\section{Joint feature probabilities}
we did ... \cite{Schumann}

\begin{figure}[htbp]
\label{jointprobabilities}
\fbox{ \begin{minipage}{\textwidth}
\begin{tabular}{cc}
monkeys & humans \\
\input{jointprobTCLCmonkeys.tex} & \input{jointprobTCLChumans.tex} \\
\input{jointprobbarnessLCmonkeys.tex} & \input{jointprobbarnessLChumans.tex} \\
\input{jointprobbarnessTCmonkeys.tex} & \input{jointprobbarnessTChumans.tex} \\
\end{tabular}
\caption{Joint probabilities of the image features}
\end{minipage} }
\end{figure}

\begin{table}[htbp]
\fbox{ \begin{minipage}{\textwidth}
\begin{tabular}{lcccccc}
& monkeys & humans & monkeys & humans & monkeys & humans \\
& \multicolumn{2}{c} { LC/TC } & \multicolumn{2}{c} { barness/LC } & \multicolumn{2}{c} { barness/TC } \\
$I(X;Y)$ & 0.1601 & 0.0970 & 0.2127 & 0.3534 & 0.2010 & 0.2531 \\
$r$ & 0.5483 & 0.9432 & 0.5416 & 0.4324  & 0.3857 & 0.4188 \\
ks-test & \multicolumn{2}{c}{ 1, p=1.3340e-08 } & \multicolumn{2}{c}{ 1, p=1.1264e-04 } & \multicolumn{2}{c}{ 1, p=1.1264e-04 } \\
signed-test & \multicolumn{2}{c}{ 1, p=0.0082 } & \multicolumn{2}{c}{ 0, p=0.3789 } & \multicolumn{2}{c}{ 0, p=0.0977 } \\
\end{tabular}
\label{jointprobabilitiestable}
\caption{Joint probabilities of the image features}
20 bins. 
\end{minipage} }
\end{table}

\begin{singlespacing}  
\begin{table}[!htb]
\label{featurecontrastovertimetable}
\centering
\fbox{ \begin{minipage} {\textwidth}
\begin{tabular}{lcc}
\multicolumn{3}{c}{ luminance contrast } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0542  &  -0.0407  \\ 
{   } p-values  &  0.0016  &  0.0000  \\ 
KW & \multicolumn{2}{c}{ p= 0.0000 } \\ 
\end{tabular}
% median  0.0099 ,  1.2166 
% std 0.8877 ,  0.9346 
\begin{tabular}{lcc}
\multicolumn{3}{c}{ barness } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0553  &  0.0455  \\ 
{   } p-values  &  0.0014  &  0.0000  \\ 
KW & \multicolumn{2}{c}{ p= 0.0262 } \\ 
\end{tabular}
% median  0.0326 ,  0.0122 
% std 0.5195 ,  0.4397
\begin{tabular}{lcc}
\hline
\multicolumn{3}{c}{ texture contrast } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0631  &  -0.0356  \\ 
{   } p-values  &  0.0004  &  0.0000  \\ 
KW & \multicolumn{2}{c}{ p= 0.0237 } \\ 
\end{tabular}
% median  -0.0666 ,  0.0847 
% std 0.9129 ,  0.9437 
\caption{Feature contrast over time}
\end{minipage} }
\end{table}
\end{singlespacing}  % double line spacing

\begin{figure}[!htb]
\label{featurecontrastovertime}
\centering
\fbox{ \begin{minipage}{\textwidth}
\begin{tabular}{ccc}
\input{luminancecontrastovertime.tex} & \input{barnessovertime.tex} & \input{texturecontrastovertime.tex}
\end{tabular}
\caption{Feature contrast over time}
Correlation of normalized feature contrasts with time according to the re-definition of controls. The abscissa shows fixation numbers (by occurrence in trial). 
\end{minipage} }
\end{figure}
