Negative Symptoms in Schizophrenia (IMAGE) University of Nevada, Las Vegas Caption UNLV psychology professor Daniel Allen, who recently published a study about negative symptoms in schizophrenia, works with former UNLV undergraduate researcher Bernadine Palisoc in 2015. Credit Aaron Mayes/UNLV Photo Services Usage Restrictions None License Licensed content 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.