Examples of the methods used to elicit the palmomental reflex
| Author and reference | Method | Definition of a positive response |
|---|---|---|
| Little and Masotti5 | Firmly scratching thenar eminence with an applicator stick | Contraction of mentalis muscle on two or more occasions |
| Jacobs and Gossman6 | Briskly stroking along the thenar eminence with a key | Contraction of ipsilateral mentalis muscle |
| Marti-Vilalta and Graus7 | Stroking the thenar eminence with the nail of the index finger by two examiners on different occasions | Weak or strong contraction of the mentalis muscle |
| Otomo8 | Stroking the thenar eminence with a key | Five successive contractions of the mentalis muscle |