Extended Data Fig. 2: Overview of the ambulatory walking task.
a, Motion artifacts from four example Neuro-stack recording channels from an example participant during walking behavior when referencing is done using a separate (black, channels 1-2) or the same (grey, channels 3-4) micro-wire bundle. Single-unit activity (example spikes in raw and filtered data shown to the right) that can be extracted using waveform shape and temporal differences as compared to the motion artifact. b, Shown is a top-down view of the hospital room layout in which an example participant completed the walking task, during which they were asked to walk back and forth between points X and Y repeatedly. Points X and Y were placed within a small area of the hospital room (~25 ft2). c, Example screenshots from the world-view camera as an example participant approached point Y from X (gray arrow shown in b that was captured via an eye-tracking headset. d, Same as c but a screenshot when the LED pulse that is used for synchronization (sync LED) was turned on versus off (c).
