Pupil Dilation (image) Binghamton University Share Print E-Mail Caption Researchers at Binghamton University recruited 57 women with a history of major depressive disorder. They recorded the change in pupil dilation in response to angry, happy, sad and neutral faces. The team found that women's pupillary reactivity to negative (sad or angry faces) but not positive stimuli prospectively predicted MDD recurrence. Credit Jonathan King/Binghamton University Usage Restrictions The image may only be used with appropriate caption or credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.