Not everyone has an internal monologue

Popular Science 

Your inner monologue may be less constant than you think--more like a fridge light that turns on when you look. Thinking doesn't always involve words. Breakthroughs, discoveries, and DIY tips sent six days a week. When I first started researching this story, I assumed I was writing about other people: those fascinating outliers who reportedly lack an internal monologue--the experience of actively speaking words in your mind as a sort of private narration of your life. Then I got on a Zoom call with Dr. Russell Hurlburt, a psychologist at the University of Nevada, Las Vegas, who has spent 50 years studying inner experience, and somewhere in the first ten minutes, I started to wonder: What if I'm talking about myself?