A5030753438- Visual perception and processing mechanisms
- Neural dynamics and brain function
- Neural and Behavioral Psychology Studies
- Tactile and Sensory Interactions
- Multisensory perception and integration
- Rheumatoid Arthritis Research and Therapies
- Ophthalmology and Visual Impairment Studies
- Visual Attention and Saliency Detection
- Osteoarthritis Treatment and Mechanisms
- Neurobiology and Insect Physiology Research
- Liver physiology and pathology
- Systemic Sclerosis and Related Diseases
- Face Recognition and Perception
- Color perception and design
- Dupuytren's Contracture and Treatments
- 3D Printing in Biomedical Research
- Pancreatic function and diabetes
- Neuroscience and Neural Engineering
- Systemic Lupus Erythematosus Research
- EEG and Brain-Computer Interfaces
- Urticaria and Related Conditions
- Tissue Engineering and Regenerative Medicine
- Motor Control and Adaptation
- Musculoskeletal synovial abnormalities and treatments
- Transcranial Magnetic Stimulation Studies
University of Padua
2015-2024
Inspire
2021
March of Dimes
2013
University of Calabria
2004-2011
National Research Council
2004-2011
Institute on Membrane Technology
2004-2011
University of Oxford
2003-2005
Abstract Transcranial random noise stimulation (tRNS) is a recent neuromodulation protocol. The high-frequency band (hf-tRNS) has shown to be the most effective in enhancing neural excitability. frequency of hf-tRNS typically spans from 100 640 Hz. Here we asked whether both lower and higher half are needed for increasing Three ranges (100–400 Hz, 400–700 100–700 Hz) Sham conditions were delivered 10 minutes at an intensity 1.5 mA over primary motor cortex (M1). Single-pulse transcranial...
Presentation of supraliminal or subliminal visual stimuli that can (or cannot) be detected identified improve the probability same stimulus being over a subsequent period seconds, hours longer. The locus and nature this perceptual priming effect was examined, using suprathreshold stimuli, in subjects who received repetitive pulse transcranial magnetic stimulation posterior occipital cortex, extrastriate motion area V5/MT right parietal cortex during intertrial interval direction...
Colors are rarely uniform, yet little is known about how people represent color distributions. We introduce a new method for studying ensembles based on intertrial learning in visual search. Participants looked an oddly colored diamond among diamonds with colors taken from either uniform or Gaussian On test trials, the targets had various distances feature space mean of preceding distractor distribution. Targets trials therefore served as probes into probabilistic representations colors....
Priming for motion direction has been shown to depend upon the functional integrity of extrastriate area V5/MT. Its retinotopic organization and interactions recently found between adaptation misperceived localization may suggest, this area, a role priming spatial position in addition established direction. Disruption V5/MT with repetitive transcranial magnetic stimulation during intertrial interval had effect abolishing but no position. These effects cannot be explained terms perception or...
Amblyopia is a visual disorder due to an abnormal pattern of functional connectivity the cortex and characterized by several deficits spatial vision including impairments acuity (VA) contrast sensitivity function (CSF). Despite being developmental caused reduced stimulation during early life (critical period), studies have shown that extensive perceptual training can improve VA CSF in people with amblyopia even adulthood. With present study we assessed whether much shorter regime,...
Perceptual learning has been shown to produce an improvement of visual acuity (VA) and contrast sensitivity (CS) both in subjects with amblyopia refractive defects such as myopia or presbyopia. Transcranial random noise stimulation (tRNS) proven be efficacious accelerating neural plasticity boosting perceptual healthy participants. In this study, we investigated whether a short behavioral training regime using detection task combined online tRNS was effective improving functions participants...
We recently demonstrated that observers are capable of encoding not only summary statistics, such as mean and variance stimulus ensembles, but also the shape ensembles. Here, for first time, we show learning dynamics this process, investigate possible priors distribution shape, demonstrate able to learn more complex distributions, bimodal ones. used speeding slowing response times between trials (intertrial priming) in visual search an oddly oriented line assess internal models distractor...
Abstract The impact of action video games on reading performance has been already demonstrated in individuals with and without neurodevelopmental disorders. combination posterior parietal cortex neuromodulation by a transcranial random noise stimulation could enhance brain plasticity, improving attentional control skills also adults developmental dyslexia. In double blind randomized controlled trial, 20 young adult nonaction game players dyslexia were trained for 15 h games. Half the...
Previous evidence has shown that high frequency transcranial random noise stimulation (hf-tRNS) decreases motion coherence thresholds when a cephalic montage (i.e., return over Cz) is used. Extracephalic montages have also been employed to modulate behavioral performance, eliminating of regions under the electrode. In this study, we examined effects different electrical (tES) protocols on visual discrimination, placing electrode ipsilateral arm. We assessed impact localization using hf-tRNS,...
Abstract Collinear modulation represents a fundamental building block of our perceptual world, and its study has enhanced understanding contrast sensitivity, spatial integration, neural plasticity in the visual system. In this phenomenon, visibility target is influenced by collinear elements. Four key factors modulate effect: distance between flankers, retinal eccentricity, frequency. Each these elements affects modulation, increasing or reducing target’s visibility. Short target-to-flankers...
We investigated whether lateral masking in the near-periphery, due to inhibitory interactions at an early level of central visual processing, could be weakened by perceptual learning and transferred untrained, higher-level known as crowding. The trained task was contrast detection a Gabor target presented near periphery (4°) presence co-oriented co-aligned high flankers, which featured different target-to-flankers separations along vertical axis that varied from 2λ 8λ. found both suppressive...
The predominant view of motion and form processing in the human visual system assumes that these two attributes are handled by separate independent modules. Motion involves filtering direction-selective sensors, followed integration to solve aperture problem. Form orientation-selective size-selective receptive fields, encode object shape. It has long been known signals can influence well-known Gestalt principle common fate; texture elements which share a property grouped into single contour...
The brain can retain speed information in early visual short-term memory an astonishingly precise manner. We investigated whether this (early) system is active during the extrapolation of occluded motion and it reflects misperception due to contrast size. Experiments 1A 2A showed that reducing target or increasing its size led illusory underestimation. 1B, 2B, 3 phenomenon reflected motion, independent range visible speeds, length trajectory invisible trajectory, type task. These results...