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Integrated Information Increases with Fitness in the Evolution of Animats

Figure 2

Embodied virtual agent (animat) with six sensors, two actuators, and four internal nodes.

The complete animat is described by 12 bits: three front sensors (red triangles; # 0,1 & 2), two lateral collision detectors (blue triangles; # 4 & 5), and a single “door” sensor (magenta, #3) that relays the direction of the next opening in the maze (but only while standing in the door). The actuators (trapezoids; # 10 & 11) encode the actions “move left, move right, move forward, do nothing”. The internal nodes (circles; # 6–9) can potentially store states used for internal processing.

Figure 2