Figure 2 –

Modulation of POR LM-HD cell firing by visual landmarks. A) Schematic top-down view of the recording arena across the three sessions of the AB experiment, including the reference frame for measuring HD. B) Tuning curves for two example POR LM-HD cells (left peak-locked, right trough-locked) across the three sessions of the AB experiment. Cue positions in an allocentric reference frame are indicated by red lines. Note that both cells became bidirectionally tuned during the AB session. C) Same as (A) but for the no cue experiment. D) Tuning curves for two example POR LM-HD cells (left peak-locked, right trough-locked) across the three sessions of the no cue experiment. Note that both cells became less strongly tuned when cue A was removed. E) Same as (A) but for the B experiment. F) Tuning curves for two example POR LM-HD cells (left peak-locked, right trough-locked) across the three sessions of the B experiment. Note that both cells became bidirectionally tuned when cue B was introduced and cue A was removed. G) Same as (A) but for the AC experiment. H) Tuning curves for two example co-recorded peak-locked POR LM-HD cells across the three sessions of the AC experiment. Note that, while the cell on the left did not become bidirectional in response to the addition of cue C (the most typical response), the cell on the right did, suggesting that both types responses are simultaneously possible among POR cells. Figure modified from LaChance et al., 2022.