Foundational head-fixed wheel implementation for mouse visual contrast psychophysics. It covers both forced two-alternative wheel choices and the two-alternative unforced/no-go extension that later underlies Steinmetz-style contrast decision datasets. No dedicated public trial-level archive was identified for the methods-paper figures; the normal-priority request tracker is data_request.burgess-2017-visual-psychophysics-source-data, but later public Steinmetz, Zatka-Haas, and IBL releases are likely the first adapter targets.
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