Universal and particular in morphological processing: Evidence from Hebrew

Area of Science:

• Psycholinguistics
• Computational Linguistics
• Cognitive Science

Background:

• Semitic languages feature non-concatenative morphology, where word recognition relies on root and pattern decomposition.
• Previous research suggested Semitic language processing uniquely depends on morphological information.

Purpose of the Study:

• To investigate whether language-specific properties, like Hebrew's morphology, influence word processing mechanisms.
• To test the hypothesis of universal vs. language-specific word decomposition strategies.

Main Methods:

• A masked priming experiment was conducted using Hebrew verbs from two morphological classes: Paal (closed-class) and Piel (open-class).
• Priming effects were analyzed to determine if root decomposition occurs differently based on morphological class and productivity.

Main Results:

• Verbs from the productive Piel class elicited familiar root priming effects.
• Verbs from the non-productive Paal class did not show root priming effects.
• This indicates that root decomposition is not applied to non-productive verbal stems in Hebrew.

Conclusions:

• Hebrew word processing, particularly for non-productive verbal classes, does not rely on down-to-the-root decomposition.
• The findings suggest that the Semitic 'word processor' employs universal storage and computation mechanisms, similar to other languages.
• Language-specific morphological structures do not necessitate fundamentally different word processing mechanisms.