To test the theory, researchers gave 132 participants one of three tasks: using tweezers to remove small pieces from slots in the Japanese equivalent of the board game Operation, counting the appearances of a digit in a block of numbers, and a reaction time test.
He warned that other European countries would block attempts to get a cattle vaccine and the Diva test to identify vaccinated animals approved for use.
Birmingham came close to equalising when Heskey raced through to test Jaaskelainen with a cleanly-struck effort, but the Bolton keeper stood up well to make the block.