19 papers · ranked by Valyu relevance
Binghao Yang, Guangzong Chen
The foundation of cognitive flexibility and higher-order intelligence lies in the functional structure and activity of brain networks, which can be dynamically configured by both external environments and internal states. However, decoding these dynamics from high-dimensional neural data remains a challenge. In this…
Georgios Bardanikas, Shrabasti Jana, Nicolas Meirhaeghe, Frederic Barthelemy + 4 more
The transformation of sensory information into goal-directed motor plans and actions is known to emerge from coordinated activity between parietal and motor areas. Within this network, anticipation plays a critical role, enabling the brain to predict upcoming sensory inputs and prepare appropriate actions before…
Alessandro Salatiello
Coordinating multi-articulated bodies to generate purposeful movement is a formidable computational challenge. Yet the human motor system performs this task robustly in dynamic, uncertain environments, despite noisy and delayed feedback, slow actuators, and strict energetic constraints. A central question is what…
Jimin Park, Sangjun Lee, Seonghun Park, Chany Lee
Although zero-phase lag between cortical regions has been generally regarded as the optimal state, it has also been suggested that a non-zero phase delay of electroencephalography (EEG) signals in the gamma frequency band between bilateral parietal areas may have a significant meaning. Indeed, the phase delays of the…
Namarta Kapil, Taewon Kim, Samah Gassass, Ruiwen Zhou + 10 more
Neural mechanisms underlying handedness remain poorly understood. We used functional magnetic resonance imaging (fMRI) to study performance of a visually guided drawing task with each hand. We hypothesized that the left superior parietal lobule supports drawing with either hand, and individuals with chronic peripheral…
William C. Kwan, Angela Y. Fan, Andrea J Romanowski, Inaki-Carril Mundinano + 2 more
The medial subdivision of the inferior pulvinar (PIm) has been implicated in motion processing, visuomotor integration, and residual visual function, yet a comprehensive account of its cortical inputs remains unresolved. Previous studies often relied on indirect cortical injections or tracer deposits spanning multiple…
Sang Seok Yeo, Dong Hyun Byun, Fang He, Domenico De Berardis
(1) Background: The effects of posterior parietal cortex (PPC)-targeted transcranial direct current stimulation (tDCS) on postural stability and cortical activity remain unclear. Therefore, this study aimed to investigate and compare changes in cortical activity and postural stability before and following tDCS…
Huijuan Wan, Xuemin Zhao, Wenhan Hu, Chao Zhang + 8 more
1## Introduction Parietal lobe epilepsy (PLE) is a complex focal epilepsy with extensive synaptic networks and intricate connectivity to other brain regions , which can contribute to misleading scalp electroencephalography (EEG) readings and clinical semiological features . Owing to the difficulty in localizing the…
Anna Marie Muellen, Renate Schweizer
The pli-de-passage fronto-pariétal moyen (PPfpm), a deep cerebral fold of the human brain, presents as a common though small elevation at the central sulcus (CS) fundus where it connects the pre- and postcentral gyri at the level of the sensorimotor hand area. Given the PPfpm's location, single case-reports of its…
Supriya Bordoloi, Cota Navin Gupta, Shyamanta M. Hazarika
—This study investigates the causal neural dynamics by which affordance representations influence action language comprehension. In this study, 18 participants observed stimuli displayed in two conditions during the experiment: text-only (e.g., 'Hit with a hammer') and video+text (visual clips with matching phrases).…
Qimeng Wang, Jon H. Kaas, Iwona Stepniewska
To better understand the cortical connections and organization of visual areas in galagos, we examined the interconnections among cortical visual fields and their relationships with posterior parietal cortex (PPC) and temporal regions associated with dorsal and ventral streams of visual processing. In five galagos, two…
Jiajia Li, Tian Guo, Fan Li, Huichao Ding + 2 more
- 1 Department of Artificial Intelligence and Automation, School of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China - 2 Department of Neurosurgery, PLA General Hospital of Central Theater Command, Wuhan, 430070, China - 3 The First School of Clinical Medicine…
Anna Williams, Patricia Hoyos, Ruggaya Musa, Jesse Gomez
The folding of the cortical sheet within the human brain is related to its functional organization at the level of major sulci and gyri. Yet how smaller folding features hidden within the two thirds of cortex buried in sulci may relate to functional specialization of the cortex is not clear. Using human visual cortex…
Oliver Vij, Chee Yen Soon, Christopher Smith, Malcolm Neil + 2 more
Purpose Superficial temporal artery (STA) biopsy remains an important diagnostic investigation for giant cell (temporal) arteritis. Incisions should optimise STA exposure while avoiding the temporal branch of the facial nerve. However, the widely used Gillies incision, a 2 cm temporal incision 2.5 cm anterior and…
Yu Jin, Ronaldo Garcia Reyes, Ying Wang, Min Li + 2 more
Source-space electroencephalography (EEG) connectomics aims to estimate interactions among cortical generators from sensor cross-spectra that are mixed by the head and lead field. This task is difficult because marginal source covariance or coherence can retain leakage, common drive and indirect mediation, whereas…
Guttmann-Flury, Eva, Zhao, Jian + 2 more
— EEG-based Brain-Computer Interfaces (BCIs) frequently face spatial specificity limitations in detecting singletrial P300 potentials, a neurophysiological hallmark leveraged for both BCI control and neurodegenerative disease diagnostics. We present a novel framework combining eLORETA source localization with…
Jian Li, Karthik Gopinath, Brian L. Edlow, Adrian V. Dalca + 1 more
Cortical surface parcellation is a fundamental task in both basic neuroscience research and clinical applications, enabling more accurate mapping of brain regions. Model-based and learning-based approaches for automated parcellation alleviate the need for manual labeling. Despite the advancement in parcellation…
William C. Kwan, Angela Y. Fan, Andrea J Romanowski, Inaki-Carril Mundinano + 2 more
The medial subdivision of the inferior pulvinar (PIm) has been implicated in motion processing, visuomotor integration, and residual visual function, yet a comprehensive account of its cortical inputs remains unresolved. Previous studies often relied on indirect cortical injections or tracer deposits spanning multiple…
Juliana G. M. Soares, Amaro R. A. Correia, Ricardo Gattass, Bruss Lima
With the advances in our ability to perturb brain activity in recent years, new stimulation techniques have become essential tools in human neuroscience. Non-invasive stimulation methods, such as transcranial magnetic stimulation (TMS), as well as deep brain stimulation (DBS) delivered invasively to access deep brain…