How can I replace colon with dot in caption figure?

Question

I have a \documentclass[11pt, twoside, a4paper, twocolumn]{article}

I have something like this: Figure: xxxxxxxx

And I need: Figure. xxxxxxxxx

I need change the colon with a dot.

An example of my figures:

\begin{figure*}
  \centering
  \includegraphics[width=0.7\textwidth]{ZonaInfluencia.png}
  \caption{Study area}
  \label{AreaInfluencia}
\end{figure*}