Table 3.

Comparison of the observed characteristics (subscript ″o″) of binary mixtures with those predicted (subscript ″p″) by the model of syntopic interaction

SetsaSizesbComparison of EC50s (log molar)cComparison of maxima (spikes/s)d
ORNUVlog(r)NoNplogKologKplogKo/KptKPKSKFMoFMpFMoFMptFPFSF
15.4ANIISO−0.19977−6.0 ± 0.2−5.9 ± 0.3−0.100.570.71NS153 ± 31150 ± 193.10.170.57NS
09.3CITLIL1.00555−8.4 ± 1.5−7.8 ± 0.5−0.540.690.74NS12 ± 613 ± 2−1.10.310.62NS
37.6CAMLIM−1.30466−4.7 ± 0.4−4.9 ± 0.30.200.820.78NS42 ± 2233 ± 128.20.640.73NS
37.6LIMMEN0.593106−5.9 ± 0.2−5.8 ± 0.2−0.171.100.86NS49 ± 555 ± 6−5.81.440.91NS
37.6CAMMEN−0.711107−6.2 ± 0.2−6.4 ± 0.20.161.140.86NS61 ± 556 ± 65.61.460.92NS
28.1LIMLYR4.72575−5.0 ± 0.2−5.1 ± 0.20.171.290.89NS100 ± 2575 ± 1724.11.540.92NS
27.1EVALYR−0.41955−9.4 ± 0.2−9.6 ± 0.20.221.440.91NS31 ± 1216 ± 1715.81.510.92NS
39.1ANIISO−0.19966−4.3 ± 0.4−4.3 ± 0.2−0.020.070.53NS54 ± 2690 ± 15−35.52.320.98S
40.2LIMMEN0.59375−5.2 ± 0.1−5.2 ± 0.2−0.030.280.61NS57 ± 844 ± 812.82.250.98S
17.1LYRMEN−4.13277−5.9 ± 0.4−6.2 ± 0.30.341.280.89NS32 ± 107 ± 225.04.981.00S
28.1LYRMEN−4.13255−7.0 ± 0.3−7.4 ± 0.10.332.310.98S99 ± 23112 ± 7−13.01.060.84NS
15.4ANIMAK−0.038116−6.7 ± 0.2−6.3 ± 0.3−0.432.240.98S192 ± 20203 ± 49−11.40.420.66NS
17.3CAMCIT0.29985−7.0 ± 0.2−6.8 ± 0.1−0.241.990.96S21 ± 536 ± 6−14.73.771.00S
17.3CAMLIM−1.30477−5.8 ± 0.2−6.4 ± 0.20.594.201.00S29 ± 616 ± 313.74.401.00S
17.1LIMMEN0.59377−5.8 ± 0.1−5.2 ± 0.1−0.627.661.00S36 ± 348 ± 5−12.74.251.00S
  • aRatio U0/V0 of molarities of saturating vapors of odorants U and V (see Table 1).

  • bNumber Np of points of predicted curve is the smallest of the number of stimulations with U (NU) and V (NV).

  • cPredicted EC50 values (logKp ± ΔlogKp) given by Equation 2 and supplemental Equation A24 (available at www.jneurosci.org as supplemental material). Difference logKo − logKp, with observed EC50 (logKo ± ΔlogKo) significantly different from 0 (S in column SK) at significance level 5%, when P value PK of t test tK with df degrees of freedom (df = No + Np− 2) greater than 0.95. Not significant (NS) otherwise.

  • dPredicted asymptotic firing rates (FMp ± ΔFMp) given by Equation 3 and supplemental Equation A29 (available at www.jneurosci.org as supplemental material). Difference FMoFMp, with observed maximum firing rate (FMo ± ΔFMo), tested by t test at level 5%, with tF, PF, and SF as for EC50.