Technology and Techniques to Use Neurophysiologically Determined Feedback to Measure Independent Capacities of the Right and Left Halves of the Brain

A method, or corresponding dynamic display system, for customizing a controller of a display system includes presenting a visual stimulus to a subject at at least one known location relative to the subject's eye gaze; measuring brain activity of the subject's left and right brain hemispheres in response to the subject's viewing of the stimulus; processing the measured brain activity to determine a frequency-dependent metric of the measured brain activity; assessing independent cognitive capacities of the subject's left and right brain hemispheres based on the frequency-dependent metric; and adjusting a function of the controller in the display system according to the assessed independent capacities, such as by adjusting the function to change a stimulus load in a visual hemifield according to the brain activity in the contralateral brain hemisphere. Example applications include head-up display (HUD), augmented reality (AR) or virtual reality (VR) display systems, and brain injury assessment systems.