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. Author manuscript; available in PMC: 2016 Jun 7.
Published in final edited form as: Science. 2015 May 22;348(6237):906–910. doi: 10.1126/science.aaa5417

Fig. 1. Goal and trajectory coding in the PPC.

Fig. 1

(A) The masked memory reach task was used to quantify goal and trajectory tuning in the PPC by dissociating their respective tuning in time. EGS imagined a continuous reaching movement to spatially cued targets after a delay period. Motion of the cursor was occluded from view by using a mask in interleaved trials. (B) Goal and trajectory fitting. Average neural response (±SE) of a sample neuron over the duration of a trial, along with a linear model reconstruction of the time course. The linear model included components for the transient early visual response, sustained goal tuning, and transient trajectory tuning. The significance of the fit coefficients was used to determine population tuning to goal and trajectory (see Fig. 2).