[Parkinson disease and depression: a research carried out with the neurology service at S. Joao Hospital].

By comparison of the values of the Hamilton's scale obtained for patients suffering from Parkinson's disease coupled with depression with the results from a group of depressed patients alone, from the psychiatric consultations in an hospital, it was found that depression for people with Parkinson's disease is somewhat different from the one in the latter group; it is concluded that the affinity between the depression in the two groups can not be understood only as an effect of similarity in its biological mechanisms.