PsPM-HRM1-2 dataset
====================

Repository Version: 2020.05.20

This dataset includes skin conductance response (SCR) and electrocardiogram (ECG) for each of 61 healthy unmedicated participants (28 males, 32 females, 1 unassigned, aged 25.8 +/- 4.6 years) in response to 20 broadband white noise sounds (HRM1) or 10 oddball tones in a oddball task (HRM2). Some participants did not did not complete HRM1 or HRM2 or were excluded from analysis such that there are 56 recordings for HRM1 and 58 recordings for HRM2. White noise sounds in HRM1 were 1 s long with 10 ms on- and offset ramp and presented at ~85 dB. Oddball and standard sounds in HRM2 were 50 ms long, with 10 ms on- and offset ramp, and presented at ~75 dB. Sound frequency was 440 Hz or 460 Hz, randomly balanced per participant to oddballs and standards. SOA between white noise sounds and oddball tones was selected randomly on each trial from 30 s, 35 s or 40 s. All stimuli were presented in one block. There is a marker for each sound onset (including standard tones) in the windaq files.

--------------------------------------------------------------------------------
This repository is curated by the PsPM team, bachlab.org/pspm

--------------------------------------------------------------------------------
Dataset is described and used in following references:
- Philipp C. Paulus & Giuseppe Castegnetti & Dominik R. Bach (2016) Modeling event-related heart period responses. Psychophysiology, 53:6, pp 837-846. DOI:10.1111/psyp.12622

--------------------------------------------------------------------------------
File Structure:
-README.txt               // This document
-+Data                    // Folder Containing all data files
|-HRM1-2_wdq_XX_snY.mat   // 114 files holding measurements for SCR, ECG, and respiration
|-HRM1-2_cogent_XX.mat    // 114 files holding key presses, and demographics

-------------------------------------------------------------------------------
Data Files:
- Files holding SCR and ECG, recorded with WDQ software.
  - Skin conductance (channel 1)
  - ECG (channel 2)
   - Event markers used for synchronization with Cogent files, markers are set at sound presentation onset (channel 3)
- Files holding keyboard presses, recorded with Cogent 2000 software. Also contains demographic (age, sex) and acquisition information (room temperature and humidity)

The data file name is composed of:
- HRM1-2       The dataset name
- wdq/cogent   The type of data recorded (see above)
- XX           The subject number
- Y            The session number (HRM1, resp. HRM2)

All Matlab files are saved in MATLAB 9.7 (R2019b) format. (The MathWorks Inc., Natick, USA) in a format readable by the PsPM toolbox (bachlab.org/pspm).