scholarly journals Neural convergence and divergence in the mammalian cerebral cortex: From experimental neuroanatomy to functional neuroimaging

2013 ◽  
Vol 521 (18) ◽  
pp. 4097-4111 ◽  
Author(s):  
Kingson Man ◽  
Jonas Kaplan ◽  
Hanna Damasio ◽  
Antonio Damasio
NeuroImage ◽  
2012 ◽  
Vol 59 (2) ◽  
pp. 1239-1248 ◽  
Author(s):  
Gaolang Gong ◽  
Yong He ◽  
Zhang J. Chen ◽  
Alan C. Evans

NeuroImage ◽  
2008 ◽  
Vol 40 (4) ◽  
pp. 1436-1459 ◽  
Author(s):  
Jorge J. Riera ◽  
Arne Schousboe ◽  
Helle S. Waagepetersen ◽  
Clare Howarth ◽  
Fahmeed Hyder

2008 ◽  
Vol 119 (9) ◽  
pp. e107
Author(s):  
J. Riera ◽  
T. Goto ◽  
H. Enjieu-Kadji ◽  
T. Ogawa ◽  
R. Morito ◽  
...  

2011 ◽  
Vol 63 (1) ◽  
pp. 43-48
Author(s):  
D.M. Pavlovic ◽  
Aleksandra Pavlovic ◽  
Maja Lackovic

Hallucinations are a psychopathological phenomenon with neuropsychological, neuroanatomical and pathophysiological correlates in specific brain areas. They can affect any of the senses, but auditory and visual hallucinations predominate. Verbal hallucinations reveal no gross organic lesions while visual hallucinations are connected to defined brain lesions. Functional neuroimaging shows impairments in modality specific sensory systems with the hyperactivity of the surrounding cerebral cortex. Disinhibition and expansion of the inner speech was noted with impaired internal monitoring in auditory verbal hallucinations. The subcortical areas and modal-specific associative cortex and cingulate cortex are essential for the occurrence of hallucinations.


Author(s):  
Eli Müller ◽  
Brandon Munn ◽  
Luke J. Hearne ◽  
Jared B. Smith ◽  
Ben Fulcher ◽  
...  

AbstractRecent neuroimaging experiments have defined low-dimensional gradients of functional connectivity in the cerebral cortex that subserve a spectrum of capacities that span from sensation to cognition. Despite well-known anatomical connections to the cortex, the subcortical areas that support cortical functional organization have been relatively overlooked. One such structure is the thalamus, which maintains extensive anatomical and functional connections with the cerebral cortex across the cortical mantle. The thalamus has a heterogeneous cytoarchitecture, with at least two distinct cell classes that send differential projections to the cortex: granular-projecting ‘Core’ cells and supragranular-projecting ‘Matrix’ cells. Here we use high-resolution 7T resting-state fMRI data and the relative amount of two calcium-binding proteins, parvalbumin and calbindin, to infer the relative distribution of these two cell-types (Core and Matrix, respectively) in the thalamus. First, we demonstrate that thalamocortical connectivity recapitulates large-scale, low-dimensional connectivity gradients within the cerebral cortex. Next, we show that diffusely-projecting Matrix regions preferentially correlate with cortical regions with longer intrinsic fMRI timescales. We then show that the Core–Matrix architecture of the thalamus is important for understanding network topology in a manner that supports dynamic integration of signals distributed across the brain. Finally, we replicate our main results in a distinct 3T resting-state fMRI dataset. Linking molecular and functional neuroimaging data, our findings highlight the importance of the thalamic organization for understanding low-dimensional gradients of cortical connectivity.


2020 ◽  
Author(s):  
Suzana Herculano‐Houzel ◽  
Felipe Barros Cunha ◽  
Jamie L. Reed ◽  
Consolate Kaswera‐Kyamakya ◽  
Emmanuel Gillissen ◽  
...  

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