article_snippet.sent: Participants then viewed 40 photographs selected from a database used by researchers around the world to elicit emotional responses.
article_snippet.sent: 40 photographs selected from a database used by researchers around the world to elicit emotional responses ranged from the extremely unpleasant, to the neutral and the very pleasant.
article_snippet.sent: After viewing each photo, participants were asked to rate how positive or negative each photo was on a scale of -5 (extremely negative) to +5 (extremely positive).
article_snippet.sent: The researchers then viewed the same photos again and were asked to rate how much each photo made The researchers feel an emotional reaction.
article_snippet.sent: The researchers did a second study in which The researchers had 85 people view the same photos and make the same judgments of evaluation and emotional reactions as in the prior study.
highlights_snippet.sent: Eighty one people were asked to look at happy, sad and neutral images .
  