Vasilis M Karlaftis
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View article: Neurogenetic phenotypes of learning-dependent plasticity for improved perceptual decisions
Neurogenetic phenotypes of learning-dependent plasticity for improved perceptual decisions Open
Genetics and experience are known to mold our cognitive development. Yet, the interactions between genetics and brain mechanisms that support learning and flexible behavior in the adult human brain remain largely unknown. Here, we test the…
View article: Microstructural and neurochemical plasticity mechanisms interact to enhance human perceptual decision-making
Microstructural and neurochemical plasticity mechanisms interact to enhance human perceptual decision-making Open
Experience and training are known to boost our skills and mold the brain’s organization and function. Yet, structural plasticity and functional neurotransmission are typically studied at different scales (large-scale networks, local circui…
View article: Neurochemical and functional interactions for improved perceptual decisions through training
Neurochemical and functional interactions for improved perceptual decisions through training Open
Combining multimodal brain imaging [magnetic resonance spectroscopy (MRS)-GABA, functional connectivity] with interventions [transcranial direct current stimulation (tDCS)], we demonstrate that glutamatergic excitation and functional inter…
View article: Brain stimulation boosts perceptual learning by altering sensory GABAergic plasticity and functional connectivity
Brain stimulation boosts perceptual learning by altering sensory GABAergic plasticity and functional connectivity Open
Interpreting cluttered scenes —a key skill for successfully interacting with our environment— relies on our ability to select relevant sensory signals while filtering out noise. Training is known to improve our ability to make these percep…
View article: A New Remote Guided Method for Supervised Web-Based Cognitive Testing to Ensure High-Quality Data: Development and Usability Study
A New Remote Guided Method for Supervised Web-Based Cognitive Testing to Ensure High-Quality Data: Development and Usability Study Open
Background The global COVID-19 pandemic has triggered a fundamental reexamination of how human psychological research can be conducted safely and robustly in a new era of digital working and physical distancing. Online web-based testing ha…
View article: Functional Interactions between Sensory and Memory Networks for Adaptive Behavior
Functional Interactions between Sensory and Memory Networks for Adaptive Behavior Open
The brain’s capacity to adapt to sensory inputs is key for processing sensory information efficiently and interacting in new environments. Following repeated exposure to the same sensory input, brain activity in sensory areas is known to d…
View article: A New Remote Guided Method for Supervised Web-Based Cognitive Testing to Ensure High Quality Data
A New Remote Guided Method for Supervised Web-Based Cognitive Testing to Ensure High Quality Data Open
Background. The global COVID-19 pandemic has triggered a fundamental reexamination of how human psychological research can be conducted both safely and robustly in a new era of digital working and physical distancing. Online web-based test…
View article: A New Remote Guided Method for Supervised Web-Based Cognitive Testing to Ensure High-Quality Data: Development and Usability Study (Preprint)
A New Remote Guided Method for Supervised Web-Based Cognitive Testing to Ensure High-Quality Data: Development and Usability Study (Preprint) Open
BACKGROUND The global COVID-19 pandemic has triggered a fundamental reexamination of how human psychological research can be conducted safely and robustly in a new era of digital working and physical distancing. Online web-based testing h…
View article: Fine-scale computations for adaptive processing in the human brain
Fine-scale computations for adaptive processing in the human brain Open
Adapting to the environment statistics by reducing brain responses to repetitive sensory information is key for efficient information processing. Yet, the fine-scale computations that support this adaptive processing in the human brain rem…
View article: White-Matter Pathways for Statistical Learning of Temporal Structures
White-Matter Pathways for Statistical Learning of Temporal Structures Open
Extracting the statistics of event streams in natural environments is critical for interpreting current events and predicting future ones. The brain is known to rapidly find structure and meaning in unfamiliar streams of sensory experience…
View article: How structure sculpts function: Unveiling the contribution of anatomical connectivity to the brain's spontaneous correlation structure
How structure sculpts function: Unveiling the contribution of anatomical connectivity to the brain's spontaneous correlation structure Open
Intrinsic brain activity is characterized by highly organized co-activations between different regions, forming clustered spatial patterns referred to as resting-state networks. The observed co-activation patterns are sustained by the intr…