Orthographic learning in adults through overt and covert reading

Area of Science:

• Cognitive Psychology
• Educational Psychology
• Neuroscience of Reading

Background:

• Fluent reading and writing depend on robust orthographic representations in memory.
• The self-teaching hypothesis posits that children develop orthographic representations via phonological decoding.
• The role of phonological decoding in adult orthographic learning remains less understood.

Purpose of the Study:

• To investigate the extent to which phonological decoding aids orthographic learning in adult readers.
• To compare orthographic learning during overt (aloud) versus covert (silent) reading.
• To examine the impact of concurrent articulation on covert reading and subsequent learning in adults.

Main Methods:

• Two experiments involved English-speaking undergraduates reading monosyllabic and multisyllabic pseudowords.
• Reading conditions included overt (aloud) and covert (silent) reading, with concurrent articulation manipulated in Experiment 2.
• Orthographic learning was assessed one week later using recognition, spelling, and naming tasks.

Main Results:

• Overt reading, utilizing phonological decoding, resulted in superior pseudoword recognition and recall compared to silent reading.
• Concurrent articulation during covert reading did not impair learning outcomes in adult participants.
• Findings suggest adults may employ alternative strategies like direct orthographic processing or lexicalized phonological decoding during covert reading.

Conclusions:

• Phonological decoding during overt reading enhances orthographic learning in adults.
• Adult readers demonstrate flexibility in covert reading, potentially relying more on visual or direct lexical routes.
• Reading mechanisms appear to shift from phonology-based to visually-based as orthographic knowledge increases.