New paper exploring the relationship between alterations in typical cortical asymmetries and functional #lateralization in #ASD in evolutionary terms https://www.mdpi.com/2073-8994/14/12/2689
Taking Sides: Asymmetries in the Evolution of Human Brain Development in Better Understanding Autism Spectrum Disorder

Confirmation from structural, functional, and behavioral studies agree and suggest a configuration of atypical lateralization in individuals with autistic spectrum disorders (ASD). It is suggested that patterns of cortical and behavioral atypicality are evident in individuals with ASDs with atypical lateralization being common in individuals with ASDs. The paper endeavors to better understand the relationship between alterations in typical cortical asymmetries and functional lateralization in ASD in evolutionary terms. We have proposed that both early genetic and/or environmental influences can alter the developmental process of cortical lateralization. There invariably is a “chicken or egg” issue that arises whether atypical cortical anatomy associated with abnormal function, or alternatively whether functional atypicality generates abnormal structure.

MDPI

The #evolution and biological correlates of #hand #preferences in #anthropoid #primates

#OpenAccess
#Handedness
#Laterality

"Human right-handedness represents an unparalleled extreme among anthropoids and taxa displaying population-level handedness are rare. Species-level direction of manual #lateralization was largely uniform among non-human primates and did not strongly correlate with any of the selected biological predictors, nor with #phylogeny"

https://elifesciences.org/articles/77875

The evolution and biological correlates of hand preferences in anthropoid primates

Primate hand preference strength but not direction (left vs. right) generally reflects phylogeny and ecology at species level, but human handedness deviates markedly from all other species.

eLife