Evoked EEG Responses to TMS Targeting Regions Outside the Primary Motor Cortex and Their Test–Retest Reliability DOI Creative Commons
Yufei Song,

Pedro Caldana Gordon,

Johanna Metsomaa

и другие.

Brain Topography, Год журнала: 2023, Номер 37(1), С. 19 - 36

Опубликована: Ноя. 23, 2023

Abstract Transcranial magnetic stimulation (TMS)–evoked electroencephalography (EEG) potentials (TEPs) provide unique insights into cortical excitability and connectivity. However, confounding EEG signals from auditory somatosensory co-stimulation complicate TEP interpretation. Our optimized sham procedure established with TMS of primary motor cortex (Gordon in JAMA 245:118708, 2021) differentiates direct responses to those caused by peripheral sensory inputs. Using this approach, study aimed investigate TEPs their test–retest reliability when targeting regions outside the cortex, specifically left angular gyrus, supplementary area, medial prefrontal cortex. We conducted three identical TMS–EEG sessions one week apart involving 24 healthy participants. In each session, we targeted areas separately using a figure-of-eight coil for active TMS, while second away head produced input TMS. Masking noise electric scalp were applied both conditions achieve matched High was observed conditions. declined ‘cleaned’ TEPs, resulting subtraction evoked response active, particularly latencies > 100 ms following pulse. Significant differences found between at < 90 all areas, exhibiting distinct spatiotemporal characteristics specific target. conclusion, our effectively reveals activation brain Moreover, demonstrate impact inputs on TMS-EEG responses.

Язык: Английский

Advances in Neuroimaging and Deep Learning for Emotion Detection: A Systematic Review of Cognitive Neuroscience and Algorithmic Innovations DOI Creative Commons
Constantinos Halkiopoulos, Evgenia Gkintoni,

Anthimos Aroutzidis

и другие.

Diagnostics, Год журнала: 2025, Номер 15(4), С. 456 - 456

Опубликована: Фев. 13, 2025

Background/Objectives: The following systematic review integrates neuroimaging techniques with deep learning approaches concerning emotion detection. It, therefore, aims to merge cognitive neuroscience insights advanced algorithmic methods in pursuit of an enhanced understanding and applications recognition. Methods: study was conducted PRISMA guidelines, involving a rigorous selection process that resulted the inclusion 64 empirical studies explore modalities such as fMRI, EEG, MEG, discussing their capabilities limitations It further evaluates architectures, including neural networks, CNNs, GANs, terms roles classifying emotions from various domains: human-computer interaction, mental health, marketing, more. Ethical practical challenges implementing these systems are also analyzed. Results: identifies fMRI powerful but resource-intensive modality, while EEG MEG more accessible high temporal resolution limited by spatial accuracy. Deep models, especially CNNs have performed well emotions, though they do not always require large diverse datasets. Combining data behavioral features improves classification performance. However, ethical challenges, privacy bias, remain significant concerns. Conclusions: has emphasized efficiencies detection, technical were highlighted. Future research should integrate advances, establish innovative enhance system reliability applicability.

Язык: Английский

Процитировано

6

Dual-MEG interbrain synchronization during turn-taking verbal interactions between mothers and children DOI Creative Commons

Jo-Fu Lotus Lin,

Toshiaki Imada,

Andrew N. Meltzoff

и другие.

Cerebral Cortex, Год журнала: 2022, Номер 33(7), С. 4116 - 4134

Опубликована: Сен. 20, 2022

Abstract Verbal interaction and imitation are essential for language learning development in young children. However, it is unclear how mother–child dyads synchronize oscillatory neural activity at the cortical level turn-based speech interactions. Our study investigated interbrain synchrony pairs during a turn-taking paradigm of verbal imitation. A dual-MEG (magnetoencephalography) setup was used to measure brain from interactive simultaneously. Interpersonal synchronization compared between socially noninteractive tasks (passive listening pure tones). Interbrain networks showed increased conditions theta alpha bands. Enhanced interpersonal observed right angular gyrus, triangular, left opercular parts inferior frontal gyrus. Moreover, these parietal regions appear be hubs exhibiting high number connections. These areas could serve as marker component social communication. The present first investigate interactions using setup. results advance our understanding suggest role “gating” learning.

Язык: Английский

Процитировано

18

The angular gyrus: a special issue on its complex anatomy and function DOI Open Access
Kathleen S. Rockland, William W. Graves

Brain Structure and Function, Год журнала: 2022, Номер 228(1), С. 1 - 5

Опубликована: Ноя. 11, 2022

Язык: Английский

Процитировано

18

Adaptive short-term plasticity in the typical reading network DOI Creative Commons
Sabrina Turker, Philipp Kuhnke, F Schmid

и другие.

NeuroImage, Год журнала: 2023, Номер 281, С. 120373 - 120373

Опубликована: Сен. 10, 2023

The left temporo-parietal cortex (TPC) is crucial for phonological decoding, i.e., learning and retaining sound-letter mappings, appears hypoactive in dyslexia. Here, we tested the causal contribution of this area reading typical readers with transcranial magnetic stimulation (TMS) explored network's response fMRI. By investigating underlying neural correlates stimulation-induced modulations network, can help improve targeted interventions individuals 28 adult overtly read simple complex words pseudowords during fMRI after effective sham TMS over TPC. To explore differences functional activation connectivity within performed univariate multivariate analyses, as well dynamic modeling. While TMS-induced effects on performance brain showed large individual variability, analyses revealed a shift inferior frontal pseudoword TMS. Furthermore, increased from ventral occipito-temporal to In absence performance, observed changes task-related activity increase coupling between two core nodes suggest successful short-term compensatory reorganization network following disruption. This study first neurophysiological induced by node while performing an overt task. We provide evidence remote emphasize relevance interactions network.

Язык: Английский

Процитировано

10

Causal evidence for a coordinated temporal interplay within the language network DOI Creative Commons
Joëlle A. M. Schroën, Thomas C. Gunter, Ole Numssen

и другие.

Proceedings of the National Academy of Sciences, Год журнала: 2023, Номер 120(47)

Опубликована: Ноя. 14, 2023

Recent neurobiological models on language suggest that auditory sentence comprehension is supported by a coordinated temporal interplay within left-dominant brain network, including the posterior inferior frontal gyrus (pIFG), superior and sulcus (pSTG/STS), angular (AG). Here, we probed timing causal relevance of between these regions means concurrent transcranial magnetic stimulation electroencephalography (TMS-EEG). Our TMS-EEG experiments reveal region- time-specific evidence for bidirectional information flow from left pSTG/STS to pIFG back during processing. Adapting condition-and-perturb approach, our findings further can be AG in state-dependent manner.

Язык: Английский

Процитировано

10

Neural network localization in Parkinson’s disease with impulse control disorders DOI Creative Commons
Huaxia Yang,

Siyu Gu,

Haihua Sun

и другие.

Frontiers in Aging Neuroscience, Год журнала: 2025, Номер 17

Опубликована: Март 28, 2025

There is a huge heterogeneity of magnetic resonance imaging findings in Parkinson's disease (PD) with impulse control disorders (ICDs) studies. Here, we hypothesized that brain regions identified by structural and functional studies PD ICDs could be reconciled common network. In this study, an initial systematic literature review was conducted to collect evaluate whole-brain related ICDs. We subsequently utilized the Human Connectome Project (HCP) dataset (n = 1,093) novel connectivity network mapping (FCNM) technique identify affected A total 19 25 contrasts, incorporating 345 individuals ICDs, 787 without were included analysis. By using HCP FCNM technique, ultimately aberrant neural networks predominantly involve default mode (middle inferior temporal gyrus, anterior cingulate cortex, angular gyrus) subcortical (caudate nucleus). This study suggests heterogeneous neuroimaging can attributed shared abnormalities networks. These dysfunctions are associated impaired self-regulation, decision-making, heightened impulsivity Our integrate diverse results from previous studies, providing clearer understanding neurobiological mechanisms underlying at level.

Язык: Английский

Процитировано

0

Alterations of spontaneous brain activity in type 2 diabetes mellitus without mild cognitive impairment: a resting-state functional magnetic resonance study DOI Creative Commons
Qianru Wang, Chuanke Hou, Xingyuan Jiang

и другие.

Frontiers in Human Neuroscience, Год журнала: 2024, Номер 17

Опубликована: Янв. 11, 2024

Background Type 2 diabetes mellitus (T2DM) has been demonstrated an increased risk factor of cognitive impairment or even dementia. Kinds resting-state functional magnetic resonance imaging indices have proposed and used to investigate the brain mechanism underlying diabetic impairment. This study aimed explore early changes in spontaneous neural activity among T2DM patients without by means multiple rs-fMRI indices. Methods age-, sex-, education matched control subjects were included this study. Three indices, namely amplitude low-frequency fluctuation (ALFF), regional homogeneity (ReHo) voxel-mirrored homotopic connectivity (VMHC) computed after image pre-processing. The Montreal Cognitive Assessment (MoCA) was performed distinguish normal cognition. Brain volume also evaluated. Correlation analyses conducted any relationship clinical characteristics. Results detected significantly decreased right angular left prefrontal gyrus including middle superior frontal gyrus. Increased activities observed caudate supplementary motor area. No correlation between characteristics survived comparison correction. But we a significant, but ALFF ReHo values reported areas. Conclusion combination ALFF, VMHC abnormal regions which These results may enhance our understanding at stage.

Язык: Английский

Процитировано

3

Altered effective connectivity on rapid automatized naming deficits in Chinese children with developmental dyslexia: An rs-fMRI study with Ganger causality analysis DOI

Si Tan,

Simin Deng, Xiaojing Song

и другие.

Journal of Psychiatric Research, Год журнала: 2024, Номер 175, С. 235 - 242

Опубликована: Май 11, 2024

Язык: Английский

Процитировано

3

Frequency-specific directed connectivity between the hippocampus and parietal cortex during verbal and spatial episodic memory: an intracranial EEG replication DOI
Anup Das, Vinod Menon

Cerebral Cortex, Год журнала: 2024, Номер 34(7)

Опубликована: Июль 1, 2024

Abstract Hippocampus-parietal cortex circuits are thought to play a crucial role in memory and attention, but their neural basis remains poorly understood. We employed intracranial electroencephalography (iEEG) investigate the neurophysiological underpinning of these across three tasks spanning verbal spatial domains. uncovered consistent pattern higher causal directed connectivity from hippocampus both lateral parietal (supramarginal angular gyrus) medial (posterior cingulate cortex) delta–theta band during encoding recall. This was independent activation or suppression states cortex. Crucially, supramarginal gyrus enhanced participants with recall, highlighting its behavioral significance. Our findings align attention-to-memory model, which posits that attention directs cognitive resources toward pertinent information formation. The robustness results demonstrated through Bayesian replication analysis recall periods tasks. study sheds light on casual signaling within hippocampus–parietal circuits, broadening our understanding critical roles human cognition.

Язык: Английский

Процитировано

3

Altered angular gyrus activation during the digit symbol substitution test in people living with HIV: beyond information processing speed deficits DOI Creative Commons

Dan-Chao Cai,

Pengrui Song,

Fengxiang Song

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Фев. 17, 2025

Speed-of-information processing (SIP) is often impaired in people living with HIV (PLWH), typically assessed through tests such as the digit symbol (DS) and search, which also rely on motor executive functions. This study aims to disentangle SIP deficits from other cognitive impairments PLWH using an MRI-adapted substitution test (mDSST). Fifty-seven (34.7 ± 11.2 years) 50 age-matched without (PLWoH, 31.8 9.9 completed standardized neuropsychological mDSST. Behavioral performances brain activations were compared, correlations drawn between group-differentiating clinical ratings of domains. Results showed that performed worse DS made fewer responses, was slower mDSST, correlating ratings. Notably, greater attention compared PLWoH, rather than or motor. exhibited primary cortex activation reduced right angular gyrus activation. These findings suggest SIP-related may be partially linked abnormal visuospatial attention, reflected by activation, higher potentially serving a compensatory mechanism. Future studies should explore whether prefrontal regions implicated are more severely affected PLWH.

Язык: Английский

Процитировано

0