09/02/2026
Every parent has felt this one: a baby gripping your finger with surprising strength. Of course all of our doctors knew it immediately.
The palmar reflex is one of the most recognizable newborn reflexes. Touch the palm and the fingers curl around the stimulus automatically. It is present from birth and begins integrating between four and six months as the brain develops voluntary control over hand movement.
What most people don't know is that the palmar reflex shares neurological pathways with the muscles of the mouth and tongue. When it doesn't fully integrate, hand movement and mouth movement stay linked in ways that cause downstream challenges. Children with a retained palmar reflex often have difficulty with pencil grip and handwriting; the hand tenses when they concentrate. They may also have articulation challenges and difficulty with fine motor tasks that require the hand to work independently of other movements.
The connection between the hand and the mouth in a retained palmar reflex also means that mouth movement during handwriting (tongue out, lips moving, etc.) is a visible sign worth noting. It is not a quirk. It is a retained reflex showing itself.
As brain-based pediatric chiropractors, a retained palmar reflex is just one of the primitive reflexes our doctors at Unity Chiropractic look for when assessing children in our Neuro Cognitive Program.
Curious? Call 503-747-3388 or DM us to learn more.