The Journal of Neuroscience, May 23, 2007, ():
Disambiguation of Overlapping Experiences by Neurons in the Medial Entorhinal Cortex
J. Neurosci. Lipton et al.
27: 5787
Supplemental Data
Files in this Data Supplement:
- supplemental material
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Supplementary Figure 1. Spike properties of 11 putative excitatory dcMEC units (Frank et al., 2001) recorded from a single tetrode located in layer 2. The firing properties of the first unit (yellow) are depicted in Figure 3B. A: Individual cluster boundaries characterized by the first principal component from two electrodes. B: Autocorrelogram histograms for each unit, note that theta modulation is clearly apparent in eight of the 11 units (reference time pre/post = 500 msec; 12.5 msec/bin). Inset upper left: interspike interval distributions for each unit; inset upper right: individual waveforms; inset bottom center: autocorrelogram histograms zoomed in to illustrate that no spikes occurred within 1.2 msec of each other, and thus minimizing the likelihood that spikes from other units were included (reference time pre/post = 120 msec; 3 msec /bin).
- supplemental material
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Supplementary Figure 2. Comparison of spatial firing properties as a function of distance from postrhinal border. A: Number of units isolated along dorsal-ventral axis of dorsocaudal medial entorhinal cortex. B: Average place field size for dorsocaudal medial entorhinal neurons; each dot represents the average place field size for the set of units with place fields on the maze that were isolated from a single tetrode during a recording session. C: Average spatial information rate for dorsocaudal medial entorhinal neurons; each dot represents the average spatial information rate (bits/sec) for the set of units with place fields anywhere on the maze that were isolated from a single tetrode during a recording session.
