I am a Research Analyst working with Todd Braver and colleagues in the Department of Psychology. I completed a PhD in Bioinformatics and Computational Biology at Iowa State University under the supervision of Julie Dickerson and Ralph Adolphs, then worked as a postdoc under Christian Keysers at the Social Brain Lab, University Medical Center Groningen (The Netherlands). My research interests are focused on methodology, particularly multivariate analyses of fMRI data, but also nonparametric statistics and psychophysiological measures. I blog about fMRI analysis at MVPA Meanderings


Cognitive Control & Psychopathology Laboratory
Washington University
Department of Psychological & Brain Sciences
Campus Box 1125
One Brookings Drive
St. Louis, Missouri 63130-4899
(314) 935-8
Email Jo

Etzel, J.A, 2015. MVPA Permutation Schemes: Permutation Testing for the Group Level. 5th International Workshop on Pattern Recognition in NeuroImaging. IEEE, Stanford, CA, USA. [.pdf file]
Etzel, J.A., Cole, M.W., Zacks, J.M., Kay, Kendrick N., Braver, T.S. Reward motivation enhances task coding in frontoparietal cortex. Cerebral Cortex. [.pdf file]
Etzel, J.A., Braver, T.S., 2014. High Dimensional Exploration: A Comparison of PCA, Distance Concentration, and Classification Performance in two fMRI Datasets. 5th IEEE Symposium on Computational Intelligence and Data Mining (CIDM 2014).
Etzel, J.A., Zacks, J.M., Braver, T.S., 2013. Searchlight analysis: promise, pitfalls, and potential. NeuroImage 78, 261-269. [.pdf file]
Etzel JA, Braver TS. MVPA Permutation Schemes: Permutation Testing in the Land of Cross-Validation. 3rd Intl. Workshop on Pattern Recognition in Neuroimaging. 2013.IEEE, Philadelphia, PA.[.pdf file]
Gazzola, V., Spezio, M.L., Etzel, J.A., Castelli, F., Adolphs, R., Keysers, C., 2012. Primary somatosensory cortex discriminates affective significance in social touch. Proceedings of the National Academy of Sciences.
Etzel, J.A., Cole, M.W., Braver, T.S., 2012. Looking Outside The Searchlight. Lecture Notes in Artificial Intelligence LNAI 7263 Surveys of the State of the Art Machine Learning and Interpretation in Neuroimaging MLINI 2011, 29-37.
Cole M.W., Etzel J.A., Zacks J.M., Schneider W., Braver T.S. "Rapid transfer of abstract rules to novel contexts in human lateral prefrontal cortex." (2011) Frontiers in Human Neuroscience. 2011;5:142.
Quadflieg, S., Etzel, J. A., Gazzola, V., Keysers, C., Schubert, T. W., Waiter, G. D., Macrae, C. N. "Puddles, Parties and Professors: Linking Word Categorization to Neural Patterns of Visuospatial Coding." Journal of Cognitive Neuroscience. (2011) 23 (10): 2636-2649
Etzel, J. A., Valchev, N., Keysers, C. (2011) "The Impact of Certain Methodological Choices on Multivariate Analysis of fMRI Data with Support Vector Machines." NeuroImage. 54 (2): 1159-1167.
Etzel, J. A., Gazzola, V., Keysers, C. (2009) “An Introduction to Anatomical ROI-based fMRI Classification Analysis.” Brain Research, 1282: 114-125.
Etzel, J. A., Gazzola, V., Keysers, C. (2008). "Testing Simulation Theory with Cross-Modal Multivariate Classification of fMRI Data." PLoS One 3(11): e3690.
Etzel, J. A., Johnsen, E. L., Dickerson, J. A., Tranel, D., Adolphs, R. (2006) “Cardiovascular and Respiratory Responses during Musical Mood Induction,” International Journal of Psychophysiology, 61(1): 57-69.
Buchanan, T. W., Etzel, J. A., Adolphs, R., Tranel, D. (2006) “The influence of autonomic arousal and semantic relatedness on memory for emotional words,” International Journal of Psychophysiology, 61(1): 26-33.