Perhaps you should try some spelling variations:
decrease response » decreased response (Expand search), increased response (Expand search), increases response (Expand search)
fear processing » pear processing (Expand search), fur processing (Expand search), after processing (Expand search)
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decrease on (Expand search)
toc decrease » the decrease (Expand search), not decrease (Expand search), of decrease (Expand search)
decreased to » decreased the (Expand search), decreased tgf (Expand search), decreased in (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease toc decrease fear processing ) OR ( decreased to decrease response decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrease fear processing ) OR ( decreased to decrease response decrease ))*.