The invention describes methods of treating depression comprising administering a TNFalpha antibody, such as a human TNFalpha antibody. The invention also provides a method for treating depression comprising inhibiting TNFalpha activity in a subject suffering from depression by systemically administering to the subject a human anti-TNFalpha antibody, or an antigen-binding portion thereof, such that depression is treated. Also described is a method for the treatment or alleviation of depression or other affective disorders comprising administering an amount of an anti-inflammatory agent effective to treat or alleviate depression or other affective disorder to a subject in need thereof, wherein said anti-inflammatory agent down-regulates peripheral cytokine levels to thereby treat or alleviate depression or other affective disorder.