4.1.4 Is the Positive/Negative Recognition Phenomenon Replicated by the Robot? Yes, Partially Even for the robot stimuli, the discrimination between positive and negative expressions showed a trend to better recognize the positive expressions (Figure 6 A).
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The sentences
The comparison among robot stimuli where the realism gradually increases, i.e., from photographs to 3D models up to the physical robot, shows a positive trend of the recognition rate (Figure 4 A).