What it means
A primitive reflex, also called the asymmetric tonic neck reflex or "fencing" position, because the baby looks like a fencer. It is present in the first months and fades between about 4 and 7 months of age. A reflex that is missing, very strong, or lasts much longer can point to a nervous system problem.
For the nurse
Test it with the baby lying on the back by gently turning the head to one side, and compare both sides.
At a glance
| Also written | asymmetric tonic neck reflex, fencing reflex |
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Related terms
central nervous system
The brain and the spinal cord together.
neuron
A nerve cell: a cell that carries electrical and chemical signals through the nervous system.