**Title**: "Understanding the Self across cognitive domains" **Authors and affiliations**: Letizia Amodeo (1,3), Roeljan Wiersema (1,3), Marcel Brass (2,3), Annabel Nijhof (1,3) (1) Department of Experimental Clinical and Health Psychology, Ghent University (2) Department of Experimental Psychology, Ghent University (3) EXPLORA, Ghent University **Abstract**: "Perceiving ourselves as unified is fundamental to psychological functioning and may influence how the surrounding environment is processed. The so-called “egocentric/self-bias” – advantaged processing for self-relevant stimuli – is believed to foster social competence. Individuals with Autism Spectrum Disorder (ASD) experience persistent social difficulties, which may relate to an atypical sense of self. However, research findings are still inconsistent: several studies suggested a reduced or absent self-bias in ASD, whereas others did not observe differences in self-processing between individuals with ASD and neurotypicals. Moreover, research is lacking in exploring self-biases across different cognitive domains: distinct self-related aspects have been studied separately so far, and self-biases magnitude has been mostly assessed within cognitive domains. Therefore, the goal of the present study is to investigate self-biases across perception, memory and attention, by comparing three well-established self-processing measures, i.e., the shape-label matching task (perceptual domain), the trait adjectives task (memory domain), and the visual search task (attentional domain), within the same experimental procedure. We intend to explore whether self-biases in the different cognitive domains are related, emerging as a result of a common, underlying mechanism, or instead consist in distinct, unrelated effects. Furthermore, associations with ASD symptomatology (10-item AQ, SRS-A) as well as self-consciousness (SCS-R) will be examined."