Large spindle-shaped neurons {spindle neuron} {Korkzieher cell} are only in great-ape anterior-cingulate and frontal-area-FI lower layer 5, for output to other regions [Economo and Koskinas, 1925] [Nimchinsky et al., 1999]. Humans have them in much higher densities than other apes. They form after birth. Spindle neurons are for attention and self-reflection. Layer 6 has small spindle-like cells.
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Date Modified: 2022.0224