A scalar field as a candidate for the cosmological non-baryonic dark matter

We present an up-to-date report on the status of the cosmological model bas ed on a massive scalar field non-minimally coupled to gravity, which has be en recently used to explain the apparent periodicity in the distribution of galaxies, and as a model for the missing non-baryonic component of dark ma tter, within the standard inflationary scenario (Omega = 1). The model agre es with most cosmological observations, however local experiments can pose serious constraints that indicate the necessity of a slightly modified mode l.