L'homme qui rit: inappropriate laughter and release phenomena of the frontal subdominant lobe

Behav Med. 1994 Spring;20(1):44-6. doi: 10.1080/08964289.1994.9934615.

Abstract

Witzelsucht and moria are time-honored neurobehavioral terms. Witzelsucht is a tendency to tell inappropriate jokes, and moria is euphoric behavior. Focal right-orbitofrontal parenchymal lesion is often the anatomical substrate for these behavioral attitudes. This case report presents a patient with a longstanding witzelsucht-moria behavior. Single photon emission computerized tomography (SPECT) showed hypoperfused right-frontoparietal area in the absence of structural damage.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Euphoria
  • Frontal Lobe / diagnostic imaging
  • Frontal Lobe / physiopathology*
  • Functional Laterality* / physiology
  • Hemiplegia / physiopathology
  • Humans
  • Laughter* / psychology
  • Male
  • Neurocognitive Disorders / diagnosis
  • Neurocognitive Disorders / physiopathology*
  • Neurocognitive Disorders / psychology
  • Neuropsychological Tests
  • Tomography, Emission-Computed, Single-Photon
  • Tomography, X-Ray Computed