Perhaps you should try some spelling variations:
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
pitch processing » batch processing (Expand search), peach processing (Expand search), with processing (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
decrease via » decrease in (Expand search), decrease hiv (Expand search), decrease il (Expand search)
via decrease » via decreasing (Expand search), urea decrease (Expand search), will decrease (Expand search)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease or (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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease during depressed pitch processing ) OR ( decrease via decrease on decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed pitch processing ) OR ( decrease via decrease on decrease ))*.