Table 2 Estimated posterior distributions for best-fitting model of each condition presented in Table 1.

Coefficients represent predicted total time spent looking toward the speaker after FS/GS, and VS relative to FS/GS.

SpeciesConditionParameterMeanSD5.5% CI94.5% CI
MarmosetsNonadjacentFS/GS0.290.150.070.53
VS0.610.280.171.03
MarmosetsAdjacentFS/GS0.300.160.030.52
VS0.790.380.161.38
ChimpanzeesNon-adjacentFS/GS0.490.280.010.88
VS1.541.09−0.193.20
ChimpanzeesAdjacentFS/GS1.280.670.202.25
VS1.270.850.022.60