PsPM-RRM3 dataset
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Repository Version: 2019.03.11

This dataset includes skin conductance response (SCR), electrocardiogram (ECG) and respiration measurements for each of 20 healthy unmedicated participants (10 males and 10 females aged 25.3 +/- 5.1 years; male/female numbers were misprinted in Bach et al. 2016) in response to negatively and positively arousing IAPS pictures, as well as neutral (65 dB) and aversive (85 dB) white noise sounds. All stimuli had 1 s duration. ITI was selected randomly on each trial from 40 s, 45 s or 50 s.

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This repository is curated by the PsPM team, pspm.sourceforge.net

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Dataset is described and used in following references:
- Dominik R. Bach & Samuel Gerster & Athina Tzovara & Giuseppe Castegnetti (2016) A linear model for event-related respiration responses. Journal of Neuroscience Methods, 270, pp 147-155. DOI:10.1016/j.jneumeth.2016.06.001

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File Structure:
-README.txt               // This document
-+Data                    // Folder Containing all data files
|-RRM3_wdq_XX_snY.mat     // 20 files holding measurements for SCR, ECG, and respiration
|-RRM3_cogent_XX.mat      // 20 files holding key presses, stimulus information, demographics, and room temperature/humidity

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Data Files:
- Files holding SCR, ECG, respiration traces and time markers, recorded with WDQ software.
  - Skin conductance (channel 1)
  - Electrocardiogram (channel 2)
  - Respiration (channel 3)
  - Event markers used for synchronization with Cogent files (channel 4)
- Files holding keyboard presses and CS/US/IAPS information, recorded with Cogent 2000 software. Also contains demographic (age, sex), room temperature/humidity

The data file name is composed of:
- RRM3         The dataset name
- wdq/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 (pspm.sourceforge.net). All Matlab files are saved in MATLAB 9.4 (R2018a) format.