PsPM-TC dataset
================

Repository Version: 2018.08.28

This dataset includes skin conductance response (SCR), electrocardiogram (ECG) and respiration measurements. Also included are CS and US information, keypress responses and keypress response times from 19 healthy unmedicated participants (9 males and 10 females aged 23.79+/-2.49 years) participating in a classical (Pavlovian) discriminant trace fear conditioning task. CS were a red and a blue rectangle presented for 3 seconds. US consisted of 0.5 s square electric pulses with 0.2 ms duration and 10 Hz frequency. SOA between the CS onset and US was 4 s. The ITI was randomly determined on each trial to be 7, 9, or 11 s.

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

--------------------------------------------------------------------------------
Dataset is described and used in following references:
- Giuseppe Castegnetti & Athina Tzovara & Matthias Staib & Philipp C. Paulus & Nicolas Hofer & Dominik R. Bach (2016) Modeling fear-conditioned bradycardia in humans. Psychophysiology, 53:6, pp 930-939. DOI:10.1111/psyp.12637
- Giuseppe Castegnetti & Athina Tzovara & Matthias Staib & Samuel Gerster & Dominik R. Bach (2017) Assessing fear learning via conditioned respiratory amplitude responses. Psychophysiology, 54:2, pp 215-223. DOI:10.1111/psyp.12778
- Athina Tzovara & Christoph W. Korn & Dominik R. Bach (2018) Human Pavlovian fear conditioning conforms to probabilistic learning. PLoS Computational Biology. 

--------------------------------------------------------------------------------
File Structure:
-README.txt               // This document
-CHANGES.txt              // Changes between dataset versions
-excludes.txt             // Information on excluded subjects
-+Data                    // Folder Containing all data files
|-TC_wdq_XX_snY.mat       // 19 files holding measurements for SCR, ECG and respiration
|-TC_cogent_XX.mat        // 19 files holding keyboard presses and CS/US information
|-...

-------------------------------------------------------------------------------
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, markers are set at CS presentation onset (channel 4)
- Files holding keyboard presses and CS/US information, recorded with Cogent 2000 software.

The data file name is composed of:
- TC           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 9.2 (R2017a) format.