Emotional facial palsy: an unusual and rarely explored neurological sign View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2022-07-11

AUTHORS

Giuseppina Miele, Luigi Lavorgna, Maria Maddalena Marrapodi, Gianmarco Abbadessa

ABSTRACT

The anatomy of the cortico-bulbar tract that drives voluntary movements of mimic muscles is well described. Some cases of facial palsy with inverse automatic-voluntary dissociation (emotional facial palsy; EFP) are reported in the literature. These cases suggested a completely independent path of the fibers whose lesion results in EFP. We aimed to review the clinical reports of EFP available in the literature to characterize the anatomical aspect of the fibers whose lesion results in the isolated impairment of spontaneous smiling. Cortico-pontine fibers that control spontaneous smiling arise from the medial surface of the prefrontal cortex and descend through the anterior limb of the internal capsule, thalamus, and brain steam, independently from those that control voluntary movement. The mesial temporal lobe, particularly the amygdala, plays a crucial role in the network driving emotionally evoked facial expressions. We would highlight the relevance of an unusual and rarely explored neurological sign that could be added to clinical examination in ruling out focal brain pathology, such as stroke, tumors, or multiple sclerosis. More... »

PAGES

6305-6307

References to SciGraph publications

  • 1992-03. Automatic-voluntary dissociation: An unusual facial paresis in a patient with probable multiple sclerosis in EUROPEAN ARCHIVES OF PSYCHIATRY AND CLINICAL NEUROSCIENCE
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10072-022-06256-9

    DOI

    http://dx.doi.org/10.1007/s10072-022-06256-9

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1149410635

    PUBMED

    https://www.ncbi.nlm.nih.gov/pubmed/35819562


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