Edinger–Westphal nucleus

a collection of small nerve cells in the midbrain. It is part of the parasympathetic nervous system pathway to the ciliary muscle and the pupillary sphincter of the eye, which play a role in visual accommodation. [Ludwig Edinger (1855–1918), German neuroanatomist; Karl Friedrich Otto Westphal (1833–1890), German neurologist]

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Psychology term of the day

November 22nd 2024

upper threshold

the maximum intensity of a stimulus that can be perceived without pain.