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Cognition and functional connectivity

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https://www.readbyqxmd.com/read/29456143/neocortical-association-cell-types-in-the-forebrain-of-birds-and-alligators
#1
Steven D Briscoe, Caroline B Albertin, Joanna J Rowell, Clifton W Ragsdale
The avian dorsal telencephalon has two vast territories, the nidopallium and the mesopallium, both of which have been shown to contribute substantially to higher cognitive functions. From their connections, these territories have been proposed as equivalent to mammalian neocortical layers 2 and 3, various neocortical association areas, or the amygdala, but whether these are analogies or homologies by descent is unknown. We investigated the molecular profiles of the mesopallium and the nidopallium with RNA-seq...
February 14, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29456134/parietal-control-network-activation-during-memory-tasks-may-be-associated-with-the-co-occurrence-of-externally-and-internally-directed-cognition-a-cross-function-meta-analysis
#2
Hongkeun Kim
Functional neuroimaging studies on episodic memory retrieval consistently indicated the activation of the precuneus (PCU), mid-cingulate cortex (MCC), and lateral intraparietal sulcus (latIPS) regions. Although studies typically interpreted these activations in terms of memory retrieval processes, resting-state functional connectivity data indicate that these regions are part of the frontoparietal control network, suggesting a more general, cross-functional role. In this regard, this study proposes a novel hypothesis which suggests that the parietal control network plays a strong role in accommodating the co-occurrence of externally directed cognition (EDC) and internally directed cognition (IDC), which are typically antagonistic to each other...
March 15, 2018: Brain Research
https://www.readbyqxmd.com/read/29451491/the-relationship-between-spatial-configuration-and-functional-connectivity-of-brain-regions
#3
Janine Diane Bijsterbosch, Mark W Woolrich, Matthew F Glasser, Emma C Robinson, Christian F Beckmann, David C Van Essen, Samuel J Harrison, Stephen M Smith
Brain connectivity is often considered in terms of the communication between functionally distinct brain regions. Many studies have investigated the extent to which patterns of coupling strength between multiple neural populations relates to behaviour. For example, studies have used 'functional connectivity fingerprints' to characterise individuals' brain activity. Here, we investigate the extent to which the exact spatial arrangement of cortical regions interacts with measures of brain connectivity. We find that the shape and exact location of brain regions interact strongly with the modelling of brain connectivity, and present evidence that the spatial arrangement of functional regions is strongly predictive of non-imaging measures of behaviour and lifestyle...
February 16, 2018: ELife
https://www.readbyqxmd.com/read/29451125/reduced-integration-and-improved-segregation-of-functional-brain-networks-in-alzheimer-s-disease
#4
A Kabbara, H Eid, W El Falou, M Khalil, F Wendling, M Hassan
OBJECTIVE: Emerging evidence shows that cognitive deficits in Alzheimer's disease (AD) are associated with disruptions in brain functional connectivity. Thus, the identification of alterations in AD functional networks has become a topic of increasing interest. However, to what extent AD induces disruption of the balance of local and global information processing in the human brain remains elusive. The main objective of this study is to explore the dynamic topological changes of AD networks in terms of brain network segregation and integration...
February 16, 2018: Journal of Neural Engineering
https://www.readbyqxmd.com/read/29450447/interplay-among-psychopathologic-variables-personal-resources-context-related-factors-and-real-life-functioning-in-individuals-with-schizophrenia-a-network-analysis
#5
Silvana Galderisi, Paola Rucci, Brian Kirkpatrick, Armida Mucci, Dino Gibertoni, Paola Rocca, Alessandro Rossi, Alessandro Bertolino, Gregory P Strauss, Eugenio Aguglia, Antonello Bellomo, Martino Belvederi Murri, Paola Bucci, Bernardo Carpiniello, Anna Comparelli, Alessandro Cuomo, Domenico De Berardis, Liliana Dell'Osso, Fabio Di Fabio, Barbara Gelao, Carlo Marchesi, Palmiero Monteleone, Cristiana Montemagni, Giulia Orsenigo, Francesca Pacitti, Rita Roncone, Paolo Santonastaso, Alberto Siracusano, Annarita Vignapiano, Antonio Vita, Patrizia Zeppegno, Mario Maj
Importance: Enhanced understanding of factors associated with symptomatic and functional recovery is instrumental to designing personalized treatment plans for people with schizophrenia. To date, this is the first study using network analysis to investigate the associations among cognitive, psychopathologic, and psychosocial variables in a large sample of community-dwelling individuals with schizophrenia. Objective: To assess the interplay among psychopathologic variables, cognitive dysfunctions, functional capacity, personal resources, perceived stigma, and real-life functioning in individuals with schizophrenia, using a data-driven approach...
February 14, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29448151/functional-cortical-source-connectivity-of-resting-state-electroencephalographic-alpha-rhythms-shows-similar-abnormalities-in-patients-with-mild-cognitive-impairment-due-to-alzheimer-s-and-parkinson-s-diseases
#6
Claudio Babiloni, Claudio Del Percio, Roberta Lizio, Giuseppe Noce, Susanna Lopez, Andrea Soricelli, Raffaele Ferri, Maria Teresa Pascarelli, Valentina Catania, Flavio Nobili, Dario Arnaldi, Francesco Famà, Francesco Orzi, Carla Buttinelli, Franco Giubilei, Laura Bonanni, Raffaella Franciotti, Marco Onofrj, Paola Stirpe, Peter Fuhr, Ute Gschwandtner, Gerhard Ransmayr, Heinrich Garn, Lucia Fraioli, Michela Pievani, Fabrizia D'Antonio, Carlo De Lena, Bahar Güntekin, Lutfu Hanoğlu, Erol Başar, Görsev Yener, Derya Durusu Emek-Savaş, Antonio Ivano Triggiani, John Paul Taylor, Maria Francesca De Pandis, Laura Vacca, Giovanni B Frisoni, Fabrizio Stocchi
OBJECTIVE: This study tested the hypothesis that markers of functional cortical source connectivity of resting state eyes-closed electroencephalographic (rsEEG) rhythms may be abnormal in subjects with mild cognitive impairment due to Alzheimer's (ADMCI) and Parkinson's (PDMCI) diseases compared to healthy elderly subjects (Nold). METHODS: rsEEG data had been collected in ADMCI, PDMCI, and Nold subjects (N = 75 for any group). eLORETA freeware estimated functional lagged linear connectivity (LLC) from rsEEG cortical sources...
January 31, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29448074/a-probabilistic-approach-to-discovering-dynamic-full-brain-functional-connectivity-patterns
#7
REVIEW
Jeremy R Manning, Xia Zhu, Theodore L Willke, Rajesh Ranganath, Kimberly Stachenfeld, Uri Hasson, David M Blei, Kenneth A Norman
Recent research shows that the covariance structure of functional magnetic resonance imaging (fMRI) data - commonly described as functional connectivity - can change as a function of the participant's cognitive state (for review see (Turk-Browne, 2013)). Here we present a Bayesian hierarchical matrix factorization model, termed hierarchical topographic factor analysis (HTFA), for efficiently discovering full-brain networks in large multi-subject neuroimaging datasets. HTFA approximates each subject's network by first re-representing each brain image in terms of the activities of a set of localized nodes, and then computing the covariance of the activity time series of these nodes...
February 12, 2018: NeuroImage
https://www.readbyqxmd.com/read/29448003/increased-hippocampal-prefrontal-functional-connectivity-in-insomnia
#8
Jeanne Leerssen, Rick Wassing, Jennifer R Ramautar, Diederick Stoffers, Oti Lakbila-Kamal, Joy Perrier, Jessica Bruijel, Jessica C Foster-Dingley, Moji Aghajani, Eus J W van Someren
Insomnia Disorder (ID) is the second-most common mental disorder and has a far-reaching impact on daytime functioning. A meta-analysis indicates that, of all cognitive domains, declarative memory involving the hippocampus is most affected in insomnia. Hippocampal functioning has consistently been shown to be sensitive to experimental sleep deprivation. Insomnia however differs from sleep deprivation in many aspects, and findings on hippocampal structure and function have been equivocal. The present study used both structural and resting-state functional Magnetic Resonance Imaging in a larger sample than previously reported to evaluate hippocampal volume and functional connectivity in ID...
February 12, 2018: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29445270/alterations-of-the-default-mode-network-and-cognitive-impairments-in-patients-with-chronic-obstructive-pulmonary-disease
#9
Xianwei Hu, Haibao Wang, Youhui Tu, Mengdi Fei, Minmin Yin, Guanghe Fei, Yongqiang Yu
Background and objectives: Cognitive impairment is a common extrapulmonary comorbidity in COPD patients. The default mode network (DMN) plays a critical role in maintaining the normal activities of humans, and its function can be evaluated by resting state functional magnetic resonance imaging. The aim of this study was to investigate the correlations between cognition and function changes of the DMN in COPD patients. Methods: One hundred and thirteen eligible participants including 30 control subjects and 83 COPD patients matched for demographic characteristics were recruited...
2018: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29444207/the-functional-network-signature-of-heterogeneity-in-freezing-of-gait
#10
Kaylena A Ehgoetz Martens, Julie M Hall, Matthew J Georgiades, Moran Gilat, Courtney C Walton, Elie Matar, Simon J G Lewis, James M Shine
Freezing of gait is a complex, heterogeneous, and highly variable phenomenon whose pathophysiology and neural signature remains enigmatic. Evidence suggests that freezing is associated with impairments across cognitive, motor and affective domains; however, most research to date has focused on investigating one axis of freezing of gait in isolation. This has led to inconsistent findings and a range of different pathophysiological models of freezing of gait, due in large part to the tendency for studies to investigate freezing of gait as a homogeneous entity...
February 9, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29441716/behavioural-mating-displays-depend-on-mitochondrial-function-a-potential-mechanism-for-linking-behaviour-to-individual-condition
#11
Rebecca E Koch, Geoffrey E Hill
Males of many animal species court females using complex behavioural displays that are challenging to produce, and some of these displays have been shown to be associated with aspects of male quality. However, the mechanisms by which behavioural displays are linked to individual condition remain uncertain. Herein, we illustrate fundamental mechanistic connections between mitochondrial function and neurogenesis, energy production, and a variety of pathways that underlie the ability of an individual to perform complex behaviours...
February 13, 2018: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/29440404/multivariate-resting-state-functional-connectivity-predicts-response-to-cognitive-behavioral-therapy-in-obsessive-compulsive-disorder
#12
Nicco Reggente, Teena D Moody, Francesca Morfini, Courtney Sheen, Jesse Rissman, Joseph O'Neill, Jamie D Feusner
Cognitive behavioral therapy (CBT) is an effective treatment for many with obsessive-compulsive disorder (OCD). However, response varies considerably among individuals. Attaining a means to predict an individual's potential response would permit clinicians to more prudently allocate resources for this often stressful and time-consuming treatment. We collected resting-state functional magnetic resonance imaging from adults with OCD before and after 4 weeks of intensive daily CBT. We leveraged machine learning with cross-validation to assess the power of functional connectivity (FC) patterns to predict individual posttreatment OCD symptom severity...
February 12, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29439328/impact-of-total-knee-arthroplasty-with-general-anesthesia-on-brain-networks-cognitive-efficiency-and-ventricular-volume-predict-functional-connectivity-decline-in-older-adults
#13
Haiqing Huang, Jared Tanner, Hari Parvataneni, Mark Rice, Ann Horgas, Mingzhou Ding, Catherine Price
 Using resting state functional magnetic resonance imaging (RS-fMRI), we explored: 1) pre- to post-operative changes in functional connectivity in default mode, salience, and central executive networks after total knee arthroplasty (TKA) with general anesthesia, and 2) the contribution of cognitive/brain reserve metrics these resting state functional declines. Individuals age 60 and older electing unilateral total knee arthroplasty (TKA; n = 48) and non-surgery peers with osteoarthritis (n = 45) completed baseline cognitive testing and baseline and post-surgery (post-baseline, 48-h post-surgery) brain MRI...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29438044/impairment-of-cross-modality-of-vision-and-olfaction-in-parkinson-disease
#14
Motoyasu Honma, Yuri Masaoka, Takeshi Kuroda, Akinori Futamura, Azusa Shiromaru, Masahiko Izumizaki, Mitsuru Kawamura
OBJECTIVE: To determine whether Parkinson disease (PD) affects cross-modal function of vision and olfaction because it is known that PD impairs various cognitive functions, including olfaction. METHODS: We conducted behavioral experiments to identify the influence of PD on cross-modal function by contrasting patient performance with age-matched normal controls (NCs). We showed visual effects on the strength and preference of odor by manipulating semantic connections between picture/odorant pairs...
February 7, 2018: Neurology
https://www.readbyqxmd.com/read/29434208/cognition-emotion-and-reward-networks-associated-with-sex-differences-for-romantic-appraisals
#15
Jie Yin, Zhiling Zou, Hongwen Song, Zhuo Zhang, Bo Yang, Xiting Huang
Romantic love is a cross-culturally universal phenomenon that serves as a commitment device for motivating pair bonding in human beings. Women and men may experience different feelings when viewing the same warm, romantic scenes. To determine which brain systems may be involved in romance perception and examine possible sex differences, we scanned 16 women and 16 men who were intensely in love, using functional MRI. Participants were required to rate the romance level of 60 pictures showing romantic events that may frequently occur during romantic relationship formation...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29432769/self-construals-moderate-associations-between-trait-creativity-and-the-social-brain-network
#16
Yi Liu, Bing Wu, Claudio Petti, Xinhuai Wu, Shihui Han
Creativity is an adaptive way of thinking and plays a key role in problem solving. Recent brain imaging studies focused on structural and functional characteristics of the brain that are correlated with creativity. But whether and how the association between creativity and the brain is moderated by individuals' cultural traits remains unclear. We integrated functional magnetic resonance imaging (fMRI) and questionnaire measures (Williams creativity aptitude test) of trait creativity and self-construal (e.g...
February 9, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29432767/suppress-to-feel-and-remember-less-neural-correlates-of-explicit-and-implicit-emotional-suppression-on-perception-and-memory
#17
Yuta Katsumi, Sanda Dolcos
Available evidence suggests that emotion regulation can modulate both immediate (emotional experience) and long-term (episodic memory) effects of emotion, and that both explicit and implicit forms may be effective. However, neural mechanisms by which explicit and implicit emotional suppression affect these phenomena remain unclear, particularly regarding their effects on memory. In this study, participants rated the emotional content of negative and neutral images, following explicit (verbal instructions) or implicit (priming) induction of emotional suppression goals, during functional magnetic resonance imaging...
February 9, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29432569/sleep-quality-and-adolescent-default-mode-network-connectivity
#18
Sarah M Tashjian, Diane Goldenberg, Martin M Monti, Adriana Galván
Sleep suffers during adolescence and is related to academic, emotional and social behaviors. How this normative change relates to ongoing brain development remains unresolved. The default mode network (DMN), a large-scale brain network important for complex cognition and socioemotional processing, undergoes intra-network integration and inter-network segregation during adolescence. Using resting state functional connectivity and actigraphy over 14 days we examined correlates of naturalistic individual differences in sleep duration and quality in the DMN at rest in fifty-five human adolescents (ages 14-18)...
February 7, 2018: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/29432527/advanced-lesion-symptom-mapping-analyses-and-implementation-as-bcbtoolkit
#19
C Foulon, L Cerliani, S Kinkingnéhun, R Levy, C Rosso, M Urbanski, E Volle, M Thiebaut de Schotten
Background: Patients with brain lesions provide a unique opportunity to understand the functioning of the human mind. However, even when focal, brain lesions have local and remote effects that impact functionally and structurally connected circuits. Similarly, function emerges from the interaction between brain areas rather than their sole activity. For instance, category fluency requires the association between executive, semantic and language production functions. Findings: Here we provide, for the first time, a set of complementary solutions to measure the impact of a given lesion upon the neuronal circuits...
February 8, 2018: GigaScience
https://www.readbyqxmd.com/read/29429423/aberrant-topographical-organization-in-default-mode-network-in-first-episode-remitted-geriatric-depression-a-graph-theoretical-analysis
#20
Yan Zhu, Dongqing Wang, Zhe Liu, Yuefeng Li
BACKGROUND: Neuroimaging studies have shown that major depressive disorder is associated with altered activity patterns of the default-mode network (DMN). In this study, we sought to investigate the topological organization of the DMN in patients with remitted geriatric depression (RGD) and whether RGD patients would be more likely to show disrupted topological configuration of the DMN during the resting-state. METHODS: Thirty-three RGD patients and thirty-one healthy control participants underwent clinical and cognitive evaluations as well as resting-state functional magnetic resonance imaging scans...
February 12, 2018: International Psychogeriatrics
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