stimuli.
  • To explore the role of the right hemisphere in emotional information processing.

Main Methods:

  • Lexical decision tasks were administered to 50 participants.
  • A bilateral simultaneous presentation paradigm was employed.
  • Positive and negative attachment words were used as stimuli.

Main Results:

  • A general right-visual-field advantage was observed for lexical decisions.
  • Positive words were processed with greater accuracy than negative words.
  • A significant left-visual-field advantage emerged for positive over negative words.

Conclusions:

  • The valence hypothesis was not supported in its general form.
  • Findings suggest a specialized role for the right hemisphere in processing positive emotional information.
  • The right hemisphere may be particularly involved in processing positive interpersonal relationship information.