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Related Experiment Video

Updated: Jul 11, 2025

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology

Published on: June 29, 2021

Positional encoding of morphemes in visual word recognition.

Jasmine Spencer¹, Hasibe Kahraman¹, Elisabeth Beyersmann¹

¹School of Psychological Sciences, Macquarie University.

Journal of Experimental Psychology. Learning, Memory, and Cognition

|November 16, 2023

Summary

Reading complex words involves morpheme analysis. This study found stems are position-independent, while prefixes and suffixes are position-dependent, with semantic transparency influencing effects.

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Area of Science:

Cognitive Psychology
Psycholinguistics
Neuroscience of Language

Background:

Morphological processing is key to reading complex words.
Understanding positional constraints in morpheme recognition is crucial.
The role of semantics in morphological processing needs further investigation.

Purpose of the Study:

To compare positional encoding of stems versus affixes during reading.
To investigate the influence of semantic transparency on morpheme transposition effects.
To refine theoretical models of visual word recognition.

Main Methods:

Three unprimed lexical decision experiments.
Analysis of transposed compound, suffixed, and prefixed words.
Comparison of semantically transparent and opaque word pairs.

Main Results:

Transposed compound words showed increased rejection difficulty.
No significant transposition effect for suffixed or prefixed words.
Larger morpheme transposition effects observed for semantically transparent compounds.

Conclusions:

Stems are encoded position-independently, while affixes are position-dependent.
Semantic transparency significantly modulates morpheme transposition effects.
Findings necessitate updated models of visual word recognition accounting for positional and semantic factors.