Linguistic Illusions Guide Eye Movement: Evidence From Doubling

Area of Science:

• Linguistics
• Psycholinguistics
• Cognitive Science

Background:

• Phonological patterns exhibit cross-linguistic preferences, but their origin (abstract constraints vs. sensorimotor pressures) is debated.
• The linguistic phenomenon of doubling (e.g., XX) elicits conflicting responses depending on its linguistic role (phonology vs. morphology).

Purpose of the Study:

• To investigate whether phonological constraints on doubling operate "online" during language processing, specifically using eye movements.
• To determine if abstract linguistic constraints influence real-time language comprehension.

Main Methods:

• Experiment 1: Measured eye movements to assess fixation times on phonological forms with doubling versus non-doubling patterns.
• Experiment 2: Examined eye movements when doubling served a morphological function (plurality) versus a bare phonological form.

Main Results:

• In Experiment 1, bare phonological forms with doubling were dispreferred, indicated by shorter fixation durations.
• In Experiment 2, when doubling signaled morphological plurality, the aversion shifted to a preference, with longer fixation durations.

Conclusions:

• Phonological constraints on doubling are demonstrated to apply "online" during real-time language processing.
• The findings support the hypothesis that phonological knowledge is partly derived from abstract linguistic principles, not solely sensorimotor factors.