Researchers Find More Evidence That Left Hemisphere Plays Role in Speech Analysis

Until now, it has been assumed that the spoken word arises in the left side of the brain and is analyzed by the right side. According to accepted doctrine, this means that when we learn to speak English and, for example, practice the sound equivalent to “th,” the left side of the brain controls the motor function of the articulators like the tongue, while the right side analyzes whether the produced sound actually sounds as we intended.