Listen to your inner voice (IMAGE) University of Copenhagen - Faculty of Humanities Caption Between 5-10 per cent of the population do not have the same experience of an inner voice, and they find it more difficult to perform certain verbal memory tasks, new research shows. Credit Photo: Brewing Colors, https://500px.com/p/BrewingColors?view=photos Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.