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Brain cortical thickness

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https://www.readbyqxmd.com/read/28420972/multi-modal-multi-measure-and-multi-class-discrimination-of-adhd-with-hierarchical-feature-extraction-and-extreme-learning-machine-using-structural-and-functional-brain-mri
#1
Muhammad Naveed Iqbal Qureshi, Jooyoung Oh, Beomjun Min, Hang Joon Jo, Boreom Lee
Structural and functional MRI unveil many hidden properties of the human brain. We performed this multi-class classification study on selected subjects from the publically available attention deficit hyperactivity disorder ADHD-200 dataset of patients and healthy children. The dataset has three groups, namely, ADHD inattentive, ADHD combined, and typically developing. We calculated the global averaged functional connectivity maps across the whole cortex to extract anatomical atlas parcellation based features from the resting-state fMRI (rs-fMRI) data and cortical parcellation based features from the structural MRI (sMRI) data...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28417232/healthy-cortical-development-through-adolescence-and-early-adulthood
#2
Natalie J Forde, Lisa Ronan, Marcel P Zwiers, Lizanne J S Schweren, Aaron F Alexander-Bloch, Barbara Franke, Stephen V Faraone, Jaap Oosterlaan, Dirk J Heslenfeld, Catharina A Hartman, Jan K Buitelaar, Pieter J Hoekstra
Adolescence is a period of significant brain changes; however, the effects of age and sex on cortical development are yet to be fully characterized. Here, we utilized innovative intrinsic curvature (IC) analysis, along with the traditional cortical measures [cortical thickness (CT), local gyrification index (LGI), and surface area (SA)], to investigate how these indices (1) relate to each other and (2) depend on age and sex in adolescent cortical development. T1-weighted magnetic resonance images from 218 healthy volunteers (age range 8...
April 17, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28414250/longitudinal-changes-in-brain-morphology-from-4-weeks-to-12-months-after-mild-traumatic-brain-injury-associations-with-cognitive-functions-and-clinical-variables
#3
T Hellstrom, L T Westlye, S Sigurdardottir, C Brunborg, H L Soberg, Ø Holthe, A Server, M J Lund, O A Andreassen, N Andelic
OBJECTIVE: To investigate longitudinal changes in cortical and subcortical volumes in patients with mild traumatic brain injury (MTBI) and to evaluate whether such changes were associated with self-reported post-concussive symptoms, global functional outcomes and neuropsychological functioning. METHODS: This was a prospecitve, longitudinal cohort study of patients with complicated (i.e presence of intracranial abnormalities on the day of injury CT) and uncomplicated MTBI (i...
April 17, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28412941/survival-prediction-in-amyotrophic-lateral-sclerosis-based-on-mri-measures-and-clinical-characteristics
#4
Christina Schuster, Orla Hardiman, Peter Bede
BACKGROUND: Amyotrophic lateral sclerosis (ALS) a highly heterogeneous neurodegenerative condition. Accurate diagnostic, monitoring and prognostic biomarkers are urgently needed both for individualised patient care and clinical trials. A multimodal magnetic resonance imaging study is presented, where MRI measures of ALS-associated brain regions are utilised to predict 18-month survival. METHODS: A total of 60 ALS patients and 69 healthy controls were included in this study...
April 17, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28409354/retrosplenial-cortical-thinning-as-a-possible-major-contributor-for-cognitive-impairment-in-hiv-patients
#5
Na-Young Shin, Jinwoo Hong, Jun Yong Choi, Seung-Koo Lee, Soo Mee Lim, Uicheul Yoon
OBJECTIVES: To identify brain cortical regions relevant to HIV-associated neurocognitive disorder (HAND) in HIV patients. METHODS: HIV patients with HAND (n = 10), those with intact cognition (HIV-IC; n = 12), and age-matched, seronegative controls (n = 11) were recruited. All participants were male and underwent 3-dimensional T1-weighted imaging. Both vertex-wise and region of interest (ROI) analyses were performed to analyse cortical thickness. RESULTS: Compared to controls, both HIV-IC and HAND showed decreased cortical thickness mainly in the bilateral primary sensorimotor areas, extending to the prefrontal and parietal cortices...
April 13, 2017: European Radiology
https://www.readbyqxmd.com/read/28398341/the-cacna1c-risk-allele-rs1006737-is-associated-with-age-related-prefrontal-cortical-thinning-in-bipolar-i-disorder
#6
M G Soeiro-de-Souza, B Lafer, R A Moreno, F G Nery, T Chile, K Chaim, C da Costa Leite, R Machado-Vieira, M C G Otaduy, H Vallada
Calcium channels control the inflow of calcium ions into cells and are involved in diverse cellular functions. The CACNA1C gene polymorphism rs1006737 A allele has been strongly associated with increased risk for bipolar disorder (BD) and with modulation of brain morphology. The medial prefrontal cortex (mPFC) has been widely associated with mood regulation in BD, but the role of this CACNA1C polymorphism in mPFC morphology and brain aging has yet to be elucidated. One hundred seventeen euthymic BD type I subjects were genotyped for CACNA1C rs1006737 and underwent 3 T three-dimensional structural magnetic resonance imaging scans to determine cortical thickness of mPFC components (superior frontal cortex (sFC), medial orbitofrontal cortex (mOFC), caudal anterior cingulate cortex (cACC) and rostral anterior cingulate cortex (rACC))...
April 11, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28392489/quantifying-cortical-development-in-typically-developing-toddlers-and-young-children-1-6-years-of-age
#7
Justin Remer, Elise Croteau-Chonka, Douglas C Dean, Sara D'Arpino, Holly Dirks, Dannielle Whiley, Sean C L Deoni
Cortical maturation, including age-related changes in thickness, volume, surface area, and folding (gyrification), play a central role in developing brain function and plasticity. Further, abnormal cortical maturation is a suspected substrate in various behavioral, intellectual, and psychiatric disorders. However, in order to characterize the altered development associated with these disorders, appreciation of the normative patterns of cortical development in neurotypical children between 1 and 6 years of age, a period of peak brain development during which many behavioral and developmental disorders emerge, is necessary...
April 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28392082/neglect-as-a-violation-of-species-expectant-experience-neurodevelopmental-consequences
#8
REVIEW
Katie A McLaughlin, Margaret A Sheridan, Charles A Nelson
The human brain requires a wide variety of experiences and environmental inputs in order to develop normally. Children who are neglected by caregivers or raised in institutional environments are deprived of numerous types of species-expectant environmental experiences. In this review, we articulate a model of how the absence of cognitive stimulation and sensory, motor, linguistic, and social experiences common among children raised in deprived early environments constrains early forms of learning, producing long-term deficits in complex cognitive function and associative learning...
February 27, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/28387866/bdnf-dependent-effects-on-amygdala-cortical-circuitry-and-depression-risk-in-children-and-youth
#9
Anne L Wheeler, Daniel Felsky, Joseph D Viviano, Sonja Stojanovski, Stephanie H Ameis, Peter Szatmari, Jason P Lerch, M Mallar Chakravarty, Aristotle N Voineskos
The brain-derived neurotrophic factor (BDNF) is critical for brain development, and the functional BDNF Val66Met polymorphism is implicated in risk for mood disorders. The objective of this study was to determine how the Val66Met polymorphism influences amygdala-cortical connectivity during neurodevelopment and assess the relevance for mood disorders. Age- and sex-specific effects of the BDNF Val66Met polymorphism on amygdala-cortical connectivity were assessed by examining covariance of amygdala volumes with thickness throughout the cortex in a sample of Caucasian youths ages 8-22 that were part of the Philadelphia Neurodevelopmental Cohort (n = 339)...
April 6, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28377043/associations-between-cortical-thickness-and-neurocognitive-skills-during-childhood-vary-by-family-socioeconomic-factors
#10
Natalie H Brito, Luciane R Piccolo, Kimberly G Noble
Studies have reported associations between cortical thickness (CT) and socioeconomic status (SES), as well as between CT and cognitive outcomes. However, findings have been mixed as to whether CT explains links between SES and cognitive performance. In the current study, we hypothesized that this inconsistency may have arisen from the fact that socioeconomic factors (family income and parental education) may moderate the relation between CT and neurocognitive skills. Results indicated that associations between CT and cognitive performance did vary by SES for both language and executive function (EF) abilities...
April 1, 2017: Brain and Cognition
https://www.readbyqxmd.com/read/28370719/brain-structure-and-organization-five-decades-after-childhood-onset-epilepsy
#11
Camille Garcia-Ramos, Sam Bobholz, Kevin Dabbs, Bruce Hermann, Juho Joutsa, Juha O Rinne, Mira Karrasch, Vivek Prabhakaran, Shlomo Shinnar, Matti Sillanpää
The purpose of this project was to characterize brain structure and organization in persons with active and remitted childhood onset epilepsy 50 years after diagnosis compared with healthy controls. Participants from a population-based investigation of uncomplicated childhood onset epilepsy were followed up 5 decades later. Forty-one participants had a history of childhood onset epilepsy (mean age of onset = 5.2 years, current chronological age = 56.0 years) and were compared with 48 population-based controls (mean age = 55...
April 3, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28369804/positive-symptoms-associate-with-cortical-thinning-in-the-superior-temporal-gyrus-via-the-enigma-schizophrenia-consortium
#12
E Walton, D P Hibar, T G M van Erp, S G Potkin, R Roiz-Santiañez, B Crespo-Facorro, P Suarez-Pinilla, N E M Van Haren, S M C de Zwarte, R S Kahn, W Cahn, N T Doan, K N Jørgensen, T P Gurholt, I Agartz, O A Andreassen, L T Westlye, I Melle, A O Berg, L Mørch-Johnsen, A Faerden, L Flyckt, H Fatouros-Bergman, E G Jönsson, R Hashimoto, H Yamamori, M Fukunaga, A Preda, P De Rossi, F Piras, N Banaj, V Ciullo, G Spalletta, R E Gur, R C Gur, D H Wolf, T D Satterthwaite, L M Beard, I E Sommer, S Koops, O Gruber, A Richter, B Krämer, S Kelly, G Donohoe, C McDonald, D M Cannon, A Corvin, M Gill, A Di Giorgio, A Bertolino, S Lawrie, T Nickson, H C Whalley, E Neilson, V D Calhoun, P M Thompson, J A Turner, S Ehrlich
OBJECTIVE: Based on the role of the superior temporal gyrus (STG) in auditory processing, language comprehension and self-monitoring, this study aimed to investigate the relationship between STG cortical thickness and positive symptom severity in schizophrenia. METHOD: This prospective meta-analysis includes data from 1987 individuals with schizophrenia collected at seventeen centres around the world that contribute to the ENIGMA Schizophrenia Working Group. STG thickness measures were extracted from T1-weighted brain scans using FreeSurfer...
May 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28369260/financial-exploitation-is-associated-with-structural-and-functional-brain-differences-in-healthy-older-adults
#13
R Nathan Spreng, Benjamin N Cassidy, Bri S Darboh, Elizabeth DuPre, Amber W Lockrow, Roni Setton, Gary R Turner
Background: Age-related brain changes leading to altered socioemotional functioning may increase vulnerability to financial exploitation. If confirmed, this would suggest a novel mechanism leading to heightened financial exploitation risk in older adults. Development of predictive neural markers could facilitate increased vigilance and prevention. In this preliminary study, we sought to identify structural and functional brain differences associated with financial exploitation in older adults...
March 28, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28365755/through-thick-and-thin-a-need-to-reconcile-contradictory-results-on-trajectories-in-human-cortical-development
#14
Kristine B Walhovd, Anders M Fjell, Jay Giedd, Anders M Dale, Timothy T Brown
Understanding how brain development normally proceeds is a premise of understanding neurodevelopmental disorders. This has sparked a wealth of magnetic resonance imaging (MRI) studies. Unfortunately, they are in marked disagreement on how the cerebral cortex matures. While cortical thickness increases for the first 8-9 years of life have repeatedly been reported, others find continuous cortical thinning from early childhood, at least from age 3 or 4 years. We review these inconsistencies, and discuss possible reasons, including the use of different scanners, recording parameters and analysis tools, and possible effects of variables such as head motion...
February 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28364462/the-developmental-course-of-sleep-disturbances-across-childhood-relates-to-brain-morphology-at-age-7-the-generation-r-study
#15
Desana Kocevska, Ryan L Muetzel, Annemarie I Luik, Maartje P C M Luijk, Vincent W Jaddoe, Frank C Verhulst, Tonya White, Henning Tiemeier
Objectives: Little is known about the impact of sleep disturbances on the structural properties of the developing brain. This study explored associations between childhood sleep disturbances and brain morphology at 7 years. Methods: Mothers from the Generation R cohort reported sleep disturbances in 720 children at ages 2 months, 1.5, 2, 3, and 6 years. T1-weighted Magnetic Resonance Imaging (MRI) images were used to assess brain structure at 7 years. Associations of sleep disturbances at each age and of sleep disturbance trajectories with brain volumes (total brain volume, cortical and subcortical grey matter, white matter) were tested with linear regressions...
January 1, 2017: Sleep
https://www.readbyqxmd.com/read/28359883/the-bdnf-val-66-met-polymorphism-is-associated-with-structural-neuroanatomical-differences-in-young-children
#16
Kaja K Jasińska, Peter J Molfese, Sergey A Kornilov, W Einar Mencl, Stephen J Frost, Maria Lee, Kenneth R Pugh, Elena L Grigorenko, Nicole Landi
The brain-derived neurotrophic factor (BDNF) Val(66)Met single nucleotide polymorphism (SNP) has been associated with individual differences in brain structure and function, and cognition. Research on BDNF's influence on brain and cognition has largely been limited to adults, and little is known about the association of this gene, and specifically the Val(66)Met polymorphism, with developing brain structure and emerging cognitive functions in children. We performed a targeted genetic association analysis on cortical thickness, surface area, and subcortical volume in 78 children (ages 6-10) who were Val homozygotes (homozygous Val/Val carriers) or Met carriers (Val/Met, Met/Met) for the Val(66)Met locus using Atlas-based brain segmentation...
March 27, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28358925/serum-s100b-a-proxy-marker-for-grey-and-white-matter-status-in-the-absence-and-presence-of-increased-risk-of-psychotic-disorder
#17
Christine van der Leeuw, Sanne Peeters, Ed Gronenschild, Stijn Michielse, Marcel Verbeek, Paul Menheere, Jim van Os, Machteld Marcelis
S100B is a protein with dose-dependent neurotrophic and neurotoxic effects. Whether S100B in psychotic disorder mirrors pathophysiological mechanisms (which elicit exacerbation of disease) or compensatory action is unclear, as is its validity as a proxy marker for brain status. Insight may be gained by examining associations between serum S100B and indices of grey (cortical thickness (CT)) and white matter (fractional anisotropy (FA)), in relation to the absence or presence of (increased risk of) psychotic disorder...
2017: PloS One
https://www.readbyqxmd.com/read/28353135/abnormal-brain-structure-implicated-in-patients-with-functional-dyspepsia
#18
Peng Liu, Geliang Wang, Fang Zeng, Yanfei Liu, Yingying Fan, Ying Wei, Wei Qin, Vince D Calhoun
Recent studies suggest dysfunctional brain-gut interactions are involved in the pathophysiology of functional dyspepsia (FD). However, limited studies have investigated brain structural abnormalities in FD patients. This study aimed to identify potential differences in both cortical thickness and subcortical volume in FD patients compared to healthy controls (HCs) and to explore relationships of structural abnormalities with clinical symptoms. Sixty-nine patients and forty-nine HCs underwent 3T structural magnetic resonance imaging scans...
March 28, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/28348952/radiation-induced-abnormal-cortical-thickness-in-patients-with-nasopharyngeal-carcinoma-after-radiotherapy
#19
Jiabao Lin, Xiaofei Lv, Meiqi Niu, Lizhi Liu, Jun Chen, Fei Xie, Miao Zhong, Shijun Qiu, Li Li, Ruiwang Huang
Conventional MRI studies showed that radiation-induced brain necrosis in patients with nasopharyngeal carcinoma (NPC) in years after radiotherapy (RT) could involve brain gray matter (GM) and impair brain function. However, it is still unclear the radiation-induced brain morphological changes in NPC patients with normal-appearing GM in the early period after RT. In this study, we acquired high-resolution brain structural MRI data from three groups of patients, 22 before radiotherapy (pre-RT) NPC patients with newly diagnosed but not yet medically treated, 22 NPC patients in the early-delayed stage after radiotherapy (post-RT-ED), and 20 NPC patients in the late-delayed stage after radiotherapy (post-RT-LD), and then analyzed the radiation-induced cortical thickness alteration in NPC patients after RT...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28348889/cortical-thinning-in-network-associated-regions-in-cognitively-normal-and-below-normal-range-schizophrenia
#20
R Walter Heinrichs, Farena Pinnock, Melissa Parlar, Colin Hawco, Lindsay Hanford, Geoffrey B Hall
This study assessed whether cortical thickness across the brain and regionally in terms of the default mode, salience, and central executive networks differentiates schizophrenia patients and healthy controls with normal range or below-normal range cognitive performance. Cognitive normality was defined using the MATRICS Consensus Cognitive Battery (MCCB) composite score (T = 50 ± 10) and structural magnetic resonance imaging was used to generate cortical thickness data. Whole brain analysis revealed that cognitively normal range controls (n = 39) had greater cortical thickness than both cognitively normal (n = 17) and below-normal range (n = 49) patients...
2017: Schizophrenia Research and Treatment
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