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Journal Hum Brain Mapp

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A method to remove the influence of fixative concentration on postmortem T2 maps using a kinetic tensor model.

Benjamin C Tendler, Feng Qi, Sean Foxley, Menuka Pallebage-Gamarallage, Ricarda A L Menke, Olaf Ansorge, Samuel A Hurley, Karla L Miller,

Formalin fixation has been shown to substantially reduce T<sub>2</sub> estimates, primarily driven by the presence of fixative in tissue. Prior to scanning, post-mortem samples are often placed into a fluid that has more favourable imaging properties. This study investigates whether there is evidence for a change in T<sub>2</sub> in regions ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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Updating the dual-mechanism model for cross-sensory attentional spreading: The influence of space-based visual selective attention.

Song Zhao, Yang Li, Chongzhi Wang, Chengzhi Feng, Wenfeng Feng,

Selective attention to visual stimuli can spread cross-modally to task-irrelevant auditory stimuli through either the stimulus-driven binding mechanism or the representation-driven priming mechanism. The stimulus-driven attentional spreading occurs whenever a task-irrelevant sound is delivered simultaneously with a spatially attended visual stimulus, whereas the representation-driven attentional spreading occurs only when the ... Read more >>

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[2021, :]

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Group-guided individual functional parcellation of the hippocampus and application to normal aging.

Jiang Zhang, Dundi Xu, Hongjie Cui, Tianyu Zhao, Congying Chu, Jiaojian Wang,

Aging is closely associated with cognitive decline affecting attention, memory and executive functions. The hippocampus is the core brain area for human memory, learning, and cognition processing. To delineate the individual functional patterns of hippocampus is pivotal to reveal the neural basis of aging. In this study, we developed a ... Read more >>

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[2021, :]

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Nucleus accumbens projections: Validity and reliability of fiber reconstructions based on high-resolution diffusion-weighted MRI.

Thilo Rusche, Jörn Kaufmann, Jürgen Voges,

Clinical effects of deep brain stimulation are largely mediated by the activation of myelinated axons. Hence, increasing attention has been paid in the past on targeting white matter tracts in addition to gray matter. Aims of the present study were: (i) visualization of discrete afferences and efferences of the nucleus ... Read more >>

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[2021, :]

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Age of onset modulates resting-state brain network dynamics in Friedreich Ataxia.

Gilles Naeije, Nicolas Coquelet, Vincent Wens, Serge Goldman, Massimo Pandolfo, Xavier De Tiège,

This magnetoencephalography (MEG) study addresses (i) how Friedreich ataxia (FRDA) affects the sub-second dynamics of resting-state brain networks, (ii) the main determinants of their dynamic alterations, and (iii) how these alterations are linked with FRDA-related changes in resting-state functional brain connectivity (rsFC) over long timescales. For that purpose, 5 min of ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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Fully automated delineation of the optic radiation for surgical planning using clinically feasible sequences.

Lee B Reid, Eloy Martínez-Heras, Jose V Manjón, Rosalind L Jeffree, Hamish Alexander, Julie Trinder, Elisabeth Solana, Sara Llufriu, Stephen Rose, Marita Prior, Jurgen Fripp,

Quadrantanopia caused by inadvertent severing of Meyer's Loop of the optic radiation is a well-recognised complication of temporal lobectomy for conditions such as epilepsy. Dissection studies indicate that the anterior extent of Meyer's Loop varies considerably between individuals. Quantifying this for individual patients is thus an important step to improve ... Read more >>

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[2021, :]

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Validating dynamicity in resting state fMRI with activation-informed temporal segmentation.

Marlena Duda, Danai Koutra, Chandra Sripada,

Confirming the presence (or absence) of dynamic functional connectivity (dFC) states during rest is an important open question in the field of cognitive neuroscience. The prevailing dFC framework aims to identify dynamics directly from connectivity estimates with a sliding window approach, however this method suffers from several drawbacks including sensitivity ... Read more >>

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[2021, :]

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Aberrant functional brain network dynamics in patients with functional constipation.

Tao Yin, Zhaoxuan He, Peihong Ma, Ruirui Sun, Kunnan Xie, Tianyu Liu, Li Chen, Jingwen Chen, Likai Hou, Yuke Teng, Yuyi Guo, Zilei Tian, Jing Xiong, Fumin Wang, Shenghong Li, Sha Yang, Fang Zeng,

The aberrant static functional connectivity of brain network has been widely investigated in patients with functional constipation (FCon). However, the dynamics of brain functional connectivity in FCon patients remained unknown. This study aimed to detect the brain dynamics of functional connectivity states and network topological organizations of FCon patients and ... Read more >>

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[2021, :]

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Brain-wide inferiority and equivalence tests in fMRI group analyses: Selected applications.

Martin Fungisai Gerchen, Peter Kirsch, Gordon Benedikt Feld,

Null hypothesis significance testing is the major statistical procedure in fMRI, but provides only a rather limited picture of the effects in a data set. When sample size and power is low relying only on strict significance testing may lead to a host of false negative findings. In contrast, with ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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Neural mechanisms of pain processing differ between endurance athletes and nonathletes: A functional connectivity magnetic resonance imaging study.

Maria Geisler, Alexander Ritter, Marco Herbsleb, Karl-Jürgen Bär, Thomas Weiss,

Pain perception and the ability to modulate arising pain vary tremendously between individuals. It has been shown that endurance athletes possess higher pain tolerance thresholds and a greater effect of conditioned pain modulation than nonathletes, both indicating a more efficient system of endogenous pain inhibition. The aim of the present ... Read more >>

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[2021, :]

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Who initiates punishment, who joins punishment? Disentangling types of third-party punishers by neural traits.

Thomas Baumgartner, Jan Hausfeld, Miguel Dos Santos, Daria Knoch,

The act of punishing unfair behavior by unaffected observers (i.e., third-party punishment) is a crucial factor in the functioning of human societies. In everyday life, we see different types of individuals who punish. While some individuals initiate costly punishment against an unfair person independently of what other observers do (independent ... Read more >>

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[2021, :]

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A meta-analysis of deep brain structural shape and asymmetry abnormalities in 2,833 individuals with schizophrenia compared with 3,929 healthy volunteers via the ENIGMA Consortium.

Boris A Gutman, Theo G M van Erp, Kathryn Alpert, Christopher R K Ching, Dmitry Isaev, Anjani Ragothaman, Neda Jahanshad, Arvin Saremi, Artemis Zavaliangos-Petropulu, David C Glahn, Li Shen, Shan Cong, Dag Alnaes, Ole Andreas Andreassen, Nhat Trung Doan, Lars T Westlye, Peter Kochunov, Theodore D Satterthwaite, Daniel H Wolf, Alexander J Huang, Charles Kessler, Andrea Weideman, Dana Nguyen, Bryon A Mueller, Lawrence Faziola, Steven G Potkin, Adrian Preda, Daniel H Mathalon, Juan Bustillo, Vince Calhoun, Judith M Ford, Esther Walton, Stefan Ehrlich, Giuseppe Ducci, Nerisa Banaj, Fabrizio Piras, Federica Piras, Gianfranco Spalletta, Erick J Canales-Rodríguez, Paola Fuentes-Claramonte, Edith Pomarol-Clotet, Joaquim Radua, Raymond Salvador, Salvador Sarró, Erin W Dickie, Aristotle Voineskos, Diana Tordesillas-Gutiérrez, Benedicto Crespo-Facorro, Esther Setién-Suero, Jacqueline Mayoral van Son, Stefan Borgwardt, Fabienne Schönborn-Harrisberger, Derek Morris, Gary Donohoe, Laurena Holleran, Dara Cannon, Colm McDonald, Aiden Corvin, Michael Gill, Geraldo Busatto Filho, Pedro G P Rosa, Mauricio H Serpa, Marcus V Zanetti, Irina Lebedeva, Vasily Kaleda, Alexander Tomyshev, Tim Crow, Anthony James, Simon Cervenka, Carl M Sellgren, Helena Fatouros-Bergman, Ingrid Agartz, Fleur Howells, Dan J Stein, Henk Temmingh, Anne Uhlmann, Greig I de Zubicaray, Katie L McMahon, Margie Wright, Derin Cobia, John G Csernansky, Paul M Thompson, Jessica A Turner, Lei Wang,

Schizophrenia is associated with widespread alterations in subcortical brain structure. While analytic methods have enabled more detailed morphometric characterization, findings are often equivocal. In this meta-analysis, we employed the harmonized ENIGMA shape analysis protocols to collaboratively investigate subcortical brain structure shape differences between individuals with schizophrenia and healthy control participants. ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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Automated claustrum segmentation in human brain MRI using deep learning.

Hongwei Li, Aurore Menegaux, Benita Schmitz-Koep, Antonia Neubauer, Felix J B Bäuerlein, Suprosanna Shit, Christian Sorg, Bjoern Menze, Dennis Hedderich,

In the last two decades, neuroscience has produced intriguing evidence for a central role of the claustrum in mammalian forebrain structure and function. However, relatively few in vivo studies of the claustrum exist in humans. A reason for this may be the delicate and sheet-like structure of the claustrum lying ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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A simple permutation-based test of intermodal correspondence.

Sarah M Weinstein, Simon N Vandekar, Azeez Adebimpe, Tinashe M Tapera, Timothy Robert-Fitzgerald, Ruben C Gur, Raquel E Gur, Armin Raznahan, Theodore D Satterthwaite, Aaron F Alexander-Bloch, Russell T Shinohara,

Many key findings in neuroimaging studies involve similarities between brain maps, but statistical methods used to measure these findings have varied. Current state-of-the-art methods involve comparing observed group-level brain maps (after averaging intensities at each image location across multiple subjects) against spatial null models of these group-level maps. However, these ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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A comparative study between state-of-the-art MRI deidentification and AnonyMI, a new method combining re-identification risk reduction and geometrical preservation.

Ezequiel Mikulan, Simone Russo, Flavia Maria Zauli, Piergiorgio d'Orio, Sara Parmigiani, Jacopo Favaro, William Knight, Silvia Squarza, Pierluigi Perri, Francesco Cardinale, Pietro Avanzini, Andrea Pigorini,

Deidentifying MRIs constitutes an imperative challenge, as it aims at precluding the possibility of re-identification of a research subject or patient, but at the same time it should preserve as much geometrical information as possible, in order to maximize data reusability and to facilitate interoperability. Although several deidentification methods exist, ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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Predicting brain age during typical and atypical development based on structural and functional neuroimaging.

Qi Wang, Ke Hu, Meng Wang, Yuxin Zhao, Yong Liu, Lingzhong Fan, Bing Liu,

Exploring typical and atypical brain developmental trajectories is very important for understanding the normal pace of brain development and the mechanisms by which mental disorders deviate from normal development. A precise and sex-specific brain age prediction model is desirable for investigating the systematic deviation and individual heterogeneity of disorders associated ... Read more >>

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[2021, :]

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The regional effect of serum hormone levels on cerebral blood flow in healthy nonpregnant women.

Samantha Cote, Russell Butler, Vincent Michaud, Eric Lavallee, Etienne Croteau, Adrianna Mendrek, Jean-Francois Lepage, Kevin Whittingstall,

Sex hormones estrogen (EST) and progesterone (PROG) have received increased attention for their important physiological action outside of reproduction. While studies have shown that EST and PROG have significant impacts on brain function, their impact on the cerebrovascular system in humans remains largely unknown. To address this, we used a ... Read more >>

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[2021, :]

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Neuroimaging measures of iron and gliosis explain memory performance in aging.

Anu Venkatesh, Ana M Daugherty, Ilana J Bennett,

Evidence from animal and histological studies has indicated that accumulation of iron in the brain results in reactive gliosis that contributes to cognitive deficits. The current study extends these findings to human cognitive aging and suggests that magnetic resonance imaging (MRI) techniques like quantitative relaxometry can be used to study ... Read more >>

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[2021, :]

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The impact of dopaminergic treatment over cognitive networks in Parkinson's disease: Stemming the tide?

Ignacio Aracil-Bolaños, Frederic Sampedro, Jesus Pujol, Carles Soriano-Mas, José María Gónzalez-de-Echávarri, Jaime Kulisevsky, Javier Pagonabarraga,

Dopamine-replacing therapies are an effective treatment for the motor aspects of Parkinson's disease. However, its precise effect over the cognitive resting-state networks is not clear; whether dopaminergic treatment normalizes their functional connectivity-as in other networks- and the links with cognitive decline are presently unknown. We recruited 35 nondemented PD patients ... Read more >>

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[2021, :]

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Spatiotemporal changes in diffusivity and anisotropy in fetal brain tractography.

Fedel Machado-Rivas, Onur Afacan, Shadab Khan, Bahram Marami, Clemente Velasco-Annis, Hart Lidov, Simon K Warfield, Ali Gholipour, Camilo Jaimes,

Population averaged diffusion atlases can be utilized to characterize complex microstructural changes with less bias than data from individual subjects. In this study, a fetal diffusion tensor imaging (DTI) atlas was used to investigate tract-based changes in anisotropy and diffusivity in vivo from 23 to 38 weeks of gestational age (GA). ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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Development of the visual white matter pathways mediates development of electrophysiological responses in visual cortex.

Sendy Caffarra, Sung Jun Joo, David Bloom, John Kruper, Ariel Rokem, Jason D Yeatman,

The latency of neural responses in the visual cortex changes systematically across the lifespan. Here, we test the hypothesis that development of visual white matter pathways mediates maturational changes in the latency of visual signals. Thirty-eight children participated in a cross-sectional study including diffusion magnetic resonance imaging (MRI) and magnetoencephalography ... Read more >>

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[2021, :]

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Gray matter asymmetry in asymptomatic carotid stenosis.

Lei Gao, Yaqiong Xiao, Haibo Xu,

Even clinically "asymptomatic" carotid stenosis is associated with multidomain cognitive impairment, gray matter (GM) atrophy, and silent lesion. However, the links between them remain unclear. Using structural MRI data, we examined GM asymmetry index (AI) and white matter hyperintensity (WMH) in 24 patients with severe asymptomatic carotid stenosis (SACS), 24 ... Read more >>

Hum Brain Mapp (Human brain mapping)
[2021, :]

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The nature of the self: Neural analyses and heritability estimates of self-evaluations in middle childhood.

Lina van Drunen, Simone Dobbelaar, Renske van der Cruijsen, Mara van der Meulen, Michelle Achterberg, Lara M Wierenga, Eveline A Crone,

How neural correlates of self-concept are influenced by environmental versus genetic factors is currently not fully understood. We investigated heritability estimates of behavioral and neural correlates of self-concept in middle childhood since this phase is an important time window for taking on new social roles in academic and social contexts. ... Read more >>

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[2021, :]

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Cortical network organization reflects clinical response to subthalamic nucleus deep brain stimulation in Parkinson's disease.

Martina Bočková, Eva Výtvarová, Martin Lamoš, Petr Klimeš, Pavel Jurák, Josef Halámek, Sabina Goldemundová, Marek Baláž, Ivan Rektor,

The degree of response to subthalamic nucleus deep brain stimulation (STN-DBS) is individual and hardly predictable. We hypothesized that DBS-related changes in cortical network organization are related to the clinical effect. Network analysis based on graph theory was used to evaluate the high-density electroencephalography (HDEEG) recorded during a visual three-stimuli ... Read more >>

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[2021, :]

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Individual differences in representational similarity of first and second languages in the bilingual brain.

Emily S Nichols, Yue Gao, Sofia Fregni, Li Liu, Marc F Joanisse,

Current theories of bilingualism disagree on the extent to which separate brain regions are used to maintain or process one's first and second language. The present study took a novel multivariate approach to address this question. We examined whether bilinguals maintain distinct neural representations of two languages; specifically, we tested ... Read more >>

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[2021, :]

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