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A normative model of peripersonal space encoding as performing impact prediction

Fig 9

Modulation of PPS for face and torso in 3D model by prediction time step.

Dependency between distance of stimuli from body and the mean of 1000 impact predictions calculated by the 3D model (see Section Extension to 3D space) for each distance and for PPS representation around the face (body part size [25cm, 25cm]) and trunk (body part size [50cm, 50cm]). Baseline parameters (see Table 1) were used. Horizontal and vertical uncertainties were set to . For a detailed experiment description see Fig 8. (Left) Prediction time step ΔT is same for both body parts (baseline value). The vertical and horizontal uncertainties are not large enough to cause different sizes for both body parts. (Right) The prediction time step is higher for the torso (ΔT = 0.75s) than for the face. In this setting, the PPS beginnings of both body parts fit roughly the empirical estimations. The vertical dashed lines correspond to the PPS beginning estimations from [14, 33]. See S5 Fig for a version with FN = FP = 1.

doi: https://doi.org/10.1371/journal.pcbi.1010464.g009