A5090724921- Functional Brain Connectivity Studies
- EEG and Brain-Computer Interfaces
- Neural dynamics and brain function
- Circadian rhythm and melatonin
- Neural and Behavioral Psychology Studies
- Sleep and Wakefulness Research
- Sleep and related disorders
- Sleep and Work-Related Fatigue
- Neurobiology of Language and Bilingualism
- Optical Imaging and Spectroscopy Techniques
- Visual perception and processing mechanisms
- Humor Studies and Applications
- Advanced Neuroimaging Techniques and Applications
- Heart Rate Variability and Autonomic Control
- Complex Systems and Time Series Analysis
- Medical Imaging Techniques and Applications
- Ergonomics and Musculoskeletal Disorders
- Air Quality Monitoring and Forecasting
- Advanced MRI Techniques and Applications
- Memory and Neural Mechanisms
- Human-Automation Interaction and Safety
- Language Development and Disorders
- Air Quality and Health Impacts
- Impact of Light on Environment and Health
- Reading and Literacy Development
Jagiellonian University
2016-2025
Hiroshima University
2021
Stanford University
2021
KU Leuven
2021
Churchill Hospital
2021
University of Oxford
2021
Douglas Mental Health University Institute
2021
University of Calgary
2021
Heating of gradient coils and passive shim components is a common cause instability in the B0 field, especially when intensive sequences are used. The aim study was to set benchmark for typical drift encountered during MR spectroscopy (MRS) assess need real-time field-frequency locking on MRI scanners by comparing field data from large number sites. A standardized protocol developed 80 participating sites using 99 3T 3 major vendors. Phantom water signals were acquired before after an EPI...
Abstract For bilinguals, speaking in a second language (L2) compared to the native (L1) is usually more difficult. In this study we asked whether difficulty L2 production reflects increased demands imposed on domain-general or core mechanisms. We brain response speech L1 and within two functionally-defined networks brain: Multiple Demand (MD) network network. found that was linked widespread increase of activity MD The did not show similarly robust differences processing languages, however,...
Attentional processes are fundamental to good cognitive functioning of human operators. The purpose this study was analyze the activity neuronal networks involved in orienting attention and executive control from perspective diurnal variability. Twenty-three healthy male volunteers meeting magnetic resonance (MR) inclusion criteria performed Stroop Color-Word task (block design) MR scanner five times/day (06:00, 10:00, 14:00, 18:00, 22:00 h). first scanning session scheduled 1–1.5 h after...
Both conflict and error processing have been linked to the midfrontal theta power (4-8 Hz) increase as indicated by EEG studies greater hemodynamic activity in anterior midcingulate cortex (aMCC) fMRI studies. Conveniently, source of was estimated or nearby aMCC. However, previous using concurrent recordings resting-state other cognitive tasks observed only a negative relationship between BOLD signal brain regions typically showing task-related deactivations. In this study, we used...
Abstract The posterior midline region (PMR)—considered a core of the default mode network—is deactivated during successful performance in different cognitive tasks. extent PMR‐deactivations is correlated with task‐demands and associated various domains. In domain episodic memory, functional MRI (fMRI) studies found that reliably predict learning (successful encoding). Yet it unclear what explains this relation. One intriguing possibility are partially mediated by respiratory artifacts. There...
Multiple aspects of brain functioning, including arousal, motivation, and cognitive performance, are governed by circadian rhythmicity. Although the recent rise in use magnetic resonance imaging (MRI) has enabled investigations into macroscopic correlates diurnal processes, neuroanatomical studies scarce. The current work investigated how time-of-day (TOD) impacts white (WM) grey matter (GM) volumes using voxel-based morphometry (VBM) a large dataset (
Prolonged periods of sleep restriction seem to be common in the contemporary world. Sleep loss causes perturbations circadian rhythmicity and degradation waking alertness as reflected attention, cognitive efficiency memory. Understanding whether how human brain recovers from chronic is important not only a scientific but also public health perspective. In this work we report on behavioral, motor, neurophysiological correlates healthy adults an unprecedented study conducted natural conditions...
Sleep is a complex and dynamic process for maintaining homeostasis, lack of sleep can disrupt whole-body functioning. No organ as vulnerable to the loss brain. Accordingly, we examined set task-based functional magnetic resonance imaging (fMRI) data by using graph theory assess brain topological changes in subjects state chronic restriction, then identified diurnal variability graph-theoretic measures. Task-based fMRI were collected 1.5T MR scanner from same participants on two days: after...
Individuals with schizophrenia exhibit problems understanding the figurative meaning of language. This study evaluates neural correlates diminished humor comprehension observed in schizophrenia. The included chronic (SCH) outpatients (n = 20), and sex, age education level matched healthy controls 20). fMRI punchline based task consisted 60 stories which 20 had funny, nonsensical neutral (not funny) punchlines. After punchlines were presented, participants asked to indicate whether story was...
: We sought to investigate whether systematic balance training modulates brain area activity responsible for postural control and influence brain-derived neurotrophic factor (BDNF) mRNA protein expression. Seventy-four older adults were randomly divided into three groups (mean age 65.34 ± 3.79 years, 30 females): Classic exercises (CBT), virtual reality (VBT), (CON). Neuroimaging studies performed at inclusion after completion of the or 12 weeks later Blood samples obtained measure BDNF The...
Multiple aspects of human psychophysiology, including mood and cognition, are subjected to diurnal rhythms. While the previous neuroimaging studies have focused solely on morningness-eveningness (ME) preference dichotomy, i.e. circadian phase, second key dimension rhythms, strength these preferences (amplitude; AM), has been completely overlooked. Uncovering neural correlates AM is especially important considering its link with negative emotionality. Structural T1-weighted data from 79 early...
The timing and dynamics of many diverse behaviors mammals, e.g., patterns animal foraging or human communication in social networks exhibit complex self-similar properties reproducible over multiple time scales. In this paper, we analyze spontaneous locomotor activity healthy individuals recorded two different conditions: during a week regular sleep chronic partial deprivation. After separating from rest with pre-defined threshold, have detected distinct statistical features duration times...
Exposure to airborne particulate matter (PM) may affect neurodevelopmental outcomes in children. The mechanisms underlying these relationships are not currently known. We aim assess whether PM affects the developing brains of schoolchildren Poland, a country characterized by high levels pollution. Children aged from 10 13 years (
The short-wavelength, i.e. blue light, is crucial for non-image forming effects such as entrainment of the circadian system in humans. Moreover, many studies showed that light enhances alertness and performance cognitive tasks. However, most scientific reports this topic are based on experiments using short exposure to or blue-enriched only a few focused its reduced transmittance, especially longer periods. latter could potentially give insight into understanding if age-related sleep...
Temporal and spatial characteristics of fixations are affected by image properties, including high-level scene characteristics, such as object-background composition, low-level physical clarity. The influence these factors is modulated the emotional content an image. Here, we aimed to establish whether brain correlates reflect modulatory effects. To this end, simultaneously scanned participants measured their eye movements, while presenting negative neutral images in various clarity...
There is a growing interest in human gamma-band oscillatory activity due to its direct link neuronal populations, associations with many cognitive processes, and positive relationship fMRI BOLD signal. Visual gamma has been successfully detected using concurrent EEG-fMRI recordings linked the visual cortex voxel-wise regression analysis. As oscillations reflect predominantly feedforward projections between brain regions, inclusion functional connectivity analysis highly recommended; however,...
Abstract When bilingual speakers switch back to speaking in their native language (L1) after having used second (L2), they often experience difficulty retrieving words L1. This phenomenon is referred as the L2 after-effect. We after-effect a lens explore neural bases of control mechanisms. Our goal was twofold: first, whether draws on domain-general or language-specific mechanisms; second, investigate precise mechanism(s) that drive precision fMRI approach based functional localizers measure...
Processing of emotional visual information engages cognitive functions and induces arousal. We aimed to examine the modulatory role valence on brain activations linked processing those Participants were scanned their pupil size was measured while viewing negative neutral images. The noise added images in various proportions parametrically manipulate amount information. Pupil used as an index physiological show that arousal induced by images, compared ones, is primarily related greater...
Humans can be classified as early, intermediate and late chronotypes based on their preferred sleep wakefulness patterns. Eveningness is associated with increased risk of developing several psychiatric conditions, such major depressive addictive disorders, however, the anatomical basis chronotype distinctions, which might predispose to above remains largely unexplored. Using magnetic resonance imaging data from 113 healthy young adults (71 females), we aimed correlate individual scores...