\documentclass{article}
\usepackage{setspace} % for changing spacing within the document


\begin{document}

\small\begin{singlespacing}  
\begin{table}[htb]

\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade duration } \\
 {} & monkeys & humans \\
{   } correlations  &  0.1348  &  0.2344  \\ 
{   } p-values  &  0.5938  &  0.4198  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0024 } \\ 
\end{tabular}
% median  0.0185 ,  1.2211 
% std 0.8841 ,  0.9384 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade speed } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0839  &  0.1769  \\ 
{   } p-values  &  0.7251  &  0.5123  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0004 } \\ 
\end{tabular}
% median  0.0159 ,  1.2223 
% std 0.8814 ,  0.9396 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade length } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.5372  &  0.4641  \\ 
{   } p-values  &  0.0146  &  0.0393  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0001 } \\ 
\end{tabular}
% median  0.0149 ,  1.2224 
% std 0.8817 ,  0.9397 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration } \\
 {} & monkeys & humans \\
{   } correlations  &  0.3438  &  0.8177  \\ 
{   } p-values  &  0.1377  &  0.0000  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0001 } \\ 
\end{tabular}
% median  0.0140 ,  1.2197 
% std 0.8864 ,  0.9364 

\label{eyemovementlctable}
\caption{Influence of luminance contrast on eye movements}
\end{table}
\normalsize\end{singlespacing}  % double line spacing



%%%%%%%%%%%%%%% barness
\small\begin{singlespacing}  
\begin{table}[htb]

\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade duration } \\
 {} & monkeys & humans \\
{   } correlations  &  0.3534  &  0.2437  \\ 
{   } p-values  &  0.1264  &  0.3631  \\ 
signed-test & \multicolumn{2}{c}{  0, p= 0.0879 } \\ 
\end{tabular}
% median  0.0318 ,  0.0132 
% std 0.5203 ,  0.4365 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade speed } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0872  &  0.8784  \\ 
{   } p-values  &  0.7148  &  0.0000  \\ 
signed-test & \multicolumn{2}{c}{  0, p= 0.5349 } \\ 
\end{tabular}
% median  0.0321 ,  0.0132 
% std 0.5197 ,  0.4363 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade length } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.2257  &  0.9120  \\ 
{   } p-values  &  0.3387  &  0.0000  \\ 
signed-test & \multicolumn{2}{c}{  0, p= 0.6542 } \\ 
\end{tabular}
% median  0.0316 ,  0.0128 
% std 0.5195 ,  0.4356 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.0613  &  -0.5092  \\ 
{   } p-values  &  0.7975  &  0.0219  \\ 
signed-test & \multicolumn{2}{c}{  0, p= 0.3507 } \\ 
\end{tabular}
% median  0.0346 ,  0.0117 
% std 0.5222 ,  0.4386 
\label{eyemovementbarnesstable}
\caption{Influence of barness on eye movements}
\end{table}
\normalsize\end{singlespacing}  % double line spacing



\small\begin{singlespacing}  
\begin{table}[htb]


\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade duration } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0046  &  0.2221  \\ 
{   } p-values  &  0.9846  &  0.3757  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0311 } \\ 
\end{tabular}
% median  -0.0715 ,  0.0872 
% std 0.9484 ,  0.9489 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade speed } \\
 {} & monkeys & humans \\
{   } correlations  &  0.2476  &  0.5958  \\ 
{   } p-values  &  0.2926  &  0.0149  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0004 } \\ 
\end{tabular}
% median  -0.0704 ,  0.0879 
% std 0.9401 ,  0.9471 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade length } \\
 {} & monkeys & humans \\
{   } correlations  &  0.3155  &  0.7576  \\ 
{   } p-values  &  0.1753  &  0.0001  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0025 } \\ 
\end{tabular}
% median  -0.0705 ,  0.0877 
% std 0.9476 ,  0.9480 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0737  &  0.7658  \\ 
{   } p-values  &  0.7573  &  0.0001  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0012 } \\ 
\end{tabular}
% median  -0.0681 ,  0.0858 
% std 0.9223 ,  0.9441 

\label{eyemovementtctable}
\caption{Influence of texture contrast on eye movements}
\end{table}
\normalsize\end{singlespacing}  % double line spacing


\small\begin{singlespacing}  
\begin{table}[htb]

\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ experiments 1 and 2 on abscissa } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.3788  &  0.0078  \\ 
{   } p-values  &  0.1638  &  0.9779  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0020 } \\ 
\end{tabular}
% median  90.0000 ,  64.0000 
% std 102.5593 ,  114.9615 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ experiments 3 and 4 on abscissa } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.8995  &  -0.0939  \\ 
{   } p-values  &  0.0000  &  0.6482  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0000 } \\ 
\end{tabular}
% median  30.5000 ,  79.0000 
% std 88.7333 ,  109.2388 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ experiments 1 and 2 on ordinate } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.7585  &  -0.3697  \\ 
{   } p-values  &  0.0010  &  0.1751  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0001 } \\ 
\end{tabular}
% median  84.0000 ,  46.0000 
% std 101.2458 ,  87.5609 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ experiments 3 and 4 on ordinate } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.8659  &  0.1278  \\ 
{   } p-values  &  0.0000  &  0.5337  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0007 } \\ 
\end{tabular}
% median  37.0000 ,  52.0000 
% std 75.2674 ,  82.4545 
\label{xymovement}
\caption{Movements along the abscissa and ordinate}
\end{table}
\normalsize\end{singlespacing}  % double line spacing




\small\begin{singlespacing}  
\begin{table}[htb]

\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation durations } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.8326  &  -0.8357  \\ 
{   } p-values  &  0.0001  &  0.0001  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0246 } \\ 
\end{tabular}
% median  192.0000 ,  228.0000 
% std 78.9897 ,  141.5190 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade durations } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.6108  &  -0.1098  \\ 
{   } p-values  &  0.0203  &  0.7087  \\ 
signed-test & \multicolumn{2}{c}{  0, p= 0.1007 } \\ 
\end{tabular}
% median  35.0000 ,  36.0000 
% std 10.3678 ,  16.5700 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade lengths } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.4898  &  -0.1130  \\ 
{   } p-values  &  0.0754  &  0.7006  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0031 } \\ 
\end{tabular}
% median  161.0435 ,  112.9690 
% std 115.4573 ,  120.3982 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade speed } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.3267  &  -0.1358  \\ 
{   } p-values  &  0.2542  &  0.6433  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0002 } \\ 
\end{tabular}
% median  4.4874 ,  2.9617 
% std 2.1792 ,  1.7323 
\label{eyemovementsovertime}
\caption{Eye movements over time}
\end{table}
\normalsize\end{singlespacing}  % double line spacing



%% eye movement correlations
\small\begin{singlespacing}  
\begin{table}[htb]

\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration and saccade speed } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.2618  &  -0.7481  \\ 
{   } p-values  &  0.2648  &  0.0001  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0002 } \\ 
\end{tabular}
% median  4.4874 ,  2.9617 
% std 2.1792 ,  1.7323 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade duration and saccade speed } \\
 {} & monkeys & humans \\
{   } correlations  &  0.5345  &  0.8774  \\ 
{   } p-values  &  0.0152  &  0.0000  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0062 } \\ 
\end{tabular}
% median  4.4874 ,  2.9617 
% std 2.1792 ,  1.7323 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade duration and saccade length } \\
 {} & monkeys & humans \\
{   } correlations  &  0.7697  &  0.9572  \\ 
{   } p-values  &  0.0001  &  0.0000  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0176 } \\ 
\end{tabular}
% median  161.0435 ,  112.9690 
% std 115.4573 ,  120.3982 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration and saccade duration } \\
 {} & monkeys & humans \\
{   } correlations  &  0.0035  &  -0.7111  \\ 
{   } p-values  &  0.9883  &  0.0004  \\ 
signed-test & \multicolumn{2}{c}{  0, p= 0.8105 } \\ 
\end{tabular}
% median  35.0000 ,  36.0000 
% std 10.3678 ,  16.5700 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration and saccade length } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.1561  &  -0.7540  \\ 
{   } p-values  &  0.5110  &  0.0001  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0008 } \\ 
\end{tabular}
% median  161.0435 ,  112.9690 
% std 115.4573 ,  120.3982 
\label{alleyemovementstable}
\caption{Correlations of eye movements}
\end{table}
\normalsize\end{singlespacing}  % double line spacing


\small\begin{singlespacing}  
\begin{table}[htb]

\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade length (ordinate)} \\
 {} & monkeys & humans \\
{   } correlations  &  0.6375  &  0.5124  \\ 
{   } p-values  &  0.0059  &  0.0424  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0113 } \\ 
\end{tabular}
% median  161.0435 ,  112.9690 
% std 115.4573 ,  120.3982 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade speed (ordinate) } \\
 {} & monkeys & humans \\
{   } correlations  &  0.4039  &  0.7109  \\ 
{   } p-values  &  0.1079  &  0.0020  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0005 } \\ 
\end{tabular}
% median  4.4874 ,  2.9617 
% std 2.1792 ,  1.7323 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade duration (ordinate) } \\
 {} & monkeys & humans \\
{   } correlations  &  0.7175  &  0.4432  \\ 
{   } p-values  &  0.0012  &  0.0855  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0203 } \\ 
\end{tabular}
% median  35.0000 ,  36.0000 
% std 10.3678 ,  16.5700 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration (ordinate) } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.3450  &  -0.6486  \\ 
{   } p-values  &  0.1363  &  0.0049  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0395 } \\ 
\end{tabular}
% median  192.0000 ,  228.0000 
% std 78.9897 ,  141.5190 

\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade length (abscissa) } \\
 {} & monkeys & humans \\
{   } correlations  &  0.7439  &  0.0195  \\ 
{   } p-values  &  0.0055  &  0.9519  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0005 } \\ 
\end{tabular}
% median  161.0435 ,  112.9690 
% std 115.4573 ,  120.3982 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade speed (abscissa) } \\
 {} & monkeys & humans \\
{   } correlations  &  0.8124  &  0.5838  \\ 
{   } p-values  &  0.0013  &  0.0362  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0005 } \\ 
\end{tabular}
% median  4.4874 ,  2.9617 
% std 2.1792 ,  1.7323 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ saccade duration (abscissa) } \\
 {} & monkeys & humans \\
{   } correlations  &  0.6632  &  -0.2181  \\ 
{   } p-values  &  0.0187  &  0.4959  \\ 
signed-test & \multicolumn{2}{c}{  0, p= 0.0908 } \\ 
\end{tabular}
% median  35.0000 ,  36.0000 
% std 10.3678 ,  16.5700 
\begin{tabular}{ccc}
\hline
\multicolumn{3}{c}{ fixation duration (abscissa) } \\
 {} & monkeys & humans \\
{   } correlations  &  -0.0483  &  -0.8105  \\ 
{   } p-values  &  0.8445  &  0.0008  \\ 
signed-test & \multicolumn{2}{c}{  1, p= 0.0212 } \\ 
\end{tabular}
% median  192.0000 ,  228.0000 
% std 78.9897 ,  141.5190 

\label{eccentricitytable}
\caption{Effects of eccentricity}
\end{table}
\normalsize\end{singlespacing}  % double line spacing




\end{document}

% table template
%\begin{table}

%\label{eyemovementlctable}
%\caption{Influence of LC on eye movements}
%\end{table}
