Psychophysiological Measures Underlie Individual Differences in Perceptual Bistability
Visual search is a complex task. Many neural pathways are involved in identifying areas of interest within a scene. The paper combines biometric and neurometric devices to gain insight into the visual system of humans. A better understanding of perceptual reversals during ambiguous figures tasks is the key to modelling better Computer-Human Interactions as well as improved computer vision. For this study thirty-one participants were asked to perform a perceptual task on one-hundred images and recognize two meanings embedded in ambiguous figures. Participants’ eye gaze behaviour and brain activity were captured through synchronised eye-tracking and Electroencephalogram (EEG) recording devices. The psychophysiological data revealed individual differences in users’ Field dependence-independence (FDI) visuospatial attention, saccadic and fixation eye movements, creativity and reaction time in perceptual bistability. Differences in reaction time in the ambiguous figure, normed and second interpretation conditions were found among the FDI visuospatial groups in the Occipital and Frontal brain regions.
