Stone age tools required greater brain power claims study

I'm filing this story in my 'dodgy dossier' drawer along with aromatherapy-crystal-dowsing and Alastair Campbell's Iraq-WMD file, but I report it here in the interests of completeness.

Stone Age humans were only able to develop relatively advanced tools after their brains evolved a greater capacity for complex thought, according to a new study that investigates why it took early humans almost two million years to move from razor-sharp stones to a hand-held stone axe. Researchers used computer modelling and tiny sensors embedded in gloves to assess the complex hand skills that early humans needed in order to make two types of tools during the Lower Palaeolithic period, which began around 2.5 million years ago. The cross-disciplinary team, involving researchers from Imperial College London, employed a craftsperson called a flintnapper to faithfully replicate ancient tool-making techniques.

Read the full story here:-
http://machineslikeus.com/news/stone-age-humans-needed-more-brain-power-make-big-leap-tool-design