Neural and vascular responses to fused binocular stimuli: A VEP and fNIRS study

The aim of the study was to investigate the correlation between neural and haemodynamic responses to stereoscopic stimuli recorded over visual cortex. Methods: Test stimuli consisted of a static checkerboard (checks) and dichoptic static random dot (RD) presentations with no binocular disparity (ZD) or with horizontal disparity (HD). Haemodynamic responses were recorded from right and left occipital sites using functional near-infrared spectroscopy (fNIRS). Visual evoked potentials (VEPs) were recorded over three occipital sites to the onset of the same stimuli.