Perhaps you should try some spelling variations:
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
mfc processing » hc processing (Expand search), ohmic processing (Expand search), music processing (Expand search)
depressed mfc » depressed manic (Expand search), depressed mood (Expand search), depressed left (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease during depressed mfc processing ) OR ( decrease AND decrease to decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease during depressed mfc processing ) OR ( decrease and decrease to decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed mfc processing ) OR ( decrease and decrease to decrease ))*.