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Human eye-gaze is a powerful stimulus, drawing the observer’s attention to places and objects of interest to someone else (‘eye-gaze following’). The largely homogeneous eyes of monkeys, compromising the assessment of eyegaze by conspecifics from larger distances, explain the absence of comparable eye-gaze following in these animals. Yet, monkeys a...
Despite the ecological importance of gaze following, little is known about the underlying neuronal processes, which allow us to extract gaze direction from the geometric features of the eye and head of a conspecific. In order to understand the neuronal mechanisms underlying this ability, a careful description of the capacity and the limitations of...
Distinguishing a target from distractors during visual search is crucial for goal-directed behaviour. The more distractors that are presented with the target, the larger is the subject's error rate. This observation defines the set-size effect in visual search. Neurons in areas related to attention and eye movements, like the lateral intraparietal...