Figure 10.

Subsets of the neural networks that come into play for each combination of available target information (V, K) and hand feedback (K, VK, V) as a function of head tilt. Faded parts of the network are those that do not appear to be involved in the sensory information processing. White arrows indicate the reconstruction of missing sensory inputs that can explain the experimental results in each situation. For the head-upright condition, the deduction about information flow is based on the strength of the oblique effect (yellow symbols) that is ascribed to the visual acquisition of orientation (arrows on yellow background). For the head-tilted condition, the role played by each source of information is based on the effects of the imposed sensory conflict about head tilt (i.e., deviation of the visual scene). The color of the central region varies from blue to red, reflecting the amount of deviation induced by the tilting of the visual scene, which depends on the participation of different parts of the network in each condition (blue, no deviation; red, maximal deviation). Gray shading indicates elements of neural processing that occurred when the head was already tilted. The specific components contributing to the variance of the kinesthetic and visual comparisons (σ_ΔθK², σ_ΔθV²) are reported for each experimental condition (see Results). Border colors group together conditions that require similar assumptions to predict the experimental findings with the model of Figure 5B (see Results, Summary).