We all know someone who struggles to stay quiet during a conversation. Whether it is a partner, a close friend, or a manager at work, they instinctively share their thoughts before you have even finished your sentence.
Society often labels chronic interrupters as rude or lacking basic social etiquette. However, psychologists who study human interaction say the underlying cause has a strictly scientific explanation.
People talking.
The Science of Turn-Taking
The human brain is hardwired to formulate a response while simultaneously listening to someone else speak.
Researchers explored this dynamic in the study ‘The Interaction Engine: Cutters, Turn-Taking and the Origins of Language’. They discovered that this cognitive anticipation is exactly what allows conversations to flow smoothly with minimal pauses between speakers.
Because the brain prepares its answers so rapidly, some individuals naturally vocalize their thoughts prematurely, interrupting the speaker without consciously realizing it.
Resource image of two people talking.
A Lapse in Inhibitory Control
One of the brain’s most crucial functions is inhibitory control. This is the cognitive ability to suppress an automatic response until the appropriate moment to act arrives.
When a discussion becomes highly stimulating, certain individuals struggle to contain their responses. Their inhibitory control temporarily falters, causing them to interject before the other person has yielded the floor.
Experts emphasize that in most cases, the interrupter is not trying to be disrespectful. They are simply experiencing a heightened difficulty in suppressing the physical impulse to speak.
This same neurological mechanism explains why some people constantly finish others’ sentences. The brain’s language center continuously predicts what will be said next to speed up communication, inevitably leading to overlapping dialogue.
