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Fig. 7 | BMC Systems Biology

Fig. 7

From: Adaptive information processing of network modules to dynamic and spatial stimuli

Fig. 7

Inputs with spatial and temporal variation. (a) shows how an adaptive circuit DR08.M34 (where the signal converts B to A) can sense and respond to a spatial gradient which is not static in a persistent way, even without any diffusible entity. The response of two circuits: DR08.M34 and TC to ramps whose slopes vary spatially (b, c), travelling wave inputs (which elicit travelling wave responses implying that local time averaged outputs do not vary spatially)) (d, e) and standing wave inputs (f, g) are depicted. (f, g) depict the temporal average over a cycle of oscillations as a function of spatial location. In model DR08.M34 the temporal average varies with the spatial location, though the spatial average of the temporal average is fixed. TC, even with the autocatalytic species moderately diffusible, exhibits an essentially exact maintenance of temporal average at every location. The insets in (f, g) show the oscillations at different spatial locations, indicative of a standing wave.In particular (d, f) shows how a circuit can exactly maintain its local time averaged response to a travelling but not standing wave. See text for discussion

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