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. Author manuscript; available in PMC: 2013 Aug 20.
Published in final edited form as: J Neurosci. 2013 Feb 20;33(8):3567–3581. doi: 10.1523/JNEUROSCI.4522-12.2013

Figure 3. Improvement in neuronal sensitivity under cue combination depends on congruency of visual and vestibular tuning.

Figure 3

(A) Scatter plot of the ratio of the threshold measured in the combined condition relative to the prediction for optimal cue integration (Gu et al. 2008) versus the local Congruency Index (CI, see Methods). Cyan symbols are used for ‘congruent’ neurons with CI >0.4 (n=36); Red symbols are used for ‘opposite’ neurons with CI <−0.4 (n=5); Black symbols mark ‘intermediate’ neurons for which −0.4 < CI < 0.4 (n=15). Dashed horizontal line: threshold in the combined condition is equal to the prediction. Solid lines show type II linear regressions. Triangles and circles denote data from monkeys C and U, respectively. (B) Marginal distributions comparing this ratio for opposite (magenta), intermediate (black) and congruent (cyan) VIP neurons. Arrowheads illustrate geometric mean values.