PsPM-trSP3 dataset =================== Repository Version: 2020.01.29 This dataset includes skin conductance response (SCR) measurements for each of 40 healthy unmedicated participants (20 males and 20 females aged 21.9 +/- 3.8 years) in response to the 16 most arousing negative, and most arousing positive (excluding explicit nude) and 16 least arousing neutral IAPS pictures, presented for 1 s each in 1 block, while listening to regular or random distractor sounds, as described in Bach et al. (2015). ITI was 4 s, plus a variable delay of around 0.4 s for image loading. -------------------------------------------------------------------------------- This repository is curated by the PsPM team, bachlab.org/pspm -------------------------------------------------------------------------------- Dataset is described and used in following references: - Dominik R. Bach & Karl J. Friston & Raymond J. Dolan (2013) An improved algorithm for model-based analysis of evoked skin conductance responses. Biological Psychology, 94:3, pp 490-497. DOI:10.1016/j.biopsycho.2013.09.010 - Dominik R. Bach (2014) A head-to-head comparison of SCRalyze and Ledalab, two model-based methods for skin conductance analysis. Biological Psychology, 103, pp 63-68. DOI:10.1016/j.biopsycho.2014.08.006 - Dominik R. Bach & Erich Seifritz & Raymond J. Dolan (2015) Temporally Unpredictable Sounds Exert a Context-Dependent Influence on Evaluation of Unrelated Images. PloS one, 10:26098105, pp e0131065. DOI:10.1371/journal.pone.0131065 -------------------------------------------------------------------------------- File Structure: - README.txt // This document - excludes.txt // List of excluded subjects for specific publications - Data // Folder Containing all data files - trSP3_spike_XX_snY.mat // 40 files holding measurements for SCR - trSP3_cogent_XX.mat // 40 files holding key presses, IAPS information, and demographics ------------------------------------------------------------------------------- Data Files: - Files holding SCR, heart beat, and time markers, recorded with spike software. - Skin conductance (channel 1) - Event markers used for synchronization with Cogent files, markers are set at cs presentation onset (channel 2) - Files holding keyboard presses, and IAPS information, recorded with Cogent 2000 software. Also contains demographic (age, sex) The data file name is composed of: - trSP3 The dataset name - spike/cogent The type of data recorded (see above) - XX The subject number - Y The session number" Data are stored as .mat files for use with MATLAB (The MathWorks Inc., Natick, USA) in a format readable by the PsPM toolbox (bachlab.org/pspm). All Matlab files are saved in MATLAB 9.7 (R2019b) format.