The neural representations underlying asymmetric cross‐modal prediction of words

Author:

Shi Liang1ORCID,Liu Chuqi1,Peng Xiaojing1,Cao Yifei1,Levy Daniel A.2,Xue Gui1

Affiliation:

1. State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research Beijing Normal University Beijing People's Republic of China

2. Baruch Ivcher School of Psychology Interdisciplinary Center Herzliya Herzliya Israel

Abstract

AbstractCross‐modal prediction serves a crucial adaptive role in the multisensory world, yet the neural mechanisms underlying this prediction are poorly understood. The present study addressed this important question by combining a novel audiovisual sequence memory task, functional magnetic resonance imaging (fMRI), and multivariate neural representational analyses. Our behavioral results revealed a reliable asymmetric cross‐modal predictive effect, with a stronger prediction from visual to auditory (VA) modality than auditory to visual (AV) modality. Mirroring the behavioral pattern, we found the superior parietal lobe (SPL) showed higher pattern similarity for VA than AV pairs, and the strength of the predictive coding in the SPL was positively correlated with the behavioral predictive effect in the VA condition. Representational connectivity analyses further revealed that the SPL mediated the neural pathway from the visual to the auditory cortex in the VA condition but was not involved in the auditory to visual cortex pathway in the AV condition. Direct neural pathways within the unimodal regions were found for the visual‐to‐visual and auditory‐to‐auditory predictions. Together, these results provide novel insights into the neural mechanisms underlying cross‐modal sequence prediction.

Funder

National Natural Science Foundation of China

Publisher

Wiley

Subject

Neurology (clinical),Neurology,Radiology, Nuclear Medicine and imaging,Radiological and Ultrasound Technology,Anatomy

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