Statistical learning of orthotactic constraints: Evidence from typing

Area of Science:

• Cognitive Science
• Linguistics
• Psychology

Background:

• Spoken language relies on phonotactic rules, while written language uses orthotactic rules.
• Adults can learn simple and complex phonotactic rules, but learning timelines vary.
• Understanding orthotactic rule learning is crucial for comprehending language production.

Purpose of the Study:

• To investigate the learning of parallel orthotactic rules in typing.
• To compare the learning timeline of orthotactic rules with phonotactic rules.
• To determine if orthotactic learning is influenced by phonological constraints.

Main Methods:

• Experiment 1: Assessed adult learning of first-order orthotactic constraints.
• Experiment 2: Examined adult learning of second-order orthotactic rules.
• Experiment 3: Investigated the relationship between phonotactic and orthotactic learning.

Main Results:

• Adults quickly learn first-order typing constraints, mirroring spoken language acquisition.
• Second-order orthotactic rules are learned with a similar timeline to phonotactic rules.
• Second-order constraints are learned for codas but not onsets, suggesting a chaining mechanism.
• Orthotactic learning is influenced by phonology but not reducible to it.

Conclusions:

• Statistical learning of orthotactic and phonotactic constraints shows significant similarities.
• Incremental learning principles appear to be domain-general across language modalities.
• This research highlights commonalities in how humans learn sequential constraints in language production.