inhibiting saccades to a social stimulus: a developmental study f. Geringswald, A. Afyouni, c. noblet & M.-H. Grosbras * faces are an important source of social signal throughout the lifespan. in adults, they have a prioritized access to the orienting system. Here we investigate when this effect emerges during development. We tested 139 children, early adolescents, adolescents and adults in a mixed pro-and anti-saccades task with faces, cars or noise patterns as visual targets. We observed an improvement in performance until about 15 years of age, replicating studies that used only meaningless stimuli as targets. Also, as previously reported, we observed that adults made more direction errors to faces than abstract patterns and cars. The children showed this effect too with regards to noise patterns but it was not specific since performance for cars and faces did not differ. The adolescents, in contrast, made more errors for faces than for cars but as many errors for noise patterns and faces. in all groups latencies for pro-saccades were faster towards faces. We discuss these findings with regards to the development of executive control in childhood and adolescence and the influence of social stimuli at different ages. Faces are amongst the most salient visual stimuli that we encounter daily. They convey information paramount for social interactions, such as identity, internal state and intentions. A large corpus of research has demonstrated that faces are processed by specifically tuned mechanisms in the primates' visual system 1-4. In addition, faces attract and retain attention faster and more strongly than other objects: independently of low-level visual saliency, even in complex scenes, we look at faces preferentially and more quickly than other objects 5-7 or animal faces 6,8,9. We can detect faces more efficiently 10-12 , while is it difficult to ignore them, even if this is detrimental to the task 5,13-15. When this prioritized processing emerges in ontogeny and how it develops is unclear. We know that from very early on infants like to look at faces and spend a considerable amount of time doing so 16-19. The dominant theories propose that this precocious bias for face-like stimuli, coupled with the intrinsic incentive values of faces, would shape the visual and the orienting systems towards becoming increasingly attuned to faces 20. In accordance, like adults, children and adolescents tend to fixate more faces than other objects when looking at complex visual scenes 21-23. Yet we also know that many aspects of face processing, such as identity or facial expression recognition, are not fully mature in terms of accuracy and speed, until at least mid-adolescence 24-28 , and that the specialization of brain circuits for faces emerges gradually 29-35. Some of these findings also suggest a non-linear development with a plateau 36 , or even a dip 37 in performance at the beginning of adolescence, followed by later additional improvement. This has been interpreted as a consequence of a re-organisation of the fac...