N170 and P250 Evoked by Silent Reading Tasks in Hebrew

Abstract

To investigate the visual processing of the abjad writing, event-related potentials (ERPs) were recorded while four native speakers of Hebrew silently read the eight stimuli in Table 2. The results of our preliminary experiment (Ikeda et al. 2014) focusing on the potential of N170 were replicated only partially in this experiment, but we found that the stimuli with vowel points produced a larger potential difference between N170 and P250 than the ones without vowel points and that stimuli consisting of a single graphic unit produced a larger potential difference between N170 and P250 than the ones containing two units. These findings suggest that the potential difference between N170 and P250 reflects a physical quantity (with or without vowel points) and a cognitive quantity (the number of units) of a visual stimulus.