Thus far, the Major Depressive Disorder (MDD) specifier lineup has included some unsavory characters. As if these haven't been difficult enough, there is also the possibility of MDD patients ...

Catatonic depression: According to the DSM-IV, the catatonic subtype of depression is characterized by “marked psychomotor disturbance.” This could include an increase or decrease in motor activity, ...

Catatonia is an experience associated with a person taking a rigid or mute stance. Aspects of catatonia can also include unusual posturing, repetitive movements, repeating speech, and agitation. It is ...