AP commented that China's almost glitch-free organizing showcased world-class venues and cheerful volunteers to the largest-ever peaceful influx of foreign visitors.
The results revealed the participants' estimates of aggression correlated highly with the actual aggressive behaviour of the men - even if they only saw the picture for a split second.
In a similar study, Oshin Vartanian of Toronto University asked volunteers to compare original paintings with ones which he had altered by moving objects around within the frame.
With the originals, volunteers' eyes tended to stay longer on certain places in the image, but with the altered versions they would flit across a piece more rapidly.
Meanwhile, volunteers will distribute free maps at entrances of the Expo site. The maps are also available at 56 visitors' service spots inside the site.
Hi, Professor Archer, you know how in class last week you said that you were looking for students who are interested in volunteering for your archeology project?