An uptown psychiatrist is giving new meaning to “head shrinking.”

Washington Heights psychiatrist Peter Bulow has transformed the A train into his personal art studio, sculpting miniature busts of commuters from blobs of clay.

“I had a long commute to work, so I though it would be a good time to practice sculpting portraits,” says Bulow, 38, who has degrees in art and clinical psychiatry and works as a researcher at Columbia University.

Since he started his subway sculpting four years ago, Bulow has amassed more than 400 of the sculptures, which he calls portraits that help to “capture a moment in time.”

“It’s like I have a live connection with the subjects,” says Bulow. “It satisfies my fascination with people’s inner life.”

Read more: Washington Heights psychiatrist molds mini portraits of commuters on subway, uses them in study – NY Daily News.