A popular meditation technique that's intended to create feelings of kindness can also reduce prejudice, according to a recent study.

Researchers from the University of Sussex found that just seven minutes of Loving-kindness meditation (LKM), a Buddhist practice that promotes unconditional kindness towards oneself and others, is effective at reducing racial bias, Health Aim reported.

"This indicates that some meditation techniques are about much more than feeling good, and might be an important tool for enhancing inter-group harmony," Alexander Stell, lead researcher of the study, said in a statement. "We wanted to see whether doing LKM towards a member of another ethnic group would reduce the automatic preference people tend to show for their own ethnic group."

Some previous studies have shown that inducing happiness in people, for example by exposing them to upbeat music, can actually make them more likely to have prejudiced thoughts compared to those hearing sad music.

For the study, a sample of 71 white, non-meditating adults were each given a photo of a gender-matched black person and either received taped LKM instructions, or instructions to look at the photos and notice certain features of the face. Both conditions lasted just seven minutes.

The researchers found that just seven minutes of LKM directed to a member of a specific racial group (in this case, a black person) was sufficient to reduce racial bias towards that group. However, there was no marked reduction in racial bias towards other groups.

Additionally the researchers measured levels of positive emotions that were either 'other-regarding' (e.g. love, gratitude, awe, elevation) and those that were more self-directed (e.g. contentment, joy, pride) and found that people doing LKM showed large increases specifically in other-regarding emotions. These other-regarding emotions were found to be what drives the reduction of bias.

The findings are detailed in the journal Motivation and Emotion.