Emotion-Modulated Performance and Activity in Left Dorsolateral Prefrontal Cortex

Functional MRI (fMRI) was used to examine the relationship between processing of pleasant and unpleasant stimuli and activity in prefrontal cortex. Twenty volunteers identified the colors in which pleasant, neutral, and unpleasant words were printed. Pleasant words prompted more activity bilaterally...

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Bibliographic Details
Published in:Emotion (Washington, D.C.) D.C.), 2005-06, Vol.5 (2), p.200-207
Main Authors: Herrington, John D, Mohanty, Aprajita, Koven, Nancy S, Fisher, Joscelyn E, Stewart, Jennifer L, Banich, Marie T, Webb, Andrew G, Miller, Gregory A, Heller, Wendy
Format: Article
Language:English
Subjects:
Adult
Affectivity. Emotion
Anatomical correlates of behavior
Behavioral psychophysiology
Biological and medical sciences
Dorsolateral Prefrontal Cortex
Electroencephalography
Emotional Responses
Emotional States
Emotions
Female
Functional Laterality
Fundamental and applied biological sciences. Psychology
Human
Humans
Language
Magnetic Resonance Imaging
Male
Personality. Affectivity
Prefrontal Cortex
Prefrontal Cortex - physiology
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time
Task Performance and Analysis
Words (Phonetic Units)
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Summary:Functional MRI (fMRI) was used to examine the relationship between processing of pleasant and unpleasant stimuli and activity in prefrontal cortex. Twenty volunteers identified the colors in which pleasant, neutral, and unpleasant words were printed. Pleasant words prompted more activity bilaterally in dorsolateral prefrontal cortex (DLPFC) than did unpleasant words. In addition, pleasant words prompted more activity in left than in right DLPFC. Response speed to pleasant words was correlated with DLPFC activity. These data directly link positive affect, enhanced performance, and prefrontal activity, providing some of the first fMRI evidence supporting models of emotional valence and frontal brain asymmetry based on electroencephalography (EEG).
ISSN:1528-3542
1931-1516
DOI:10.1037/1528-3542.5.2.200