Neural Dynamics of Numerical Change: ERP Evidence for Directional and Magnitude-Specific Processing

Virtual · October 2025

Poster · Cognitive Neuroscience

Jean Ee Tang
Teachers College, Columbia University
Yuexin Li
Teachers College, Columbia University
Paul Smith
Mischa (Yuri) Gushiken
Teachers College, Columbia University
Cuiwei Lu
Kiren Bakhru
Morgan O'Donnell
Minjeong Park
Janiece Spitzmueller
Teachers College, Columbia University
Sadra Gerami
Teachers College, Columbia University
Ariana Olivares
Teachers College, Columbia University
Erin Kirby
Teachers College, Columbia University
Nick Bisbee
Johns Hopkins University
Peter Gordon
Teachers College, Columbia University

Abstract

This 128-channel EEG study examined neural responses to numerical change. Participants (n=24) viewed dot arrays (1–6) and responded to numerosity changes. Parietal ERP analyses revealed that decreasing changes and smaller quantities elicited shallower N1 components and earlier, higher P3b amplitudes, highlighting distinct neurocognitive processing of numerical magnitude and directionality.

Human Factors

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Neural Dynamics of Numerical Change: ERP Evidence for Directional and Magnitude-Specific Processing

Abstract

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