🧠ap psychology review

Babinski Reflex

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

The Babinski reflex is a physical response where a baby's big toe moves upward or toward the top surface of the foot and the other toes fan out when the sole of the foot is firmly stroked.

AP course connection

Topic 6.1: 6.1 The Lifespan and Physical Development in Childhood

Unit 6

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