Asymmetric projections of the arcuate fasciculus to the temporal cortex underlie lateralized language function in the human brain

Takaya, Satoshi; Kuperberg, Gina R.; Liu, Hesheng; Greve, Douglas N.; Makris, Nikos; Stufflebeam, Steven M.

doi:10.3389/fnana.2015.00119

Cited by 34 publications

(41 citation statements)

References 65 publications

(95 reference statements)

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“…We observed distinct differences in the inferior parietal cortex around the supra-marginal gyrus, the lateral temporal cortex, and in the lateral frontal cortex. Takaya et al (2015) showed in a study group of right-handers, that functional connectivity along the arcuate fasciculus is asymmetric. Similar to Takaya et al (2015), our results also show the highest displacement for right-handers in the inferior parietal cortex and the lateral temporal cortex.…”

Section: Discussionmentioning

confidence: 99%

“…Takaya et al (2015) showed in a study group of right-handers, that functional connectivity along the arcuate fasciculus is asymmetric. Similar to Takaya et al (2015), our results also show the highest displacement for right-handers in the inferior parietal cortex and the lateral temporal cortex. This indicates that our functional alignment approach reveals the functional variability in language related regions.…”

Section: Discussionmentioning

confidence: 99%

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Diffeomorphic functional brain surface alignment: Functional demons

et al. 2017

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Aligning brain structures across individuals is a central prerequisite for comparative neuroimaging studies. Typically, registration approaches assume a strong association between the features used for alignment, such as macro-anatomy, and the variable observed, such as functional activation or connectivity. Here, we propose to use the structure of intrinsic resting state fMRI signal correlation patterns as a basis for alignment of the cortex in functional studies. Rather than assuming the spatial correspondence of functional structures between subjects, we have identified locations with similar connectivity profiles across subjects. We mapped functional connectivity relationships within the brain into an embedding space, and aligned the resulting maps of multiple subjects. We then performed a diffeomorphic alignment of the cortical surfaces, driven by the corresponding features in the joint embedding space. Results show that functional alignment based on resting state fMRI identifies functionally homologous regions across individuals with higher accuracy than alignment based on the spatial correspondence of anatomy. Further, functional alignment enables measurement of the strength of the anatomo-functional link across the cortex, and reveals the uneven distribution of this link. Stronger anatomo-functional dissociation was found in higher association areas compared to primary sensory- and motor areas. Functional alignment based on resting state features improves group analysis of task based functional MRI data, increasing statistical power and improving the delineation of task-specific core regions. Finally, a comparison of the anatomo-functional dissociation between cohorts is demonstrated with a group of left and right handed subjects.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Diffeomorphic functional brain surface alignment: Functional demons

et al. 2017

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“…B. Cortical projection of tractography calculated by the surface-based analysis. Used with permission (29). …”

Section: Figmentioning

confidence: 99%

“…Takaya et al evaluated the tractography and its cortical projections by using surface-based analysis in healthy subjects (Fig. 4), and showed the asymmetric distribution of the arcuate fasciculus projections in the inferior parietal and lateral temporal cortices, extended more in the left than the right hemisphere (29). …”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have demonstrated that the structural connectivity networks are associated with or predictive of the functional connectivity networks in healthy subjects (26) and patients with temporal lobe epilepsy (30). Takaya et al compared the structural, functional connectivity and regional BOLD activation, derived from DTI tractography, resting-state fMRI and task-based fMRI, respectively, and demonstrated the asymmetry overlaps in the left posterior temporal and parietal region in the right-handed healthy subjects (29). Integrated estimation incorporating both structural and functional aspects of the language network may provide reliable lateralization information in presurgical evaluation of epileptic patients.…”

Section: Introductionmentioning

confidence: 99%

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Presurgical Mapping of the Language Network Using Resting-state Functional Connectivity

Tanaka

Stufflebeam

2016

Topics in Magnetic Resonance Imaging

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Resting-state functional magnetic resonance imaging (Resting-state fMRI) is a tool for investigating the functional networks that arise during the resting-state of the brain. Recent advances of the resting-state fMRI analysis suggest its feasibility for evaluating language function. The most common clinical application is for presurgical mapping of cortex for a brain tumor or for resective epilespy surgery. In this article, we review the techniques and presurgical applications of resting-state fMRI analysis for language evaluation, and discuss the use in the clinical setting, focusing on planning for neurosurgery.

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What's your name again? A review of the superior longitudinal and arcuate fasciculus evolving nomenclature

2021

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Studies of the superior longitudinal fasciculus (SLF) have multiplied in recent decades owing to methodological advances, but the absence of a convention for nomenclature remains a source of confusion. Here, we have reviewed existing nomenclatures in the context of the research studies that generated them and we have identified their agreements and disagreements. A literature search was conducted using PubMed/MEDLINE, Web‐of‐Science, Embase, and a review of seminal publications, without restrictions regarding publication date. Our search revealed that diffusion imaging, autoradiography, and fiber dissection have been the main methods contributing to tract designation. The first two have been particularly influential in systematizing the horizontal elements distant from the lateral sulcus. Twelve approaches to naming were identified, eight of them differing considerably from each other. The terms SLF and arcuate fasciculus (AF) were often used as synonyms until the second half of the 20th century. During the last 15 years, this has ceased to be the case in a growing number of publications. The term AF has been used to refer to the assembly of three different segments, or exclusively to long frontotemporal fibers. Similarly, the term SLF has been employed to denote the whole superior longitudinal associative system, or only the horizontal frontoparietal parts. As only partial correspondence can be identified among the available nomenclatures, and in the absence of an official designation of all anatomical structures that can be encountered in clinical practice, a high level of vigilance regarding the effectiveness of every oral or written act of communication is mandatory.

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Asymmetric projections of the arcuate fasciculus to the temporal cortex underlie lateralized language function in the human brain

Cited by 34 publications

References 65 publications

Diffeomorphic functional brain surface alignment: Functional demons

Diffeomorphic functional brain surface alignment: Functional demons

Presurgical Mapping of the Language Network Using Resting-state Functional Connectivity

What's your name again? A review of the superior longitudinal and arcuate fasciculus evolving nomenclature

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