Gradient Organization of Space, Time, and Numbers in the Brain: A Meta-analysis of Neuroimaging Studies.

IF 5.4 2区 心理学 Q1 NEUROSCIENCES
Neuropsychology Review Pub Date : 2024-09-01 Epub Date: 2023-08-18 DOI:10.1007/s11065-023-09609-z
Giorgia Cona, Martin Wiener, Francesco Allegrini, Cristina Scarpazza
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Abstract

In this study, we ran a meta-analysis of neuroimaging studies to pinpoint the neural regions that are commonly activated across space, time, and numerosity, and we tested the existence of gradient transitions among these magnitude representations in the brain. Following PRISMA guidelines, we included in the meta-analysis 112 experiments (for space domain), 114 experiments (time domain), and 115 experiments (numerosity domain), and we used the activation likelihood estimation method. We found a system of brain regions that was commonly recruited in all the three magnitudes, which included bilateral insula, the supplementary motor area (SMA), the right inferior frontal gyrus, and bilateral intraparietal sulci. Gradiental transitions between different magnitudes were found along all these regions but insulae, with space and numbers leading to gradients mainly over parietal regions (and SMA) whereas time and numbers mainly over frontal regions. These findings provide evidence for the GradiATOM theory (Gradient Theory of Magnitude), suggesting that spatial proximity given by overlapping activations and gradients is a key aspect for efficient interactions and integrations among magnitudes.

Abstract Image

大脑中空间、时间和数字的梯度组织:神经成像研究的元分析》。
在本研究中,我们对神经影像学研究进行了荟萃分析,以确定在空间、时间和数值领域中普遍被激活的神经区域,并检验了大脑中这些幅度表征之间是否存在梯度转换。根据 PRISMA 指南,我们在荟萃分析中纳入了 112 项实验(空间域)、114 项实验(时间域)和 115 项实验(数值域),并使用了激活似然估计法。我们发现了一个在所有三个量级中被普遍招募的脑区系统,其中包括双侧岛叶、辅助运动区(SMA)、右侧额叶下回和双侧顶内沟。除岛叶外,所有这些区域都存在不同量级之间的梯度转换,空间和数字主要导致顶叶区域(和 SMA)的梯度转换,而时间和数字则主要导致额叶区域的梯度转换。这些发现为 "幅度梯度理论"(GradiATOM)提供了证据,表明重叠激活和梯度所带来的空间接近性是幅度间有效互动和整合的一个关键方面。
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来源期刊
Neuropsychology Review
Neuropsychology Review 医学-神经科学
CiteScore
11.00
自引率
1.70%
发文量
36
期刊介绍: Neuropsychology Review is a quarterly, refereed publication devoted to integrative review papers on substantive content areas in neuropsychology, with particular focus on populations with endogenous or acquired conditions affecting brain and function and on translational research providing a mechanistic understanding of clinical problems. Publication of new data is not the purview of the journal. Articles are written by international specialists in the field, discussing such complex issues as distinctive functional features of central nervous system disease and injury; challenges in early diagnosis; the impact of genes and environment on function; risk factors for functional impairment; treatment efficacy of neuropsychological rehabilitation; the role of neuroimaging, neuroelectrophysiology, and other neurometric modalities in explicating function; clinical trial design; neuropsychological function and its substrates characteristic of normal development and aging; and neuropsychological dysfunction and its substrates in neurological, psychiatric, and medical conditions. The journal''s broad perspective is supported by an outstanding, multidisciplinary editorial review board guided by the aim to provide students and professionals, clinicians and researchers with scholarly articles that critically and objectively summarize and synthesize the strengths and weaknesses in the literature and propose novel hypotheses, methods of analysis, and links to other fields.
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