Figure Caption
Modified Ising model captures the behavior of anterior rhombencephalic turning region (ARTR) under visual stimulation.(A) Scheme of the stimulation protocol. The left and right eyes are stimulated alternatively for periods of 15β30 s, after which a period of spontaneous (no stimulus) activity is acquired. (B) Example of the ARTR activity signals under alternated leftβright visual stimulation. The small arrows indicate the direction of the stimulus. (C) Sketch of the modified Ising model, with additional biases πΏβπ to account for the local visual inputs. (D) Values of the additional biases averaged over the ipsilateral and contralateral (with respect to the illuminated eye) neural populations. n = 6 fish. (E) Monte Carlo activity traces generated with the modified Ising model. (F) Free-energy landscapes computed with the mean-field theory during spontaneous (left panel) and stimulated (right panel) activity for an example fish. (G) Free-energy along the optimal path as a function of ππΏβππ
during spontaneous (plain line) and stimulated (dotted line) activity. The model is the same as in panel (F).