|Clip art: Clker|
"When we want to listen carefully to someone, the first thing we do is stop talking. The second thing we do is stop moving altogether. The interplay between movement and hearing has a counterpart deep in the brain. A new study used optogenetics to reveal exactly how the motor cortex, which controls movement, can tweak the volume control in the auditory cortex, which interprets sound."
Now, granted, the study was done on mice who probably have some other stuff going on down there in their motor cortices as well. Nonetheless, the striking insight into the underlying relationship between movement and volume control on our auditory input circuits is enough to give us (an encouraging) "pause . . . " in two senses:
First, learning new pronunciation begins with aural comprehension, being able to "hear" the sound distinctions. We have played with the idea of having learners gesture along with instructor models while listening. The study suggests that may not be as effective as we thought, or at least the conditions that we set up have to be more sensitive to "volume" and ambient static. You can see the implications for aural comprehension work in general as well.
Second, during early speaking production in haptic pronunciation instruction, being able to temporarily suppress auditory input (coming in through the ears) is seen as essential. Following Lessac and many others in speech and voice training, what we are after initially is focus on vocal resonance in the upper body and kinaesthetic awareness of the gestural patterns, what we call "pedagogical movement patterns" or PMPs.
We do that, in part, to dampen (i.e., turn down the volume) on how the learner's production is perceived initially, filtered through the L1 or personal interlanguage versions, trying to focus instead on the core of the sound(s), approximations, not absolute accuracy. Some estimates of our awareness of our own voice suggest that it is less than 25% auditory, that is coming in through the air to our ears, the rest being body-based, or somatic.
What we hear should be moving, not what we hear with apparently!