Technical Comments

Response to Comment on “Single-trial spike trains in parietal cortex reveal discrete steps during decision-making”

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Science  25 Mar 2016:
Vol. 351, Issue 6280, pp. 1406
DOI: 10.1126/science.aad3596

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Shadlen et al.’s Comment focuses on extrapolations of our results that were not implied or asserted in our Report. They discuss alternate analyses of average firing rates in other tasks, the relationship between neural activity and behavior, and possible extensions of the standard models we examined. Although interesting to contemplate, these points are not germane to the findings of our Report: that stepping dynamics provided a better statistical description of lateral intraparietal area spike trains than diffusion-to-bound dynamics for a majority of neurons.

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