Behavioral and Brain Sciences

Open Peer Commentary

Stone tools and conceptual structure

James Steelea1

a1 Department of Archaeology, University of Southampton, Highfield, Southampton, SO9 5NH, England,


Understanding how conceptual structures inform stone tool production and use would help us resolve the issue of a pongid-hominid dichotomy in brain organisation and cognitive ability. Evidence from ideational apraxia suggests that the planning of linguistic and manipulative behaviours is not colocalized in homologous circuits. An alternative account in terms of the evolutionary expansion of the whole prefrontal-premotor area may be more plausible.