Top 1 Biorxiv Papers Today in Neuroscience


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#1. Decomposing Simon task BOLD activation using a drift-diffusion model framework
James R McIntosh, Paul Sajda
The Simon effect is observed in spatial conflict tasks where the response time of subjects is increased if stimuli are presented in a lateralized manner so that they are incongruous with the response information that they represent symbolically. Previous studies have used fMRI to investigate this phenomenon, and while some have been driven by considerations of an underlying model, none have attempted to directly tie model and BOLD response together. It is likely that this is due to Simon models having been predominantly descriptive of the phenomenon rather than capturing the full spectrum of behavior at the level of individual subjects. Sequential sampling models (SSM) which capture full response distributions for correct and incorrect responses have recently been extended to capture conflict tasks. In this study we use our freely available framework for fitting and comparing non-standard SSM to fit the Simon effect SSM (SE-SSM) to behavioral data. This model extension includes specific estimates of automatic response bias and...
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biorxiv_neursci: Decomposing Simon task BOLD activation using a drift-diffusion model framework https://t.co/0QFLhwYOw6 #biorxiv_neursci
biorxivpreprint: Decomposing Simon task BOLD activation using a drift-diffusion model framework https://t.co/GSlrRXn1b9 #bioRxiv
J_Duprez: RT @biorxiv_neursci: Decomposing Simon task BOLD activation using a drift-diffusion model framework https://t.co/0QFLhwYOw6 #biorxiv_neurs…
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