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Mixed Signals: Preprocessing Psychophysiological Data in Brain Vision Analyzer

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Mixed Signals: Preprocessing Psychophysiological Data in Brain Vision Analyzer is a psychophysiology manual for experimental psychologists. Originally compiled by Paul Pfaff at the Experimental Psychopathology and Clinical Psychology lab at Utrecht University, the updated edition of the manual was printed in 2025.

The manual covers the preprocessing of a wide range of psychophysiological data types common in experimental psychology. Specific sections are dedicated to skin conductance response, facial electromyography (EMG), startle EMG, smiling/frowning EMG, and postural sway. Preprocessing steps outlined include baseline correction, filtering, artifact rejection, and signal standardization. Recommendations are provided based on reviews of the latest literature in the field.[1][2][3][4][5][6][7]

The publication is part of ongoing open science initiatives in psychology to standardize research procedures in the aftermath of the replication crisis[8] and has received positive reviews.[9][10]

Further reading

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References

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  1. ↑ Kuhn, Manuel; Gerlicher, Anna M. V.; Lonsdorf, Tina B. (2022). "Navigating the manyverse of skin conductance response quantification approaches – A direct comparison of trough-to-peak, baseline correction, and model-based approaches in Ledalab and PsPM". Psychophysiology. 59 (9) e14058. doi:10.1111/psyp.14058. hdl:11245.1/66107853-a02b-48b0-8ec1-de75a9e5faa3. ISSN 1469-8986. PMID 35365863.
  2. ↑ Bach, Dominik R.; Melinscak, Filip (2020-04-01). "Psychophysiological modelling and the measurement of fear conditioning". Behaviour Research and Therapy. 127 103576. doi:10.1016/j.brat.2020.103576. ISSN 0005-7967. PMC 7078750. PMID 32087391.
  3. ↑ Rutkowska, J. M.; Ghilardi, T.; Vacaru, S. V.; van Schaik, J. E.; Meyer, M.; Hunnius, S.; Oostenveld, R. (2024-10-01). "Optimal processing of surface facial EMG to identify emotional expressions: A data-driven approach". Behavior Research Methods. 56 (7): 7331–7344. doi:10.3758/s13428-024-02421-4. ISSN 1554-3528. PMC 11362446. PMID 38773029.
  4. ↑ Lelard, Thierry; Stins, John; Mouras, Harold (2019-04-01). "Postural responses to emotional visual stimuli". Neurophysiologie Clinique. Neurophysiology of Movement: From preparation to action. 49 (2): 109–114. doi:10.1016/j.neucli.2019.01.005. hdl:1871.1/55411616-4fcb-4ecf-b16e-232e5c306a8b. ISSN 0987-7053. PMID 30711434.
  5. ↑ Miller, Jeff (November 2023). "Outlier exclusion procedures for reaction time analysis: The cures are generally worse than the disease". Journal of Experimental Psychology: General. 152 (11): 3189–3217. doi:10.1037/xge0001450. ISSN 1939-2222. PMID 37498697.
  6. ↑ Karch, Julian D. (June 2023). "Outliers may not be automatically removed". Journal of Experimental Psychology: General. 152 (6): 1735–1753. doi:10.1037/xge0001357. hdl:1887/4103722. ISSN 1939-2222. PMID 37104797.
  7. ↑ André, Quentin (January 2022). "Outlier exclusion procedures must be blind to the researcher's hypothesis". Journal of Experimental Psychology: General. 151 (1): 213–223. doi:10.1037/xge0001069. ISSN 1939-2222. PMID 34060886.
  8. ↑ Korbmacher, Max; Azevedo, Flavio; Pennington, Charlotte R.; Hartmann, Helena; Pownall, Madeleine; Schmidt, Kathleen; Elsherif, Mahmoud; Breznau, Nate; Robertson, Olly; Kalandadze, Tamara; Yu, Shijun; Baker, Bradley J.; O'Mahony, Aoife; Olsnes, Jørgen Ø-S.; Shaw, John J. (2023-07-25). "The replication crisis has led to positive structural, procedural, and community changes". Communications Psychology. 1 (1): 3. doi:10.1038/s44271-023-00003-2. ISSN 2731-9121. PMC 11290608. PMID 39242883.
  9. ↑ Experimentele Psychophysiologie.
  10. ↑ spiegeloog_388_tabula_rasa_scan_page-0001, retrieved 2025-08-22
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