Figure 3 : Schematic of neocortex neuron arrangement, normal (left) versus focus of abnormal cortex in autistic brain (right).

Note the autistic brain has small foci with excess neurons, a blurring of layering, and numerous neurons still remaining within the white matter.

Seneff et al.Journal of Autism  2016 3:1DOI : 10.7243/2054-992X-3-1