Results 111 to 120 of about 208,751 (374)

Cortical Connectivity Maps Reveal Anatomically Distinct Areas in the Parietal Cortex of the Rat

Frontiers in Neural Circuits, 2015
A central feature of theories of spatial navigation involves the representation of spatial relationships between objects in complex environments. The parietal cortex has long been linked to the processing of spatial visual information and recent evidence
Aaron eWilber, Aaron eWilber, Benjamin J Clark, Benjamin J Clark, Alexis J Demecha, Lilia eMesina, Jessica M. Vos, Bruce L McNaughton, Bruce L McNaughton   +8 more
doaj   +1 more source

Activation in a frontoparietal cortical network underlies individual differences in the performance of an embedded figures task. [PDF]

PLoS ONE, 2011
The Embedded Figures Test (EFT) requires observers to search for a simple geometric shape hidden inside a more complex figure. Surprisingly, performance in the EFT is negatively correlated with susceptibility to illusions of spatial orientation, such as ...
Elizabeth Walter, Paul Dassonville
doaj   +1 more source

Aging and the Spectral Properties of Brain Hemodynamics

Advanced Science, EarlyView.
As the brain ages, its metabolic demands decline—but not uniformly. Here, spectral slope flattening of resting‐state fMRI signals is proposed as a potential biomarker of pathologic brain aging. A subset of older adults diverges from youthful spectral and metabolic patterns, with changes linked to frontal white matter pathology and regional loss of ...
Ki Yun Park, Abraham Z. Snyder, Manu S. Goyal, Timothy O. Laumann, John J. Lee, Babatunde Adeyemo, Nicholas Metcalf, Andrei G. Vlassenko, Joshua S. Shimony, Eric C. Leuthardt   +9 more
wiley   +1 more source

Studying the Role of Human Parietal Cortex in Visuospatial Attention with Concurrent TMS-fMRI [PDF]

, 2017
Combining transcranial magnetic stimulation (TMS) with concurrent functional magnetic resonance imaging (fMRI) allows study of how local brain stimulation may causally affect activity in remote brain regions.
Bestmann, Sven, Bjoertomt, Otto, Blankenburg, Felix, Deichmann, Ralf, Driver, Jon, Josephs, Oliver, Ruff, Christian C.   +6 more
core  

Osteoblast‐CD4+ CTL Crosstalk Mediated by SIRT1/DAAM2 Axis Prevents Age‐Related Bone Loss

Advanced Science, EarlyView.
In the osteoblastic niche, SIRT1 activates and recruits CD4+ CTLs by increasing DAAM2 expression via EZH2 deacetylation and boosting the secretion of key chemokines, such as CCL3, CCL5, and CXCL10. Then, CD4+ CTL directly eliminates senescent osteoblasts in an MHC‐II‐dependent way, thereby slowing down the process of bone ageing and effectively ...
Bin Yang, Guofu Zhang, Yizhou Zhu, Jingcheng Wang, Xinmin Feng, Wenyong Fei, Jihang Dai, Le Hu, Yi Zhang, Jun Cai, Binjia Ruan, Yue Jin, Fanhao Wei, Gang Lu, Dongan Wang, Jason Pui Yin Cheung, Graham Ka Hon Shea, Hao Chen, Kelvin Wai Kwok Yeung, Lei Wang, Yongxiang Wang   +20 more
wiley   +1 more source

Training‐Free Regulation of Grasping by Intracortical Tactile Feedback Designed via S1‐M1 Communication

Advanced Science, EarlyView.
During object grasping in macaques, information flow between the primary sensory cortex (S1) and the primary motor cortex (M1) is modulated by tactile properties of the target. Intracortical micro‐stimulation in S1 reliably evokes M1 responses that resemble those naturally generated during grasping under specific tactile conditions.
Qi Zhang, Bing Liu, Zhemeng Wang, Jiayue Zhou, Xingyi Yang, Qian Zhou, Yuwei Zhao, Siwei Li, Jin Zhou, Changyong Wang   +9 more
wiley   +1 more source

A MEG Study on the Processing of Time and Quantity: Parietal Overlap but Functional Divergence

Frontiers in Psychology, 2019
A common magnitude system for the processing of time and numerosity, supported by areas in the posterior parietal cortex, has been proposed by some authors. The present study aims to investigate possible intersections between the neural processing of non-
Elena Salillas, Milena Korostenskaja, Milena Korostenskaja, Milena Korostenskaja, Tara Kleineschay, Tara Kleineschay, Shivani Mehta, Alexandra Vega, Eduardo Martinez Castillo, Eduardo Martinez Castillo   +9 more
doaj   +1 more source

Speed tuning in the macaque posterior parietal cortex [PDF]

, 2017
ABSTRACTNeurons in the macaque posterior parietal cortex are known to encode the direction of self-motion. But do they also encode one’s speed? To test this, we performed neural recordings from area 7a while monkeys were passively translated or rotated at various speeds.
Avila, Eric, Lakshminarasimhan, Kaushik J, DeAngelis, Gregory C, Angelaki, Dora E   +3 more
openaire   +2 more sources

Functional brain organization of preparatory attentional control in visual search [PDF]

, 2013
Looking for an object that may be present in a cluttered visual display requires an advanced specification of that object to be created and then matched against the incoming visual input.
Bourke, Patrick, Brown, Steven, Liotti, Mario, Ngan, Elton   +3 more
core   +1 more source

A Novel Cranial Bone Transport Technique Repairs Skull Defect and Minimizes Brain Injury Outcome in Traumatic Brain Injury Rats

Advanced Science, EarlyView.
This study introduces a novel, safe, and effective surgical technique: Cranial bone transport (CBT) to improve traumatic brain injury (TBI) outcomes in rats. CBT significantly accelerated skull defect bone repair in addition to its promoting effects on neurological function recovery. This work provides an alternative therapy for patients suffering from
Shanshan Bai, Xuan Lu, Xu Yan, Han Su, Yuejun Lin, Zhaowei Jiang, Zhixian Zong, Haixing Wang, Leo Yik Chun Yan, Xiaoting Zhang, Ming Wang, Zhengmeng Yang, Jiakang Jin, Yaofeng Wang, Wayne Yuk‐Wai Lee, Xiaohua Jiang, Ho Ko, Lu Feng, Micky D. Tortorella, Sien Lin, Gang Li   +20 more
wiley   +1 more source