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Related Experiment Video

Updated: May 30, 2026

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

Depth of conceptual knowledge modulates visual processes during word reading.

Milena Rabovsky¹, Werner Sommer, Rasha Abdel Rahman

¹Department of Psychology, Humboldt-Universität zu Berlin, Rudower Chaussee 18, 12489 Berlin, Germany. milena.rabovsky@hu-berlin.de

Journal of Cognitive Neuroscience

|August 25, 2011

Summary

Conceptual knowledge influences early visual processing of objects and their names. This study shows that meaning impacts visual word recognition as early as 120 milliseconds, affecting perceptual processing.

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Area of Science:

Cognitive Neuroscience
Visual Perception
Psycholinguistics

Background:

Conceptual knowledge is known to influence object recognition.
The impact of conceptual knowledge on the recognition of object names, particularly the visual processing of written words, is less understood.

Purpose of the Study:

To investigate whether conceptual knowledge modulates early visual processing stages for object names.
To determine if the timing of these modulations differs between object recognition and written name recognition.

Main Methods:

A learning paradigm was used to familiarize participants with unfamiliar visual objects.
The amount of information about object features was manipulated while controlling for perceptual properties.
Electroencephalography (EEG) was employed during a test session to record brain activity during object and written name recognition tasks.

Main Results:

Knowledge effects on object recognition were observed.
Similar knowledge-dependent modulations were found for the recognition of object names.
These effects occurred early, around 120 milliseconds, within the P1 component of the event-related potential (ERP).

Conclusions:

Conceptual knowledge significantly modulates early visual processing for both objects and their written names.
This suggests that meaning influences the perception of visual word features at surprisingly early stages of visual word recognition.
The findings highlight the rapid integration of semantic information during reading.