%% shock work-up procedure The script was adequate for a multichannel stimulator (SXC-4A, Sanxia Technique Inc., China). This script is mainly used to measure the threshold of each participant before using electric shock and color or shape conditioned learning or electric shock to induce threat or anxiety. The materials have a Creative Commons CC BY license so that you can use them in any way you want. You just need to provide an attribution (“by Zhiwei Zhang,Jingqing Nian”，DOI：10.17605/OSF.IO/M3P8Q). If you have any questions, please send an email to J.Q Nian（E-mail:nianjingqing@126.com).

%% Author Information Version 1.0 made by Zhiwei Zhang[E-mail:760861993@qq.com] Version 1.1 modified by Jingqing Nian[E-mail:nianjingqing@126.com] Version 1.2 modified by Jingqing Nian[E-mail:nianjingqing@126.com] in 13th March 2023. Author Unit:School of Psychology,Guizhou Normal University

%% Version History Version 1.0 has completed the preparation of the core process and some basic functions, such as interrupting the task when the score reaches the preset value. Version 1.1 modifies the code adaptively according to the parameter setting requirements of the electric shock instrument. Version 1.2 mainly changes is the scoring method from pressing the corresponding number keys to sliding the mouse, and further simplifies and optimizes the script.