The star, who rose to fame in the 1980s, shared that he tried ketamine therapy in an attempt to treat his depression.

“I wanted to see if it’d open a few things in my brain,” Springfield told People.

“It was a creative experiment and an experiment on depression. I did it for as long as suggested, and I wasn’t a big fan,” Springfield said. “It made me feel heavy and machinelike. It didn’t change much in me — although I have been writing a lot, so you never know what kind of effect it has later on. It’s not a black-and-white kind of thing.”