  In this paper, we prove the existence of a compact global attractor for the
flow generated by equation
  $$
  \frac{\partial u}{\partial t}(x,t)+u(x,t)= \int_{\mathbb{R}^{N}}J(x-y)(f(
u(y,t))dy+ h, \quad h > 0, \quad x\in \mathbb{R}^{N}, \quad t\in\mathbb{R}_{+}
  $$ in the weight space $L^{p}(\mathbb{R}^{N}, \rho)$. We also give uniform
estimates on the size of the attractor and we exhibit a Lyapunov functional to
the flow generated by this equation
