Parafoveal preview effects depend on both preview plausibility and target predictability.

Area of Science:

• Cognitive Psychology
• Psycholinguistics
• Reading Science

Background:

• Readers utilize parafoveal information for efficient sentence processing.
• The plausibility preview effect suggests parafoveal words aid reading when they fit sentence context.
• Prior research indicates this effect is independent of semantic or orthographic similarity.

Purpose of the Study:

• To investigate the role of contextual constraint in the parafoveal preview effect.
• To determine how target word predictability influences the benefit derived from parafoveal previews.
• To examine the interaction between contextual predictability and preview plausibility.

Main Methods:

• Utilized the boundary paradigm to present parafoveal previews.
• Recorded participants' eye movements during sentence reading.
• Compared processing of predictable, unpredictable, and implausible target words with different previews.

Main Results:

• Target word predictability significantly modulated parafoveal preview effects.
• Identical previews were more beneficial than plausible previews for highly predictable targets.
• Plausible previews were as beneficial as identical previews for unpredictable targets.

Conclusions:

• Contextual predictability plays a crucial role in early lexical processing during reading.
• Readers pre-activate contextually appropriate word candidates before encountering the target word.
• The findings support models of predictive reading and context-driven word recognition.