The researchers studied 214 mothers who were divided into three groups: Women with a mood disorder who were not taking any antidepressants; women with a mood disorder who were taking a serotonin reuptake inhibitor (SRI) antidepressant; women who did not have a mood disorder and were not taking an SRI antidepressant (comparison group). They evaluated the babies for signs on the Finnegan Scale, which lists 21 symptoms that are most frequently observed in infants who have been exposed to illicit or prescription drugs. The rates of sign presence in the SRI, mood disorder and comparison groups were similar at 34.1 percent, 35.1 percent and 30.4 percent, respectively.