A5091055664- Neural dynamics and brain function
- Functional Brain Connectivity Studies
- Nonlinear Dynamics and Pattern Formation
- Chaos control and synchronization
- Advanced Neuroimaging Techniques and Applications
- EEG and Brain-Computer Interfaces
- Advanced MRI Techniques and Applications
- stochastic dynamics and bifurcation
- Neural and Behavioral Psychology Studies
- Neural Networks and Applications
- Traumatic Brain Injury Research
- Neurological disorders and treatments
- Advanced Memory and Neural Computing
- Dementia and Cognitive Impairment Research
- Psychosomatic Disorders and Their Treatments
- Complex Systems and Time Series Analysis
- Neural Networks and Reservoir Computing
- Parkinson's Disease Mechanisms and Treatments
- Fetal and Pediatric Neurological Disorders
- Quantum chaos and dynamical systems
- Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
- Memory and Neural Mechanisms
- Genetic Neurodegenerative Diseases
- Animal Behavior and Welfare Studies
- Atomic and Subatomic Physics Research
Tokyo Institute of Technology
2016-2025
University of Trento
2016-2025
University of Electronic Science and Technology of China
2023-2025
Fondazione IRCCS Istituto Neurologico Carlo Besta
2010-2021
Institute of Nuclear Physics, Polish Academy of Sciences
2007-2020
University of Catania
2020
National Center of Neurology and Psychiatry
2020
Research Organization of Information and Systems
2020
NTT Basic Research Laboratories
2020
Japan Science and Technology Agency
2020
Cognitions and emotions can be influenced by bodily physiology. Here, we investigated whether the processing of brief fear stimuli is selectively gated their timing in relation to individual heartbeats. Emotional neutral faces were presented human volunteers at cardiac systole, when ejection blood from heart causes arterial baroreceptors signal centrally strength each heartbeat, diastole, period between heartbeats are quiescent. Participants performed behavioral neuroimaging tasks determine...
Memristors have been extensively studied in the field of nonlinear dynamics. However, dynamic regulation mechanism memristor-induced hyperchaotic oscillation has not focused. In this article, a 5-D memristive oscillator with amplitude control and uncountably many attractors reflecting arbitrary relocation dynamics is constructed analyzed. system, one parameter embedded memristor responsible for partial control. An independent constant applied offset boosting two system variables. Also,...
<b>BACKGROUND AND PURPOSE:</b> Diffusion tensor imaging (DTI) offers a unique window on the connectivity changes, extending beyond basal ganglia, which accompany cognitive symptoms of Parkinson disease (PD). The primary purpose this study was to assess microstructural damage cerebral white matter occurring in idiopathic PD. <b>MATERIALS METHODS:</b> Our sample included patients with PD without dementia (<i>n</i> = 10; Hoehn and Yahr stages I II; Unified Disease Rating Scale, 20.5 ± 8.3;...
Abstract Mental functions are influenced by states of physiological arousal. Afferent neural activity from arterial baroreceptors at systole conveys the strength and timing individual heartbeats to brain. We presented words under limited attentional resources time‐locked different phases cardiac cycle, test a hypothesis that natural baroreceptor stimulation influences detection subsequent memory words. show for around was decreased relative diastole. The deleterious effect greater detected...
Atypical neuropathological and molecular phenotypes of bovine spongiform encephalopathy (BSE) have recently been identified in different countries. One these phenotypes, named "amyloidotic" (BASE), differs from classical BSE for the occurrence a distinct type disease-associated prion protein (PrP), termed PrPSc, presence PrP amyloid plaques. Here, we show that agents responsible BASE possess biological properties upon transmission to transgenic mice expressing inbred lines nontransgenic...
Influential models highlight the central integration of bodily arousal with emotion. Some emotions, notably disgust, are more closely coupled to visceral state than others. Cardiac baroreceptors, activated at systole within each cardiac cycle, provide short-term feedback. Here we explored how phasic baroreceptor activation may alter appraisal brief emotional stimuli and consequent cardiovascular reactions. We used functional MRI (fMRI) measure brain responses face presented before during...
<h3>BACKGROUND AND PURPOSE:</h3> The connectivity across brain regions can be evaluated through fMRI either by using ICA or means of correlation analysis time courses measured in predefined ROIs. purpose this study was to investigate quantitatively the correspondence between information provided 2 techniques. <h3>MATERIALS METHODS:</h3> In study, resting-state data from 40 healthy participants were independently analyzed spatial and ROI−based analysis. To assess results methods, for all...
Based on 1-minute price changes recorded since year 2012, the fluctuation properties of rapidly-emerging Bitcoin (BTC) market are assessed over chosen sub-periods, in terms return distributions, volatility autocorrelation, Hurst exponents and multiscaling effects. The findings compared to stylized facts mature world markets. While early trading was affected by system-specific irregularities, it is found that months preceding Apr 2018 all these statistical indicators approach features...
Controlled slow breathing (at 6/min, a rate frequently adopted during yoga practice) can benefit cardiovascular function, including responses to hypoxia. We tested the neural substrates of cardiorespiratory control in humans volitional controlled and hypoxic challenge using functional magnetic resonance imaging (fMRI). Twenty healthy volunteers were scanned paced (slow normal rate) spontaneous normoxic (13% inspired O2) air. Cardiovascular respiratory measures acquired concurrently,...
Abstract Free water elimination (FWE) in brain diffusion MRI has been shown to improve tissue specificity human white matter characterization both health and disease. Relative the classical tensor imaging (DTI) model, FWE is also expected increase sensitivity microstructural changes longitudinal studies. However, it not clear if these two models differ their test–retest reproducibility. This study compares a bi‐tensor model for with DTI by extending previous longitudinal‐reproducibility 3T...
Spontaneous intracranial hypotension (SIH) is caused by leakage of CSF, and characterized on MRI brain sagging, dilatation veins dural sinuses, subdural fluid collections post-contrast enhancement the thickened dura. A few cases may present a very severe sagging through tentorial notch swelling diencephalic-mesencephalic structures, with absent or scarce enhancement. These patients have surprisingly neurological signs become drowsy even lapse into coma due to central herniation. We...
In recent years, the discovery that mutations in glial fibrillary acidic protein gene (GFAP) were responsible for Alexander disease (AD) brought recognition of adult cases. The purpose this study was to demonstrate MR imaging allows identification cases AD with onset (AOAD), which are remarkably different from infantile cases.In retrospective study, brain and spinal cord studies 11 patients AOAD (7 men, 4 women; age range, 26-64 years; mean age, 43.6 years), all but 1 genetically confirmed,...
<h3>BACKGROUND AND PURPOSE:</h3> It has been proposed that autism spectrums condition may represent a form of extreme male brain (EMB), notion supported by psychometric, behavioral, and endocrine evidence. Yet, limited data are presently available evaluating this hypothesis in terms neuroanatomy. Here, we investigated sex-related anatomic features adults with AS, "pure" not involving major developmental delay. <h3>MATERIALS METHODS:</h3> Males females AS healthy controls (<i>n =</i> 28 30,...
Resting state fMRI (rs-fMRI) has recently been considered as a possible complement or alternative to task-based (tb-fMRI) for presurgical mapping. However, evidence of its usefulness remains scant, because existing studies have investigated relatively small samples and focused primarily on qualitative evaluation. The aim this study is investigate the clinical rs-fMRI in context mapping motor functions, particular determine degree correspondence with tb-fMRI which, while not gold-standard,...
Emotional dysregulation is a core component of borderline personality disorder (BPD). Theoretical models suggest that deficits in labeling physiological sensations emotion contribute to affective instability BPD. Interoceptive awareness refers the ability perceive changes internal bodily states, and linked subjective experience control emotions. The authors tested whether differences interoceptive accounted for emotional Patients diagnosed with BPD (n = 24) were compared healthy controls 30)...
Brain near-infrared spectroscopy (NIRS) is an emerging neurophysiological tool that combines straightforward activity localization with cost-economy, portability and patient compatibility. NIRS proving its empirical utility across specific cognitive emotional paradigms. However, a potential limitation it not only sensitive to haemodynamic changes taking place in the cortex, task-related cardiovascular responses expressed perfusion of extracranial layers may be confounding. Existing...
Joint hypermobility is overrepresented among people with anxiety and can be associated abnormal autonomic reactivity. We tested for associations between regional cerebral grey matter in 72 healthy volunteers using voxel-based morphometry of structural brain scans. Strikingly, bilateral amygdala volume distinguished those from without hypermobility. The group scored higher interoceptive sensitivity yet were not significantly more anxious. Our findings specifically link to the integrity a...
Understanding residual brain function in disorders of consciousness poses extraordinary challenges, and imaging examinations are needed to complement clinical assessment. The default-mode network (DMN) is known be dysfunctional, although correlation with level remains controversial. We investigated DMN activity resting-state functional magnetic resonance (rs-fMRI), alongside its structural metabolic integrity, aiming elucidate the corresponding associations assessment.We enrolled 119...