scholarly journals A new tripartite landmark in posterior cingulate cortex

2021 ◽  
Author(s):  
Ethan H. Willbrand ◽  
Benjamin J. Parker ◽  
Willa I. Voorhies ◽  
Jacob A. Miller ◽  
Ilwoo Lyu ◽  
...  
Keyword(s):  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Functional Brain ◽  
Posterior Cingulate ◽  
Neuroscience Research ◽  
Classic Theory ◽  
Functional Brain Networks ◽  
Functional Features ◽  
Morphological Differences ◽  
Development And Evolution

Understanding brain structure-function relationships, and their development and evolution, is central to neuroscience research. Here, we show that morphological differences in posterior cingulate cortex (PCC), a hub of functional brain networks, predict individual differences in macroanatomical, microstructural, and functional features of PCC. Manually labeling 4,319 sulci in 552 hemispheres, we discovered a consistently localized shallow cortical indentation (termed the inframarginal sulcus; ifrms) within PCC that is absent from neuroanatomical atlases, yet co-localized with a region within the cognitive control, but not default mode, network. Morphological analyses in humans and chimpanzees showed that unique properties of the ifrms differ across the lifespan and between hominoid species. Intriguingly, the consistency of the ifrms also debunks the uniqueness of the morphology of Einstein's PCC. These findings support a classic theory that shallow, tertiary sulci serve as landmarks in association cortices. They also beg the question: how many other cortical indentations have we missed?

Serum Vitamin D and Cingulate Cortex Thickness in Older Adults: Quantitative MRI of the Brain

2019 ◽  
Vol 16 (11) ◽  
pp. 1063-1071 ◽  
Author(s):  
Gonzague Foucault ◽  
Guillaume T Duval ◽  
Romain Simon ◽  
Olivier Beauchet ◽  
Mickael Dinomais ◽  
...  
Keyword(s):  
Older Adults ◽  
Vitamin D ◽  
Brain Mri ◽  
Serum Vitamin ◽  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Vitamin D Insufficiency ◽  
Anterior Cingulate ◽  
Posterior Cingulate ◽  
Significant Difference

Background: Vitamin D insufficiency is associated with brain changes, and cognitive and mobility declines in older adults. Method: Two hundred and fifteen Caucasian older community-dwellers (mean±SD, 72.1±5.5years; 40% female) received a blood test and brain MRI. The thickness of perigenual anterior cingulate cortex, midcingulate cortex and posterior cingulate cortex was measured using FreeSurfer from T1-weighted MR images. Age, gender, education, BMI, mean arterial pressure, comorbidities, use of vitamin D supplements or anti-vascular drugs, MMSE, GDS, IADL, serum calcium and vitamin B9 concentrations, creatinine clearance were used as covariables. Results: Participants with vitamin D insufficiency (n=80) had thinner total cingulate thickness than the others (24.6±1.9mm versus 25.3±1.4mm, P=0.001); a significant difference found for all 3 regions. Vitamin D insufficiency was cross-sectionally associated with a decreased total cingulate thickness (β=- 0.49, P=0.028). Serum 25OHD concentration correlated positively with the thickness of perigenual anterior (P=0.011), midcingulate (P=0.013) and posterior cingulate cortex (P=0.021). Conclusion: Vitamin D insufficiency was associated with thinner cingulate cortex in the studied sample of older adults. These findings provide insight into the pathophysiology of cognitive and mobility declines in older adults with vitamin D insufficiency.

scholarly journals Long-term Chinese calligraphic handwriting reshapes the posterior cingulate cortex: A VBM study

PLoS ONE ◽  
2019 ◽  
Vol 14 (4) ◽  
pp. e0214917
Author(s):  
Wen Chen ◽  
Chuansheng Chen ◽  
Pin Yang ◽  
Suyu Bi ◽  
Jin Liu ◽  
...  
Keyword(s):  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Posterior Cingulate

scholarly journals HIV Distal Neuropathic Pain Is Associated with Smaller Ventral Posterior Cingulate Cortex

Pain Medicine ◽  
2016 ◽  
pp. pnw180 ◽  
Author(s):  
John R. Keltner ◽  
Colm G. Connolly ◽  
Florin Vaida ◽  
Mark Jenkinson ◽  
Christine Fennema-Notestine ◽  
...  
Keyword(s):  
Neuropathic Pain ◽  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Posterior Cingulate

scholarly journals Correlation between Traits of Emotion-Based Impulsivity and Intrinsic Default-Mode Network Activity

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Jizheng Zhao ◽  
Dardo Tomasi ◽  
Corinde E. Wiers ◽  
Ehsan Shokri-Kojori ◽  
Şükrü B. Demiral ◽  
...  
Keyword(s):  
Brain Activity ◽  
Low Frequency ◽  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Anterior Cingulate ◽  
Network Activity ◽  
High Risk Behaviors ◽  
Posterior Cingulate ◽  
Healthy Humans ◽  
Dorsolateral Prefrontal

Negative urgency (NU) and positive urgency (PU) are implicated in several high-risk behaviors, such as eating disorders, substance use disorders, and nonsuicidal self-injury behavior. The current study aimed to explore the possible link between trait of urgency and brain activity at rest. We assessed the amplitude of low-frequency fluctuations (ALFF) of the resting-state functional magnetic resonance imaging (fMRI) signal in 85 healthy volunteers. Trait urgency measures were related to ALFF in the lateral orbitofrontal cortex, dorsolateral prefrontal cortex, ventral and dorsal medial frontal cortex, anterior cingulate, and posterior cingulate cortex/precuneus. In addition, trait urgency measures showed significant correlations with the functional connectivity of the posterior cingulate cortex/precuneus seed with the thalamus and midbrain region. These findings suggest an association between intrinsic brain activity and impulsive behaviors in healthy humans.

Quantitative cytoarchitectonics of the posterior cingulate cortex in primates

1986 ◽  
Vol 253 (4) ◽  
pp. 514-524 ◽  
Author(s):  
Karl Zilles ◽  
Este Armstrong ◽  
Gottfried Schlaug ◽  
Axel Schleicher
Keyword(s):  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Posterior Cingulate ◽  
Quantitative Cytoarchitectonics

[IC-P-149]: LACK OF SELF-AWARENESS OF COGNITIVE DEFICITS IN ALZHEIMER's DISEASE IS RELATED TO DECREASED METABOLISM IN THE POSTERIOR CINGULATE CORTEX

2017 ◽  
Vol 13 (7S_Part_2) ◽  
pp. P112-P113
Author(s):  
Joseph Therriault ◽  
Tharick A. Pascoal ◽  
Kok Pin Ng ◽  
Sulantha S. Mathotaarachchi ◽  
Min Su Kang ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cognitive Deficits ◽  
Cingulate Cortex ◽  
Posterior Cingulate Cortex ◽  
Self Awareness ◽  
Posterior Cingulate
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