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Updated: May 28, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale

Published on: August 25, 2014

The Babinski sign.

Jasper M Morrow¹, Mary M Reilly

¹MRC Centre for Neuromuscular Diseases, Department of Molecular Neuroscience, UCL Institute of Neurology, London. j.morrow@ucl.ac.uk

British Journal of Hospital Medicine (London, England : 2005)

|November 2, 2011

Summary

This summary is machine-generated.

The Babinski sign, described in 1896, involves big toe extension when the sole of the foot is stimulated. This neurological reflex is also known as the extensor plantar response.

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Area of Science:

Neurology
Neuroscience

Background:

Joseph Babinski, a French neurologist, first described a specific foot reflex in 1896.
This reflex involves the extension of the big toe upon stimulation of the plantar surface of the foot.

Purpose of the Study:

To document the initial description of the extensor plantar response by Joseph Babinski.
To provide historical context for the neurological sign now known as the Babinski sign.

Main Methods:

Historical review of neurological literature.
Analysis of the original description published by Babinski in 1896.

Main Results:

The sign was initially termed 'phénomène des orteils' (toes phenomenon) by Babinski.
The phenomenon is characterized by the extensor plantar response, specifically the upgoing big toe.

Conclusions:

The Babinski sign remains a significant clinical neurological finding.
It is commonly referred to by its eponym or as the extensor plantar response.