Perhaps you should try some spelling variations:
fear processing » pear processing (Expand search), fur processing (Expand search), after processing (Expand search)
decreased fear » decreased heart (Expand search), decreased mean (Expand search), decreased after (Expand search)
or decreased » or decrease (Expand search), of decreased (Expand search), or decreases (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
decrease at » decrease akt (Expand search), decrease and (Expand search), decrease in (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and decrease (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 OR decreased fear processing ) OR ( decrease at decrease toc decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease or decreased fear processing ) OR ( decrease at decrease toc decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease or decreased fear processing ) OR ( decrease at decrease toc decrease ))*.