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Related Experiment Video

Updated: Sep 28, 2025

Examining Bilingual Language Control Using the Stroop Task

Examining Bilingual Language Control Using the Stroop Task

Published on: February 26, 2020

Task and information conflicts in the numerical Stroop task.

Ronen Hershman^1,2, Lisa Beckmann³, Avishai Henik^2,4

¹Department of Cognitive and Brain Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.

Psychophysiology

|March 30, 2022

Summary

This summary is machine-generated.

This study extends Stroop task research to numerical comparisons. Findings show similar early task and later information conflicts, using reaction time and pupil responses.

Keywords:

cognitive control information conflict numerical cognition pupillometry task conflict

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Area of Science:

Cognitive Psychology
Neuroscience

Background:

The Stroop color-word task reveals two conflict types: early task conflict and late information conflict.
Pupil measurements alongside reaction time (RT) enhance understanding of these cognitive conflicts.

Purpose of the Study:

To investigate if cognitive conflicts observed in the Stroop color-word task generalize to numerical comparative judgments.
To explore the underlying processes in the numerical Stroop task using behavioral and physiological measures.

Main Methods:

Two experiments were conducted using a numerical Stroop task paradigm.
Data collected included reaction times (RT) and pupillometry to measure cognitive processing and conflict.

Main Results:

A dissociation between RT and pupillometry was observed, mirroring findings from the color-word Stroop task.
Evidence supports an early task conflict followed by a later information conflict in numerical processing.

Conclusions:

The cognitive conflict mechanisms identified in the Stroop color-word task are generalizable to numerical comparative judgments.
Pupillometry provides valuable insights into the temporal dynamics of cognitive conflicts in numerical tasks.