Dissociated functional significance of decision-related activity in the primate dorsal stream

Activity in regions of the brain have been correlated with decision making but determining whether such relationships are correlative or causative has been challenging; using a technique to reversibly inactivate brain areas in monkeys reveals that although there is decision-related activity in the lateral intraparietal (LIP) area, LIP is not critical for the perceptual decisions studied here. Activity in 'area LIP', the lateral intraparietal...