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Firing correlates for F and f̃ with different input functions and different modulatory functions
| α(τ) | f(τ) | F(s) | f̃ | |
|---|---|---|---|---|
| Purely temporal | 1 | f(τ) | Exponentially-decaying | Time cells |
| History-dependent spatial | |v(τ)| | fθ(τ) | Trajectory-coding cells | Retrospective splitter cells |
| Purely spatial | vθ(τ) | f[(x(τ))] | Border cells | Boundary vector cells |
