We all know that some people hear a stereo audio image depicting a sound stage wide and deep with specific location of instruments and singers on one extreme and some hear only left - right - center on the other extreme. The rest of us are somewhere in between. A lot of this is probably due to expectation bias, but one other explanation occurs to me. I think it is partly due to left-right brain balance or dominance.
You confused and conflated two interesting subject together ...
First , timbre perception, bass clarity and impact, dynamic, imaging, soundstage and the listerner envelopment/source width ratio or LEV/ASW ratio, all these acoustic factors and cues had nothing to do with the two hemispheres of the brain...
They are acoustic and psycho-acoustic factors we can and may control at will in a room by passive material treatment and the right balance between absorbing and reflective and diffusing surfaces... But also by mechanical control of the room with Helmholtz resonators ans diffusers...We can also add Schumann generators and ionizers...
Then all these materials and devices has nothing to do in a direct and in an immediate way with, placebos, deceptive illusions, and the ratio of dominance between the two hemispheres of the brain ...Sorry...
Yes there is a a role for the two hemispheres dominance ratio...
Yes bullshit has been written about it decades ago...
The most known specialist about this question is NOWADAYS a scottish neuropsychiatrist i suggest you must read ... Iain McGilchrist...
His two main books are big one, the last one is 1300 pages long... 😁😊
This is a link under this post that will resume his discoveries and thesis in few minutes ...
The two brain hemispheres are linked to two complementary modalities of the attention process; Focusing on details or on specfic KNOWN spot and peripheral attention or focusing on the UNKNOWN around us or in between the known regions...This divided brain then has nothing to do with the feminine versus the masculine etc and all the psycho babbles which are more than wrong because they are only partial distorted simplistic truths...
Even if the two brain ratio and modalities of function can influence our listening mood, and our focusing abilities they cannot EXPLAIN NOR DESCRIBE all the real acoustic and psycho acoustic factors at play when we listen sound music in our room ...
Acoustic is the more UNDERESTIMATED factor at play in audiophile experience...
All audio thread reflected an almost if not complete ignorance of acoustic power a vast minimization of his huge improvement potential...
What i just say is not only my opinion and personal experience, it is a scientific fact...
But marketing conditioning had directed the attention , like Pavlov conditioned dogs, on the ONLY associated signals of excellence: gear design brand name, and not acoustic control at all...
At best acoustic is perceived to be a SECONDARY addition to the gear...
In reality it is the gear choice which being important for sure is at the end the secondary factor compared to acoustic/psycho-acoustic method and experiments...
No speaker at any price can beat his room said an acoustician...
i discovered it the hard way...
i will never read audio magazine again... Nor upgrade....
Guess why? 😁😊
My best to you for this interesting question thread...
With my deepest respect....