Filters








853 Hits in 6.4 sec

Connectivity-based localization of human hypothalamic nuclei in functional images of standard voxel size

Akitoshi Ogawa, Takahiro Osada, Masaki Tanaka, Koji Kamagata, Shigeki Aoki, Seiki Konishi
2020 NeuroImage  
Despite their critical roles in autonomic functions, individual hypothalamic nuclei have not been extensively investigated in humans using functional magnetic resonance imaging, partly due to the difficulty  ...  Voxels in the hypothalamus in standard resolution images from the Human Connectome Project (HCP) database that predominantly shared connectivity profiles with the same nucleus were subsequently identified  ...  Localization of hypothalamic nuclei The hypothalamus was delimitated manually based on the anatomical landmarks in the structural and functional images such as the AC, optic chiasm, third ventricle, globus  ... 
doi:10.1016/j.neuroimage.2020.117205 pmid:32735999 fatcat:7kz4p5g55zetnczlp3isjrvjbu

Connectivity of sleep- and wake-promoting regions of the human hypothalamus observed during resting wakefulness

Aaron D Boes, David Fischer, Joel C Geerling, Joel Bruss, Clifford B Saper, Michael D Fox
2018 Sleep  
Moreover, functional connectivity between these hypothalamic regions and the rest of the brain relates to patterns of regional sleep-wake differences previously observed in humans with functional imaging  ...  Next, we show that hypothalamic connectivity predicts a pattern of regional sleep-wake changes previously observed in humans.  ...  C.B.S. and J.C.G. helped to define the anatomical regions of interest. J.B. performed functional connectivity analyses. M.D.F. oversaw  ... 
doi:10.1093/sleep/zsy108 pmid:29850898 fatcat:bicomlb6frddbnkmjtaqw2vnzi

Volumetric parcellation methodology of the human hypothalamus in neuroimaging: Normative data and sex differences

Nikos Makris, Dick F. Swaab, Andre van der Kouwe, Brandon Abbs, Denise Boriel, Robert J. Handa, Stuart Tobet, Jill M. Goldstein
2013 NeuroImage  
structure, volume, connectivity, and function of hypothalamic regions represented at the level of its nuclei.  ...  Although different in histology, physiology, connections and function, multiple hypothalamic nuclei subserve non-voluntary functions and are nodal points for the purpose of maintaining homeostasis of the  ...  support in the use of the 7 T magnet at MGH, and Jonathan Kaiser, M.S. for help in image construction.  ... 
doi:10.1016/j.neuroimage.2012.12.008 pmid:23247186 pmcid:PMC3575213 fatcat:hv2c5rpvo5dolmh6jyzohvz3au

Hypothalamic BOLD response to glucose intake and hypothalamic volume are similar in anorexia nervosa and healthy control subjects

Anna M. van Opstal, Anna M. Westerink, Wouter M. Teeuwisse, Mirjam A. M. van der Geest, Eric F. van Furth, Jeroen van der Grond
2015 Frontiers in Neuroscience  
Structural MRI was used to determine differences in hypothalamic volume and local gray matter volume using manual segmentation and voxel-based morphometry.  ...  We used functional magnetic resonance imaging (MRI) to determine function of the hypothalamus in response to glucose.  ...  Voxel based morphometry analysis showed a decreased gray matter volume of the cingulate cortex in AN compared to controls.  ... 
doi:10.3389/fnins.2015.00159 pmid:25999808 pmcid:PMC4419717 fatcat:db2dl4olm5fpvkoomcnbetmb3i

Lateral–Medial Dissociation in Orbitofrontal Cortex–Hypothalamus Connectivity

Satoshi Hirose, Takahiro Osada, Akitoshi Ogawa, Masaki Tanaka, Hiroyuki Wada, Yasunori Yoshizawa, Yoshio Imai, Toru Machida, Masaaki Akahane, Ichiro Shirouzu, Seiki Konishi
2016 Frontiers in Human Neuroscience  
Resting-state functional connectivity has allowed us to parcellate the cerebral cortex into putative functional areas based on the changes in the spatial pattern of connectivity in the cerebral cortex  ...  In the present high spatial-resolution fMRI study, we investigate the connectivity-based organization of the OFC with reference to the hypothalamus.  ...  RESULTS As a standard analysis, the functional connectivity was calculated between the bilateral entire hypothalamus and each voxel in the whole brain.  ... 
doi:10.3389/fnhum.2016.00244 pmid:27303281 pmcid:PMC4880561 fatcat:ipclb5nq6zfxlp5aezcoernnv4

Are friends really the family we choose? Local variations of hypothalamus activity when viewing personally known faces

Farah H. Wolfe, Christine Deruelle, Thierry Chaminade
2017 Social Neuroscience  
Hypothalamic supraoptic nucleus (SON) and paraventricular nucleus (PVN) synthesize and secrete neuropeptides, including oxytocin, associated with attachment behaviors.  ...  We also thank all of our participants for their time and effort. Disclosure statement 800 No potential conflict of interest was reported by the authors. AQ8  ...  Hypothalamus mask analysis Voxel-based analysis within the hypothalamic mask 420 revealed significant clusters of activation for different contrasts, suggesting differential local activity within the hypothalamus  ... 
doi:10.1080/17470919.2017.1317662 pmid:28388867 fatcat:aw7vf7fbc5atnegcwinmluiv5y

Diffusion tensor imaging segments the human amygdala in vivo

Eugenia Solano-Castiella, Alfred Anwander, Gabriele Lohmann, Marcel Weiss, Carol Docherty, Stefan Geyer, Enrico Reimer, Angela D. Friederici, Robert Turner
2010 NeuroImage  
With standard magnetic resonance imaging (MRI) techniques, however, the amygdala appears as an undifferentiated area of grey matter.  ...  Earlier cytoarchitectural research in post-mortem human and animal brains has revealed multiple subdivisions and connectivity patterns, probably related to different functions.  ...  The authors declare no conflict of interest.  ... 
doi:10.1016/j.neuroimage.2009.11.027 pmid:19931398 fatcat:xriwhdkdtrhuhhdihcwlg2hv6i

Hypothalamic structural and functional imbalances in anorexia nervosa

Vincent Florent, Marc Baroncini, Patrice Jissendi-Tchofo, Renaud Lopes, Matthieu Vanhoutte, Sowmyalakshmi RASIKA, Jean-Pierre Pruvo, Jean Vignau, Stephane Verdun, Jeanette E. Johansen, Marie Pigeyre, Sebastien G. Bouret (+2 others)
2019 Neuroendocrinology  
This reversal of the Glx response is associated with decreased wiring in the arcuate nucleus and increased connectivity in the lateral hypothalamic area, which are involved in the regulation on a variety  ...  of physiological and behavioral functions including the control of food intake and energy balance.  ...  Statement of Ethics The study was carried out with the approval of the Comité de Protection des Personnes Nord Ouest IV (No.  ... 
doi:10.1159/000503147 pmid:31484186 fatcat:wbfixh5e5vh77lh3vhriuzi6n4

Brain–heart interactions: challenges and opportunities with functional magnetic resonance imaging at ultra-high field

Catie Chang, Erika P. Raven, Jeff H. Duyn
2016 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences  
Recent studies have taken initial steps towards mapping human brainstem nuclei into a standard-space atlas (at 7 T [97] ) and towards visualizing neuroanatomic connections between autonomic nuclei in  ...  In practice, for voxel sizes of 1 mm 3 and below, thermal noise will be the dominant noise source and the spatial extent of the functional contrast will often exceed the voxel size.  ... 
doi:10.1098/rsta.2015.0188 pmid:27044994 pmcid:PMC4822447 fatcat:gx7xotwgjrchjlqsqd6mq5qnjm

The migraine generator revisited: continuous scanning of the migraine cycle over 30 days and three spontaneous attacks

Laura H. Schulte, Arne May
2016 Brain  
These data suggest that although the brainstem is highly linked to the migraine biology, the real driver of attacks might be the functional changes in hypothalamo-brainstem connectivity.  ...  Functional imaging using positron emission tomography and later functional magnetic resonance imaging revealed a particular brainstem area that is believed to be specifically activated in migraine during  ...  Acknowledgement The authors thank the migraine patient, who took it on her to undergo a nociceptive functional MRI paradigm every morning over 30 continuous days without treating the rather severe migraine  ... 
doi:10.1093/brain/aww097 pmid:27190019 fatcat:7a5mltow75c4no4dmetceknrfa

Focal atrophy of the hypothalamus associated with third ventricle enlargement in autism spectrum disorder

Farah H. Wolfe, Guillaume Auzias, Christine Deruelle, Thierry Chaminade
2015 NeuroReport  
using Voxel-based morphometry (VBM), in a homogenous sample of participants controlled for age and IQ; 2) for generalization, by measuring third ventricular volume, based on its position bilaterally surrounded  ...  Article Hypothalamus and Autism 2 ABSTRACT The hypothalamus is a brain structure containing multiple nuclei that mediate essential behavioral, autonomic and endocrinal functions including oxytocin (OXT  ...  focal hypothalamic GM difference using small voxel size of 1mm 3 .  ... 
doi:10.1097/wnr.0000000000000461 pmid:26445284 fatcat:qpjwzn3oendqhixyfeqvb6lgbu

The Role of the Human Hypothalamus in Food Intake Networks: An MRI Perspective

Coleen Roger, Adèle Lasbleiz, Maxime Guye, Anne Dutour, Bénédicte Gaborit, Jean-Philippe Ranjeva
2022 Frontiers in Nutrition  
The current paper aims at reviewing the contribution of magnetic resonance imaging (MRI) in the study of the role of the HT in food intake regulation.  ...  It focuses on the different MRI techniques that have been used to describe structurally and functionally the Human HT.  ...  in-vivo anatomical atlas of the human HT with a spatial resolution up to 0.25 × 0.25 × 0.25 mm voxel size.  ... 
doi:10.3389/fnut.2021.760914 pmid:35047539 pmcid:PMC8762294 fatcat:25nkobghyjeazl3hv5lnokpeua

A Neural Signature of Affiliative Emotion in the Human Septohypothalamic Area

J. Moll, P. Bado, R. de Oliveira-Souza, I. E. Bramati, D. O. Lima, F. F. Paiva, J. R. Sato, F. Tovar-Moll, R. Zahn
2012 Journal of Neuroscience  
Lesion and neuroimaging studies concur with the importance of these regions for attachment and the experience of affiliation in humans as well.  ...  Here we show, using functional MRI, that kinship-related social scenarios evocative of affiliative emotion induce septal-preoptic-anterior hypothalamic activity that cannot be explained by positive or  ...  Statistical images displayed at uncorrected threshold p ϭ 0.005, minimum cluster size ϭ 5 voxels for visualization purposes.  ... 
doi:10.1523/jneurosci.6508-11.2012 pmid:22956840 pmcid:PMC6621241 fatcat:ngykn6gijnbuvh27sjekjzmcuq

Multimodal evaluation of the amygdala's functional connectivity

Rebecca Kerestes, Henry W. Chase, Mary L. Phillips, Cecile D. Ladouceur, Simon B. Eickhoff
2017 NeuroImage  
coactivation to the functional connectivity of these nuclei as assessed by resting state fmri (rs-fmri).  ...  The amygdala is one of the most extensively studied human brain regions and undisputedly plays a central role in many psychiatric disorders.  ...  Phillips is also funded by the Pittsburgh Foundation-Emmerling Endowed Chair in Psychotic Disorders.  ... 
doi:10.1016/j.neuroimage.2016.12.023 pmid:28089676 pmcid:PMC5416470 fatcat:crcttiqnerckbglrhvwpwdps5y

Extensive Direct Subcortical Cerebellum-Basal Ganglia Connections in Human Brain as Revealed by Constrained Spherical Deconvolution Tractography

Demetrio Milardi, Alessandro Arrigo, Giuseppe Anastasi, Alberto Cacciola, Silvia Marino, Enricomaria Mormina, Alessandro Calamuneri, Daniele Bruschetta, Giuseppina Cutroneo, Fabio Trimarchi, Angelo Quartarone
2016 Frontiers in Neuroanatomy  
Here we tested the hypothesis if these connections also exist between the cerebellum and basal ganglia in the human brain by using diffusion magnetic resonance imaging and tractography.  ...  The connections between the cerebellum and basal ganglia were assumed to occur at the level of neocortex.  ...  Placido Bramanti, Science Manager of I.R.C.C.S. "Centro Neurolesi", Messina where the research was carried out.  ... 
doi:10.3389/fnana.2016.00029 pmid:27047348 pmcid:PMC4796021 fatcat:orhraiuc6rgorbb7tk3nujad7m
« Previous Showing results 1 — 15 out of 853 results