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Related Experiment Video

Updated: Jul 9, 2026

Central and Divided Visual Field Presentation of Emotional Images to Measure Hemispheric Differences in Motivated Attention

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Priming of strong semantic relations in the left and right visual fields: a time-course investigation.

Christine Chiarello¹, Stella Liu, Connie Shears

¹Department of Psychology, University of California, Riverside, CA 92521, USA. christine.chiarello@ucr.edu

Neuropsychologia

|February 20, 2003

Summary

This summary is machine-generated.

This study investigated semantic priming in word processing. Findings suggest a right hemisphere priming lag is minimal when using highly related word pairs.

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Area of Science:

Cognitive Neuroscience
Psycholinguistics
Neuroscience

Background:

Cerebral asymmetries in word processing, specifically semantic priming, have been inconsistently reported regarding hemisphere differences in onset and duration.
Previous research has explored time-course effects of semantic priming but yielded varied results, particularly concerning hemispheric involvement.

Purpose of the Study:

To investigate the time course of semantic priming effects using highly related word pairs.
To examine potential hemispheric differences in semantic priming onset and duration.
To clarify the role of the right hemisphere in semantic priming under specific experimental conditions.

Main Methods:

Utilized a lexical decision priming paradigm with strongly related word pairs (e.g., arm-leg).
Employed a range of prime-target stimulus onset asynchronies (SOAs) from 150 ms to 800 ms.
Analyzed priming effects across different SOAs to determine temporal and hemispheric characteristics.

Main Results:

Very weak evidence for a left visual field (LVF) priming lag was observed at the shortest SOA (150 ms).
Priming effects were found to be bilateral at moderately long SOAs (e.g., 800 ms).
The data suggest that any right hemisphere priming lag is a very small effect when using highly semantically similar word pairs.

Conclusions:

The findings challenge the notion of a significant right hemisphere priming lag in word processing, especially with closely related semantic associates.
Semantic priming appears to be largely bilateral at later processing stages, irrespective of the specific word pair relatedness used in this paradigm.
Future research should consider the impact of semantic relatedness strength on observed hemispheric asymmetries in priming.