  Within the framework of modified gravity model namely Slotheon model,
inspired by the theory of extra dimensions, we explore the behaviour of Dark
Energy and the perturbations thereof. The Dark Energy and matter perturbations
equations are then derived and solved numerically by defining certain
dimensionless variables and properly chosen initial conditions. The results are
compared with those for standard quintessence model and $\Lambda$CDM model. The
matter power spectrum is obtained and also compared with that for $\Lambda$CDM
model. It appears that Dark Energy in Slotheon model is more akin to that for
$\Lambda$CDM model than the standard quintessence model.
