Abstract

Words are processed in the parafovea and fovea in succession during natural reading, but the classic rapid serial visual presentation (RSVP) paradigm presents words only in the fovea. Unlike the RSVP paradigm, the RSVP with flanker (RSVP-flanker) paradigm is similar to natural text reading. Previous studies using the RSVP-flanker paradigm have suggested that high-level semantic/syntactic integration engages foveal fixation after parafoveal semantic access. However, it is less clear how general cognitive processing, such as discrepancy monitoring and error correction, unfolds across the parafoveal and foveal visual fields. In the current study, Chinese sentences were presented with the RSVP-flanker paradigm. Critical words were manipulated so that they were expected (EXP), semantically violated (VIO), or orthographically similar (ORT). Because of the nuanced differences between the EXP and ORT conditions, the processing of ORT critical words required more general cognitive processing, such as discrepancy monitoring and error correction. In contrast, the processing of VIO words may require more semantic integration. The ERP results showed more positive foveal late positive component (LPC) in ORT versus VIO. Moreover, there was no parafoveal LPC effect, but a robust foveal LPC effect, in the contrasts of VIO/ORT versus EXP, replicating previous results. Together, the results provide substantial evidence that general cognitive processing for orthographic discrepancy occurs at the foveal perception.

Full Text
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