The study also gave the children questionnaires and motivation tasks, and found this kind of stress can affect motivation.

BBC: Traffic noise 'could harm children'

My co-researchers and I in our IBM Institute for Business Value study, Collective Intelligence: Capitalizing on the Crowd, we have pointed to intrinsic motivation as well as a strong factor to drive not just individual work but collective crowdsourcing.

FORBES: Does Your Job Keep You Up in the Daytime?