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Laterality in somatization

S K Min1, B O Lee

  • 1Department of Psychiatry, Yonsei University College of Medicine, Seoul, Korea.

Psychosomatic Medicine
|May 1, 1997
PubMed
Summary
This summary is machine-generated.

Somatic symptoms linked to emotional disturbances predominantly manifest on the left side of the body. This lateralization suggests a greater involvement of the right brain hemisphere in somatization.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Psychosomatic Medicine

Background:

  • Emotional disturbances like depression and anxiety often present with physical symptoms.
  • The lateralization of these somatic symptoms in relation to emotional distress is not well understood.

Purpose of the Study:

  • To investigate if somatic symptoms associated with emotional disturbances exhibit a lateralized pattern.
  • To explore the relationship between symptom lateralization and the severity of anxiety and depression.

Main Methods:

  • Sixty-one patients diagnosed with depressive, anxiety, or somatization disorders were assessed.
  • The study examined the distribution of somatic symptoms (e.g., pain, headache) on the left versus right side of the body.
  • Symptom lateralization was correlated with scores on the Hamilton Anxiety Scale and Hamilton Depression Scale.

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Main Results:

  • Somatic symptoms, particularly headache and pain, were significantly more prevalent on the left side of the body compared to the right.
  • No significant demographic differences (age, gender, diagnosis, etc.) were found between left-sided and right-sided symptom groups.
  • While not statistically significant, patients with left-sided symptoms tended to have higher anxiety and depression scores.

Conclusions:

  • The findings suggest a potential lateralization of somatization, with a predominance of symptoms on the left side.
  • This left-sided symptom pattern may indicate a greater involvement of the right cerebral hemisphere in the formation of somatization symptoms related to emotional disturbances.