The influence of self-experienced iconic finger-postures on numerical processing: Hemispheric asymmetries in semantic integration

IF 2.1 3区心理学 Q2 PSYCHOLOGY, EXPERIMENTAL

Consciousness and Cognition Pub Date : 2025-03-08 DOI:10.1016/j.concog.2025.103838

Andrea Adriano , Michaël Vande Velde

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引用次数: 0

Abstract

Embodied cognition theories suggest that abstract concepts, like numbers, are understood through the sensory-motor system. Iconic finger gestures have been shown to facilitate number processing, implying a shared semantic code between finger and Arabic numeral representations. This study used the Divided Visual Field paradigm to investigate where this cross-modal priming occurs in the brain. Twenty-four participants identified Arabic digits (2–3–4) by pressing a key with one hand, while their non-responding hand remained in a canonical (culturally-typical) or non-canonical finger posture. Results revealed faster reaction times in the left hemisphere when the hand was in a canonical posture but only when bodily and visual information matched within the same hemisphere. No semantic priming was observed in the right hemisphere, highlighting a hemispheric asymmetry in integrating finger-numeral and Arabic-digit representations. These findings demonstrate a clear left-hemispheric specialization in the semantic integration of finger and numeral representations, at least for small numbers.

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来源期刊

Consciousness and Cognition PSYCHOLOGY, EXPERIMENTAL-

CiteScore

4.30

自引率

8.30%

发文量

123

期刊介绍： Consciousness and Cognition: An International Journal provides a forum for a natural-science approach to the issues of consciousness, voluntary control, and self. The journal features empirical research (in the form of regular articles and short reports) and theoretical articles. Integrative theoretical and critical literature reviews, and tutorial reviews are also published. The journal aims to be both scientifically rigorous and open to novel contributions.