  The hippocampus is often attributed to episodic memory formation and storage
in the mammalian brain; in particular, Alme et al. showed that hippocampal area
CA3 forms statistically independent representations across a large number of
environments, even if the environments share highly similar features. This lack
of overlap between spatial maps indicates the large capacity of the CA3
circuitry. In this paper, we support the argument for the large capacity of the
CA3 network. To do so, we replicate the key findings of Alme et al. and extend
the results by perturbing the neural activity encodings with noise and
conducting representation similarity analysis (RSA). We find that the
correlations between firing rates are partially resistant to noise, and that
the spatial representations across cells show similar patterns, even across
different environments. Finally, we discuss some theoretical and practical
implications of our results.
