Checking the Saliency of the Stimuli on Central versus Peripheral Visual Field

Abstract

Saliency of the stimuli presumably plays a critical role in vision rehabilitation. This study sought to determine whether a peripheral or near central target influenced the peak velocity of convergence which may have an impact on visual saliency. Blue line stimuli, one without any distracting peripheral background and two with distracting background were given to four subjects within a haploscope setting. Eye movements were recorded with an infrared video camera system. Data were quantified using latency, amplitude, and peak velocity. Although a consistent decrease in peak velocity was observed statistical differences were not (p=0.13). The results suggest distraction does not significantly influence convergence step peak velocity. Future experiments include the study of other visual distracters.