What does "stimulus to child care" mean?
What does "stimulus to child care" mean?

"Researchers have discovered that oxytocin is not simply a stimulus to child care but a key enabler of the human ability to read faces and infer the emotions of others."

Question

What does "stimulus to child care" mean?
What does "stimulus to child care" mean?

"Researchers have discovered that oxytocin is not simply a stimulus to child care but a key enabler of the human ability to read faces and infer the emotions of others."

Answer

The word 'stimulus' can be used in three contexts being: physiology; psychology; or economy. In the context of your sentence 'stimulus to childcare' is referring to the physiological influence or effect of oxytocin on parents' enteraction with their newborn child.
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