: either of two prominences of the midbrain concerned with vision
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Locust brains are quite simple: on each side of the head is an optic lobe taking in information from the eyes and performing basic processing, and these lobes feed into the central midbrain, which carries out higher-level processing.—Andrew Moseman, Discover Magazine, 26 May 2010 According to Science Alert, sleeping octopuses do this because neurons firing in their optic lobes cause their pigment-containing cells to become active.—Fox News, 28 Sep. 2019
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