Science Advances

Supplementary Materials

The PDF file includes:

  • Fig. S1. Metrics for spike sorting for the identification of putative neuronal units.
  • Fig. S2. Examples of maintenance neurons.
  • Fig. S3. Details of the dimensionality reduction technique (dPCA) used for state space analysis.
  • Fig. S4. Frontal scalp EEG and PLV in subject 1.
  • Fig. S5. Scalp EEG power spectra for all subjects.
  • Fig. S6. Details of the spike-field coherence comparison between maintenance and encoding.
  • Table S1. Subject characteristics.
  • Table S2. Statistics reporting checklist.

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Other Supplementary Material for this manuscript includes the following:

  • Movie S1 (.avi format). Attractor dynamics in neuronal dPCA state space throughout the task. Mean trajectories in the neuronal state space constituted by the three largest demixed principal components (dPCs) during fixation (starting at the origin), encoding, maintenance and retrieval. Set sizes are color-coded (4, blue; 6, green; 8, red) (see also Fig. 4 and fig. S3). The response triggered time is indicated on the upper right corner. The speed during maintenance was slowest.

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