Researchers at Boston College and Boston University suggest that one of the major reasons why people see taking their own lives as wrong is because they believe it taints the purity of a person's soul, a new study published in the journal Cognition reveals.
Philosophers have long debated whether suicide is considered immoral because it is harmful to others or because it is defiling and impure, said the study's lead author Joshua Rottman, a doctoral student working with Deborah Kelemen, associate professor of psychology at Boston University, and Liane Young, assistant professor of psychology at Boston College. But beyond the speculations of philosophers, what do people actually believe about this issue?
In order to find out, the researchers presented a sampling of American adults with obituaries describing suicide or homicide victims, and then asked them a series of questions regarding their reaction to what they had read.
The study findings also demonstrate that, while politically conservative and religious individuals find suicide more morally wrong than do secular liberals, even self-described non-religious liberals consider suicide to be morally wrong-and do so on account of concerns about moral purity and taint. "These results suggest that even if people explicitly deny the existence of religious phenomena, natural tendencies to at least implicitly believe in souls can underlie intuitive moral judgments," said Rottman.
These findings contribute to the scientific understanding of our moral judgments—and they also shed light on the real-world issue of people's psychological reactions to suicide by explaining why suicide is stigmatized and often considered a taboo topic of conversation. "A greater understanding of the processes relevant to the condemnation of suicide victims may prove useful for people worldwide who are affected by this widespread tragedy," said Rottman.