the genus points and the fitting function $$G = A_{-/+} \nu' e^{-\nu'^2 /2},$$ where $\nu' = \nu - \Delta\nu_{-/+}$ and the fitting is performed over the range $-2.4 \le \nu \le -0.2$ and $0.2 \le \nu \le 2.4$, respectively. Asymmetry parameter is defined as $$\Delta g \equiv 2 \left( { {A_{+} - A_{-}} \over {A_{+} + A_{-}}} 
   \right).$$ Positive $\Delta g$ means that more hot spots are present than cold spots. The Galactic foreground emission as well as point sources have significant effects on the genus curve even at high Galactic latitudes. The Galactic foregrounds make the genus shifted to the left at all threshold levels while the radio point sources cause positive genus asymmetry (see Table 3 of PPR).

[lrrrr]{} Maps & $A$ & $\Delta\nu_{-}$ & $\Delta\nu_{+}$ & $\Delta g$\
\
WMAP Q (Foreground-Subtracted) & $842$ & $+0.003$ & $+0.005$ & $+0.006$\
WMAP V (Foreground-Subtracted) & $1361$ & $+0.008$ & $-0.015$ & $+0.017$\
WMAP W (Foreground-Subtracted) & $2029$ & $+0.019$ & $-0.017$ & $+0.018$\
WMAP W (Foreground-Subtracted, North) & $2132$ & $+0.024$ & $-0.019$ & $-0.016$\
WMAP W (Foreground-Subtracted, South) & $1939$ & $+0.006$ & $-0.014$ & ${\bf+0.047}$\
ILC & $ 231$ & $+0.042$ & $-0.002$ & $+0.017$\
TCM 