- Thursday, February 4th 2021 at 16:00 - 17:00 UK (Other timezones)
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fMRI data analysis consists of many steps with multiple possible choices in each of these steps. While simulations had shown that different analytical choices may lead to different results, whether or not this high analytical flexibility affects fMRI findings in practice, and to what extent, remained an open question. In this talk, I will describe the Neuroimaging Analysis Replication and Prediction Study (NARPS; https://www.narps.info/), in which almost 200 neuroscientists and economists from around the world collaborated to answer this question. Seventy analysis teams tested the same pre-defined hypotheses with the same fMRI dataset, and the variability of their findings was examined. I will further discuss the implications of our findings and potential solutions.
Dr. Rotem Botvinik-Nezer
Postdoctoral researcher
Department of Psychological and Brain Sciences
Dartmouth College, NH, USA