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)
decrease mfc » decrease of (Expand search), decrease toc (Expand search), decrease milk (Expand search)
depressed on » depressed and (Expand search), expressed on (Expand search), depressed nk (Expand search)
on decrease » on decreased (Expand search), of decrease (Expand search), or decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease NOT decrease mfc processing ) OR ( decrease during depressed on decrease ))~.