Androgenetic chimeras have smaller brains than gynogenetic or parthenogenetic chimeras relative to body size (Goos LM
et al, 2006). Paternally- and maternally-derived cells are found in distinct locations in the brain of these chimeras (Keverne
EB et al, 1996). Goos LM et al, 2006 examined whether this apparent
neural imprinting pattern could be observed in phenotypically normal individuals using tests of cognitive function, as the cerebal
cortex showed a maternal pattern in the gynogenetic and parthenogenetic chimeras. The cortical function scores of male and
female offspring showed a stronger Pearson correlation score with the maternal score, supporting the hypothesis. Further studies
are required to substantiate these findings.