Head orientation in turns--how is it taught for aviation?

Mxsmanic wrote in
:

PPL-A (Canada) writes:

Back to your original question ... I will supply an answer of what
"is" ... I was (as you asked) taught during my ab initio flight
training to keep my head and body in a straight line, and not bend at
the neck, neither away from nor toward the direction of the turn.
Swiveling the head and/or moving the eyes to watch the patch of sky
you were heading toward is taught (of course). Swiveling the head in
the other direction is also taught to look for possibly converging A/
C. However, one is taught to NOT bend your neck during turns. The
argument is made that doing this makes you more prone to
disorientation, sloppy flying, and a phenomenon called "the leans"
after prolonged turns or during instrument flying.

And is this argument supported by scientific data, or simply folk
wisdom? Why would it be the recommended behavior for identical turns
on a motorcycle, but not for flying? Who's right, and why?

I'm right because I do both well.


Bertie