Korean J Biol Psychiatry.  2007 May;14(2):129-141.

Empathy and Mood Awareness Reflected in the Resting-State Brain Metabolic Activity in the Patients with Schizophrenia and Normal Subjects

Affiliations
  • 1Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Gwangju, Korea. jaejkim@yonsei.ac.kr
  • 2Department of Psychiatry, Yonsei University College of Medicine, Seoul, Korea.
  • 3Department of Psychiatry, Hallym University Sacred Heart Hospital, Anyang, Korea.
  • 4Department of Diagnostic Radiology, Yonsei University College of Medicine, Seoul, Korea.

Abstract


OBJECTIVES
Empathy has been conceptualized as the ability of emotional resonance and perspective-taking. Emotional awareness has been proposed as the basis of empathy. In this study we examined the relationship between empathy and mood awareness and their neural correlates in resting-state activity in normal controls and patients with schizophrenia.
METHODS
Empathy and mood awareness scale scores were compared between 29 patients with schizophrenia and 21 normal controls by voxel-based t-tests and voxel-based correlation analyses of resting-state 18F-FDG PET images.
RESULTS
Empathy and mood labeling scale scores were significantly decreased in schizophrenic patients. Mood monitoring was positively correlated with empathy score in normal controls, but not in schizophrenic patients. In normal controls, empathy was positively correlated with resting-state activities in the intraparietal sulcus and mood monitoring was positively correlated with the temporal pole, frontopolar cortex, inferior temporal gyrus, entorhinal cortex and the subgenual prefrontal cortex resting activities. The orbitofrontal cortex resting activity was positively correlated with mood monitoring-related subgenual prefrontal cortex activity in the normal controls. Patients with schizophrenia showed decreased orbitofrontal resting activity and loss of its correlations with mood monitoring-related regional activities.
CONCLUSION
This study showed that alteration in the resting-state activity in schizophrenia may reflect dysfunctional empathy and distorted characteristic of emotional awareness. However, the resting-state activity may not reflect the relationship between emotional awareness and empathy.

Keyword

Empathy; Emotional awareness; Schizophrenia; Resting-state; Orbitofrontal cortex; PET

MeSH Terms

Brain*
Empathy*
Entorhinal Cortex
Fluorodeoxyglucose F18
Humans
Prefrontal Cortex
Schizophrenia*
Fluorodeoxyglucose F18
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