Resumen de Our eardrums move in sync with our eyes
Jennifer Groh at Duke University in Durham NC and her team have been using microphones inserted into people's ears to study how their eardrums change during saccades--the movement that occurs when they shift visual focus from one place to another. Examining 16 people, the team used the microphones to detect changes in ear canal pressure that were probably caused by middle-ear muscles tugging on the eardrum. These pressure changes indicate that when they look left, for example, the drum of their left ear gets pulled further into the ear and that of their right ear gets pushed out before they both swing back and forth a few times.
