Causal relations between asymmetries at the individual level?

Rebecca G. Deason, David R. Andresen, and Chad J. Marsolek

Studies with humans have failed to produce evidence that any direct causal relation exists between the asymmetry of one function in an individual and the asymmetry of a different function in that individual. Without such evidence, factors external to an individual’s nervous system, such as social interactions, may play crucial roles in explaining the directions of all asymmetries at all levels.

Deason, R. G., Andresen, D. R., & Marsolek, C. J. (2005). Causal relations between asymmetries at the individual level? Behavioral and Brain Sciences, 28, 596-597.