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1 (in neuroanatomy) The arrangement in which a single neuron receives inputs from numerous receptors or other neurons. For instance, in the retina of the eye, the output of over 100 million photoreceptors converge, via intermediate cells, on just 1 million ganglion cells, whose axons comprise the optic nerve. Consequently, convergence entails a funnelling of information from the input cells and integration of their signals into new output messages.

2 See convergent evolution. Compare divergence.

Subjects: Medicine and Health — Biological Sciences.

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