Could the palmomental reflex predict motor neuron dysfunction?


  • The palmomental reflex (PMR) is strongly associated with upper motor neuron dysfunction (UMN), specifically corticobulbular dysfunction, in people with amyotrophic lateral sclerosis (ALS).

Why this matters

  • The PMR occurs more frequently in people with ALS; the potential association between the PMR and corticobulbar dysfunction suggests that PMR might signal cognitive decline.