Journal ArticleDOI
Conn: A Functional Connectivity Toolbox for Correlated and Anticorrelated Brain Networks
TLDR
The results indicate that the CompCor method increases the sensitivity and selectivity of fcMRI analysis, and show a high degree of interscan reliability for many fc MRI measures.Citations
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Journal ArticleDOI
Abnormal Development and Dysconnectivity of Distinct Thalamic Nuclei in Patients With 22q11.2 Deletion Syndrome Experiencing Auditory Hallucinations.
TL;DR: The findings point toward an aberrant development of thalamic nuclei and an immature pattern of connectivity with temporal regions in relation to AHs, which might be interpreted as a lack of maturation of thalamocortical connectivity.
Journal ArticleDOI
Subjective memory complaints are associated with altered resting-state functional connectivity but not structural atrophy
TL;DR: The findings suggest that altered resting-state functional connectivity in regions associated with SMC might reflect early compensatory changes that occur before cognitive and structural abnormalities develop.
Journal ArticleDOI
Brain functional connectivity data enhance prediction of clinical outcome in youth at risk for psychosis.
Guusje Collin,Guusje Collin,Guusje Collin,Alfonso Nieto-Castanon,Martha E. Shenton,Ofer Pasternak,Sinead Kelly,Matcheri S. Keshavan,Larry J. Seidman,Robert W. McCarley,Margaret A. Niznikiewicz,Huijun Li,Tianhong Zhang,Yingying Tang,William S. Stone,Jijun Wang,Susan Whitfield-Gabrieli +16 more
TL;DR: Combining clinical and fMRI measures yields superior predictive performance and improves outcome prediction in youth at risk for psychosis, according to fMRI connectivity data.
Journal ArticleDOI
Further evidence of alerted default network connectivity and association with theory of mind ability in schizophrenia
Omar Mothersill,Omar Mothersill,Noreen Tangney,Derek W. Morris,Derek W. Morris,Hazel McCarthy,Thomas Frodl,Michael Gill,Aiden Corvin,Gary Donohoe,Gary Donohoe +10 more
TL;DR: This study confirms previous findings of default hyper-connectivity in schizophrenia spectrum patients and reveals an association between altered default connectivity and positive symptom severity and shows that default connectivity is correlated to and predictive of theory of mind performance.
Journal ArticleDOI
Neural foundations of overt and covert actions.
Panagiotis G. Simos,Eleftherios Kavroulakis,Thomas G. Maris,Efrosini Papadaki,T. Boursianis,Giorgos Kalaitzakis,Helen E. Savaki,Helen E. Savaki +7 more
TL;DR: Functional connectivity analyses corroborated the notion that a common sensory‐motor fronto‐parieto‐temporal cortical network is engaged for execution, observation, and imagination of the very same action.
References
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Journal ArticleDOI
Collective dynamics of small-world networks
TL;DR: Simple models of networks that can be tuned through this middle ground: regular networks ‘rewired’ to introduce increasing amounts of disorder are explored, finding that these systems can be highly clustered, like regular lattices, yet have small characteristic path lengths, like random graphs.
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A default mode of brain function.
Marcus E. Raichle,Ann Mary MacLeod,Abraham Z. Snyder,William J. Powers,Debra A. Gusnard,Gordon L. Shulman +5 more
TL;DR: A baseline state of the normal adult human brain in terms of the brain oxygen extraction fraction or OEF is identified, suggesting the existence of an organized, baseline default mode of brain function that is suspended during specific goal-directed behaviors.
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Complex brain networks: graph theoretical analysis of structural and functional systems
Edward T. Bullmore,Olaf Sporns +1 more
TL;DR: This article reviews studies investigating complex brain networks in diverse experimental modalities and provides an accessible introduction to the basic principles of graph theory and highlights the technical challenges and key questions to be addressed by future developments in this rapidly moving field.
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Functional connectivity in the motor cortex of resting human brain using echo-planar MRI.
TL;DR: It is concluded that correlation of low frequency fluctuations, which may arise from fluctuations in blood oxygenation or flow, is a manifestation of functional connectivity of the brain.
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The Brain's Default Network Anatomy, Function, and Relevance to Disease
TL;DR: Past observations are synthesized to provide strong evidence that the default network is a specific, anatomically defined brain system preferentially active when individuals are not focused on the external environment, and for understanding mental disorders including autism, schizophrenia, and Alzheimer's disease.