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SCRalyze is a powerful software for model-based analysis of peripheral psychophysiology (e.g. skin conductance, heart rate, pupil size etc.). General linear modelling and dynamic causal modelling of these signals allows inferring neural or psychological states from such signals. Applications of this approach are described in the references.

SCRalyze includes flexible data import and display, statistical inference on the group level, and results display and export. Add-ons for new data formats, signal channels, and models can be programmed easily due to the modular structure of the code. This software is based on Matlab (version 7 and upwards) and uses concepts similar to those of SPM. 

We need your help! Please report bugs, errors and requests for new features and options at BUG REPORTS

Recent work using SCRalyze: Bach DR & Friston KJ (2012). No evidence for a negative prediction error signal in peripheral indicators of sympathetic arousal. NeuroImage, 59, 883-884. Bach DR, Weiskopf N, Dolan RJ (2011). A stable sparse fear memory trace in human amygdala. Journal of Neuroscience, 31, 9383-9389.

SCRalzye features: models: dynamic causal modelling (DCM) and simple statistics for spontaneous skin conductance fluctuations  dynamic causal modelling (DCM) for event-related (anticipatory and evoked) skin conductance responses general linear convolution modelling (GLM) of evoked skin conductance responses second-level statistics group-level analysis, simple plots, and export of summary statistics data import interface supporting Spike, Biopac, VarioPort, (exported) ADInstruments LabChart, (exported) Biograph Infiniti, (exported) MindMedia BioTrace, Dataq/Windaq, Matlab, and Text format supports SCR and heart beat/heart rate data simple programming of add-ons for import and modelling of new data types and formats automatic creation of batch scripts via the GUI

VERSION B2.1.7 RELEASED on 16.05.2012: new data type support Windaq (Dataq) bugfixes VERSION B2.1.6 RELEASED on 07.12.2011: bugfixes more DCM options VERSION B2.1.5 RELEASED on 20.07.2011: bugfixes VERSION B2.1.4 RELEASED on 25.02.2011: bugfix for users of state flow toolbox new data type support MindMedia BioTrace+ VERSION B2.1.3 RELEASED on 10.11.2010: urgent bugfixes VERSION B2.1.2 RELEASED on 29.10.2010: bugfixes new data type support Vario Port Biograph Infiniti VERSION B2.1 RELEASED on 09.08.2010, featuring: new models: dynamic causal modelling (DCM) for anticipatory skin conductance responses new data type support Biopac AcqKnowledge  ADInstruments LabChart  heart rate, heart beat

We like to spend our time on developing funky methods, not programming funky websites. (We'd  still like to have one though.)

SCRalyze is provided under the GNU General Public License
(c) Dominik R. Bach, Wellcome Trust Centre for Neuroimaging, UCL London