Human Brain Mapping
September 15, 2023
Alexander N. Silchenko, Felix Hoffstaedter, Simon Bodo Eickhoff
5 citations
Interactions within brain networks are inherently directional, which are inaccessible to classical functional connectivity estimates from resting-state functional magnetic resonance imaging (fMRI) but can be detected using spectral dynamic causal modeling (DCM). The sample size and unavoidable presence of nuisance signals during fMRI measurement are the two important factors influencing the...
Network Neuroscience
September 15, 2023
Daniela Jardim Pereira, João Pereira, Alexandre Sayal et al.
5 citations
Abstract Real-time functional magnetic resonance imaging (rt-fMRI) neurofeedback (NF), a training method for the self-regulation of brain activity, has shown promising results as a neurorehabilitation tool, depending on the ability of the patient to succeed in neuromodulation. This study explores connectivity-based structural and functional success predictors in an NF n-back working memory...
bioRxiv
September 1, 2023
Trang-Anh Estelle Nghiem, Byeongwook Lee, Tzu-Hao Harry Chao et al.
preprint
The default mode network (DMN) is a large-scale brain network known to be suppressed during a wide range of cognitive tasks. However, our comprehension of its role in naturalistic and unconstrained behaviors has remained elusive because most research on the DMN has been conducted within the restrictive confines of MRI scanners. Here we use multisite GCaMP fiber photometry with simultaneous...
Neuroscience & Biobehavioral Reviews
September 1, 2023
Carla Soares, Gerardo Gonzalo, João Castelhano et al.
The Default Mode Network (DMN) and the Theory of Mind (ToM) networks play a crucial role in our understanding of the neurocognition of the self. The DMN is commonly associated with introspection, while the ToM is involved in perspective-taking. There is no research investigating the overlap between the DMN and ToM in relation to causal effects such as induced by psychedelics, and their precise...
Scientific Reports
August 30, 2023
Chao S. Hu, Yanbin Zheng, Guang-Heng Dong et al.
Default mode network (DMN) may be associated with wisdom (i.e., mature understanding of life featured by perspectival metacognition) when advising from a self-referential perspective due to the involvement of the DMN in reflecting on personal life experiences. After a resting-state functional MRI scan, 52 adults advised some youths going through life dilemmas, half from a second-person...
Brain Sciences
August 26, 2023
Shinyoung Jung, Joo Yeon Kim, Suhyeon Jo et al.
Adaptive behavior in the environment requires a high level of cognitive control to bias limited processing resources to behaviorally significant stimuli. Such control has been associated with a set of brain regions located in the fronto-parietal cortex (multiple demand network), whose activity was found to increase as the control demand for a task increases. In contrast, another set of regions,...
bioRxiv (Cold Spring Harbor Laboratory)
August 15, 2023
Valeria Oliva, Gabriel Riegner, Jon G Dean et al.
1 citation
preprint
The authors discovered an error in the primary analysis and have withdrawn the results from this version of the investigation.
Cerebral Cortex
August 1, 2023
Feifei Zhang, Bo Liu, Yinbo Shao et al.
Aluminum (Al) is an important environmental pathogenic factor for neurodegenerative diseases, especially mild cognitive impairment (MCI). The aim of this study was to evaluate the gray matter volume of structural covariance network alterations in patients with Al-induced MCI. Male subjects who had been exposed to Al for >10 years were included in the present study. The plasma Al concentration,...
Cortex
August 2023
Rebecca L Jackson, Gina F. Humphreys, Grace E Rice et al.
Resting-state network research is extremely influential, yet the functions of many networks remain unknown. In part, this is due to typical (e.g., univariate) analyses independently testing the function of individual regions and not examining the full set of regions that form a network whilst co-activated. Connectivity is dynamic and the function of a region may change based on its current...
Behavioral and Brain Functions
July 15, 2023
Yidi Chen, Jinjin Ma, Huanya Zhu et al.
Stressful events and meaning-making toward them play an important role in adolescents' life and growth. However, ignoring positive stressful events leads to negativity bias; further, the neural mechanisms of meaning-making are unclear. We aimed to verify the mediating role of meaning-making in stressful events and stress-related growth and the function of the default mode network (DMN) during...