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. Author manuscript; available in PMC: 2019 Jan 3.
Published in final edited form as: Neuron. 2017 Dec 14;97(1):209–220.e3. doi: 10.1016/j.neuron.2017.11.029

Figure 2. Examples of individual neurons that carry recognition-memory related signals.

Figure 2

(A-C) Raster (top) and PSTH (bottom) of three example neurons. Inset shows the average waveform of the neuron. Stimulus onset is at t=0. Colors indicate the stimulus type (old or new) and the confidence indicated by the subject (high or low). Only trials where the subject provided the correct answer (regardless of confidence) are shown. (A-B) Are MS cells of Type 1 (new>old) and Type 2 (old>new), respectively. Note the increase in firing rate for one but not the other trial type (new and old, respectively). (C) Is a confidence coding cell (Type 1, high>low). (D) Average response in a 2s window following stimulus onset for the neurons shown in A-C.