กลไกทางประสาทของขั้วอารมณ์และขนาดความกว้างของสมาธิ

This research aims to elucidate the neural mechanisms behind the "attentional scope modulation" phenomenon, where emotional valence influences the breadth of visual attention. Using Electroencephalography (EEG) in an adapted Eriksen-Flanker task, the study examines how positive and negative emotional stimuli affect spatial attention distribution. The hypothesis is that positive emotions expand attentional scope, enabling broader visual information integration, while negative emotions narrow this scope, focusing on salient stimuli. A novel aspect is employing the Inverted Encoding Model (IEM) for EEG data analysis to decode spatial attention patterns. This approach could reveal distinct neural responses to emotional stimuli, enhancing our understanding of visual attention modulation by emotions. Additionally, the research explores the impact of individual stress and anxiety levels on attentional modulation. By correlating psychological distress, measured through instruments like the STAI, with behavioral and EEG data, it aims to uncover how emotional processing in the brain varies with psychological state. Preliminary data suggests a relationship between emotional stimuli's impact on attention and individual stress levels. This study not only seeks to advance academic knowledge in cognitive neuroscience but also aims to contribute to the development of diagnostic tools for mental health conditions, potentially transforming clinical approaches to stress, anxiety, and depression.