Amplitude of the Nc is thought to reflect the

amount of attention directed at a visual stimulus and is related to autonomic arousal (Reynolds & Richards, 2005). These findings suggest that gaze and head orientation direct infants’ attention JAK inhibitor toward peripheral targets, thus facilitating processing of gaze-cued objects. Uncued objects, in contrast, seem to be encoded less effectively and require further processing when they are presented again, eliciting increased brain responses and visual examination. To sum up, even though infants’ overt “gaze” following is affected by the status of a person’s eyes only by the end of the first year, eye gaze serves as an attention-directing cue from birth on, influencing infants’ object

processing by 4 months of age. There is strong evidence that eye gaze shifts in the absence as well as in the presence of congruent changes in head orientation affect infants’ processing of novel objects (Hoehl, Wahl, Michel, & Striano, 2012; Reid & Striano, 2005; Reid et al., 2004; Theuring, Gredebäck, & Hauf, 2007; Wahl et al., 2012). However, do isolated head orientation cues also influence infants’ object processing? Selleck RAD001 Can this information even override incongruent gaze cues? These questions bear importance for our understanding of the early development of social attention cueing mechanisms. According to an influential model on the direction of attention through social cues, separate but interconnected neuronal populations process eye gaze, head orientation, and body orientation (Perrett & Emery, 1994; Perrett, Hietanen, Oram, & Benson, 1992). Investigating the effects of isolated eye gaze and head orientation cues will provide information on whether these cues are processed isolated from each other or in conjunction in Non-specific serine/threonine protein kinase early development and whether both are equally effective

in influencing young infants’ object processing. Thus, the aim of the current study is to disentangle the effects of eye gaze and head orientation on 4-month-olds’ processing of objects using eye tracking and ERPs. We present infants with isolated eye gaze or head orientation cues in a between-subjects design. We predict that infants will direct more visual attention and neural resources to uncued objects in the eye gaze condition when they are presented a second time, thus replicating earlier work. We tentatively predict that infants will also follow the direction of the head turn alone, which may consequently affect object processing.