• Self-associated processing can separate object-based attention and space-based attention

    Subjects: Psychology >> Cognitive Psychology submitted time 2024-06-20

    Abstract: The self plays a significant role in shaping social interactions, often capturing attention due to an inherent preference for stimuli related to the self. However, the mechanisms that govern attention in this context remain not fully elucidated. Research has suggested that the self holds social salience, potentially underpinning the prioritization of self-related information in attentional processes. Yet, other studies indicate that the self may not bias attention as automatically as physiologically salient stimuli, implying that self-related cues do not influence attention at an early, pre-attentive stage. We hypothesize that the self might enhance the salience of meaning post the initial perceptual phase, rather than affecting spatial prominence at an early stage. The current study is designed to investigate how neutral stimuli linked to an individual’s self impact selective attention processing, thereby illuminating the mechanisms of self-biased attentional processes. We conducted three experiments, each enlisting 24-25 college students. Initially, participants were engaged in an associative learning task, where they associated labels for themselves (’you’), familiar others (’friend’), or strangers (’stranger’) with neutral colors (Experiments 1 and 2) or abstract symbols (Experiment 3). Subsequently, they were tasked with identifying which labels matched the given neutral stimuli. We then employed the dual-rectangle cuing paradigm to distinguish between space-based and object-based attention, with the neutral stimuli serving as the target-irrelevant dimension, allowing us to examine the influence of self-association on selective attention. In addition to behavioral responses, we utilized the Hierarchical Drift Diffusion Model (HDDM) to dissect the decision-making process. Experiment 1 revealed that processing associated with the self primarily affects object-based selective attention. The object-based effect—calculated by the difference between the same and different object conditions—was diminished or absent when targets contained self- or friend-associated stimuli, compared to those with stranger-associated stimuli. However, the space-based effect—determined by the difference between valid and invalid cueing conditions—did not significantly vary among the three social identities. Experiment 2 replicated this finding, even when the associative learning context was different from the cueing task, thereby ruling out the impact of context familiarity. Experiment 3, which used abstract symbols for identity association and colors for task stimuli in the cueing task, did not find a significant effect of self-related information on object-based attention. Further analysis indicated that the influence of self-association on object-based attention was only evident among participants with longer reaction times. These results suggest that the activation of self-representation can be essential for modulating object-based attention. Moreover, the HDDM analysis indicated that the impact of self-related information on object-based selective attention predominantly occurs during the stimulus encoding stage. In conclusion, this study demonstrates that self-associated stimuli, when task-irrelevant, regulate object-based selective attention over space-based selective attention, consistently across varying experimental contexts. This research uncovers a critical distinction between object-based and space-based attention in the realm of self-associated processing, offering new insights into the complex dynamics of attentional mechanisms related to the self. It not only deepens our understanding of the self’s influence on cognitive processes but also paves the way for future explorations in this domain.