Perhaps you should try some spelling variations:
visual regions » visual response, visual neurons, visual responses
2008 sice » 2008 nice, 2008 space, 2008 some
2008 ice » 2008 nice, 2008 ide, 2008 ise
worlds 2 » worlds _, worlds a, worlds 3

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: "((2008 ice) OR (2008 sice)) worlds 2 primary visual regions".
• Adding a wildcard symbol may retrieve word variants: ((2008 ice) OR (2008 sice)) worlds 2 primary visual regions*.