>If this is true, then I think that relying on such sensations (like tension in the vocal chords, or anticipation, or needing confidence, or a slight shift in our brain, as you pointed out) would only add a "threshold mechanism" (or suppression / filter mechanism that limits speech initiation of planned words or motor programs). Are you referring to the variable release threshold theory of stuttering here. Something I learned about not too long ago from this video: https://youtu.be/AES-7ARLYgg?feature=shared It's an interesting theory as why we're fluent in different situations. It's basically saying that we should value accuracy of speech less, so we don't place to high of demand or "expectation" on our speech being perfect. And somehow that causes less errors in the motor planning , aka less blocks. I don't quite understand that part yet fully. >we should instruct motor execution (to send command signals), anyway despite such sensations that trigger us, and without relying on expectations that demand us to reduce such sensations. What do you mean by this? Are you saying you should push through blocks? Or are you saying one should employ some kind of block modification technique? Cause the former isn't a viable option since it almost never works and it's physically exhausting.