Behavior and ERP data of geometric shapes and social role priming effects based on the global-local paradigm

EEG data are recorded using the EEG system produced by the American EGI company, utilizing a 64-channel electrode cap extended from the international 10-20 system. The Cz electrode site serves as the online reference electrode, with a sampling rate of 1000Hz, and all electrode impedances are maintained below 50kΩ. This experiment used real-time recording of continuous EEG data, which was subsequently analyzed offline by the EEGlab toolbox based on Matlab R2019a software (Delorme & Makeig, 2004) .EEG data were analyzed using EEGlab with binaural mastoid as a re-reference, and offline processing was performed using 0.1-30 Hz bandpass filtering. Artifacts such as electro-oculogram, electro-myography, and drift were removed using independent component analysis, and trials with amplitudes exceeding a threshold of ±100 μV were automatically rejected. Data segmentation is conducted over a period spanning 200 ms before stimulus presentation and 800 ms post-presentation, with baseline correction applied using the average amplitude of the 200 ms pre-stimulus period. The 800 ms following stimulus onset is utilized for the time-course analysis of ERPs. Signals from 9 electrodes (F3, Fz, F4, C3, Cz, C4, P3, Pz, P4) were taken for superimposed averaging according to a previous study (Gray et al., 2004; Montalan et al., 2008; Wang et al., 2021; Zhao Guangping et al., 2023). Finally, the EEG data are analyzed using repeated-measures Analysis of Variance (ANOVA).In the behavioral data, the "age" column is highlighted in yellow to indicate male gender.In ERP data, sort according to the order of n170, p200, n400, as well as the two conditions in the paper