Many animals, including humans, can control the firing of certain neurons with conditioning, and researchers now show that this can lead to enhanced attention. Robert Schafer and Tirin Moore at Stanford University in California trained two monkeys to increase and decrease the firing of neurons in an area of the brain known to be involved in eye movement, the frontal eye field. They then measured the activity at 94 sites in this region while the monkeys performed a visual search task.
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