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Related Experiment Video

Updated: May 30, 2025

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When It's Not Tics: Functional Tic-Like Behaviors.

Shannon Dean1, Souraya Torbey2

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|January 29, 2025
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Summary

Functional tic-like behaviors (FTLBs) are a manifestation of functional neurologic disorder. Unlike Tourette syndrome, FTLBs present later in life with abrupt, complex symptoms and respond to behavioral therapy.

Keywords:
FNDFunctional neurologic disorderFunctional tic-like behaviorsFunctional ticsTiktok tics

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Area of Science:

  • Neurology
  • Psychiatry
  • Behavioral Science

Background:

  • Functional tic-like behaviors (FTLBs) are a subtype of functional neurologic disorder.
  • An increase in FTLBs was observed in adolescents and young adults during the COVID-19 pandemic, often linked to social media.
  • FTLBs can be misdiagnosed as neurodevelopmental tic disorders such as Tourette syndrome.

Purpose of the Study:

  • To differentiate FTLBs from neurodevelopmental tic disorders.
  • To highlight key clinical features distinguishing FTLBs.
  • To inform appropriate diagnostic and treatment strategies for FTLBs.

Main Methods:

  • Clinical observation and case study analysis.
  • Comparative analysis of FTLB characteristics against Tourette syndrome.
  • Review of patient data from the COVID-19 pandemic outbreak.

Main Results:

  • FTLBs typically manifest with an older age of onset compared to Tourette syndrome.
  • Symptom onset in FTLBs is more abrupt and characterized by complex tic-like behaviors.
  • FTLBs often present with additional features atypical of Tourette syndrome.

Conclusions:

  • FTLBs are distinct from neurodevelopmental tic disorders and require specific diagnostic criteria.
  • While standard tic disorder treatments are often ineffective, FTLBs show positive response to targeted behavioral therapies.
  • Increased awareness and understanding of FTLBs are crucial for accurate diagnosis and effective management.