The Intricate Web of Asymmetric Processing of Social Stimuli in Humans

Although the population-level preference for use of right hand is clearest example behavioral lateralization, it represents only best-known instance a variety functional asymmetries observable in humans. What interesting that many such emerge during processing social stimuli, as often occurs case human bodies, faces and voices. In present paper, after reviewing previous literature about emotional we suggest some possible links among them stress necessity comprehensive account (in both ontogenetic phylogenetic terms) these not yet fully explained phenomena. particular, propose advantages lateralization emotion should be considered light suggestions (i) hemispheric specialization enhances cognitive capacity efficiency, (ii) alignment (at population level) direction emerges, under pressures, an evolutionary stable strategy.