Results 51 to 60 of about 1,236,617 (269)

A MEG Study of Visual Repetition Priming in Schizophrenia: Evidence for Impaired High-Frequency Oscillations and Event-Related Fields in Thalamo-Occipital Cortices

Frontiers in Psychiatry, 2020
Background: Cognitive dysfunctions represent a core feature of schizophrenia and a predictor for clinical outcomes. One possible mechanism for cognitive impairments could involve an impairment in the experience-dependent modifications of cortical ...
Andreas Sauer, Andreas Sauer, Tineke Grent-'t-Jong, Tineke Grent-'t-Jong, Michael Wibral, Michael Grube, Wolf Singer, Wolf Singer, Wolf Singer, Peter J. Uhlhaas, Peter J. Uhlhaas   +10 more
doaj   +1 more source

Behavioural and neural markers of tactile sensory processing in infants at elevated likelihood of autism spectrum disorder and/or attention deficit hyperactivity disorder

Journal of Neurodevelopmental Disorders, 2021
Backgrounds Atypicalities in tactile processing are reported in autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) but it remains unknown if they precede and associate with the traits of these disorders emerging in ...
Elena Serena Piccardi, Jannath Begum Ali, Emily J. H. Jones, Luke Mason, Tony Charman, Mark H. Johnson, Teodora Gliga, BASIS/STAARS Team   +7 more
doaj   +1 more source

Stimulus-specific plasticity in human visual gamma-band activity and functional connectivity

eLife, 2021
Under natural conditions, the visual system often sees a given input repeatedly. This provides an opportunity to optimize processing of the repeated stimuli. Stimulus repetition has been shown to strongly modulate neuronal-gamma band synchronization, yet
Benjamin J Stauch, Alina Peter, Heike Schuler, Pascal Fries   +3 more
doaj   +1 more source

Neural repetition suppression reflects fulfilled perceptual expectations [PDF]

Nature Neuroscience, 2008
Stimulus-evoked neural activity is attenuated on stimulus repetition (repetition suppression), a phenomenon that is attributed to largely automatic processes in sensory neurons. By manipulating the likelihood of stimulus repetition, we found that repetition suppression in the human brain was reduced when stimulus repetitions were improbable (and thus ...
Christopher, Summerfield, Emily H, Trittschuh, Jim M, Monti, M Marsel, Mesulam, Tobias, Egner   +4 more
openaire   +2 more sources

Repetition priming and repetition suppression: Multiple mechanisms in need of testing [PDF]

Cognitive Neuroscience, 2012
In our Discussion Paper, we reviewed four theoretical proposals that have the potential to link the neural and behavioral phenomena of Repetition Suppression and Repetition Priming. We argued that among these proposals, the Synchrony and Bayesian Explaining Away models appear to be the most promising in addressing existing data, and we articulated a ...
Stephen J, Gotts, Carson C, Chow, Alex, Martin   +2 more
openaire   +2 more sources

Toward a Broadband Astro-comb: Effects of Nonlinear Spectral Broadening in Optical Fibers [PDF]

, 2010
We propose and analyze a new approach to generate a broadband astro-comb by spectral broadening of a narrowband astro-comb inside a highly nonlinear optical fiber.
Braje, Chang, Chih-Hao Li, David F. Phillips, Dudley, Franz X. Kärtner, Gaeta, Guoqing Chang, Hansryd, Hundertmark, Kirchner, Li, Murphy, Ronald L. Walsworth, Steinmetz, Steinmetz   +15 more
core   +2 more sources

Repetition Suppression versus Enhancement--It's Quantity That Matters [PDF]

Cerebral Cortex, 2012
Upon repetition, certain stimuli induce reduced neural responses (i.e., repetition suppression), whereas others evoke stronger signals (i.e., repetition enhancement). It has been hypothesized that stimulus properties (e.g., visibility) determine the direction of the repetition effect.
Müller, N., Strumpf, H., Scholz, M., Baier, B., Melloni, L.   +4 more
openaire   +4 more sources

On the relationship between persistent delay activity, repetition enhancement and priming

Frontiers in Psychology, 2015
Human efficiency in processing incoming stimuli (in terms of speed and/or accuracy) is typically enhanced by previous exposure to the same, or closely related stimuli - a phenomenon referred to as priming.
Elisa Maria Tartaglia, Elisa Maria Tartaglia, Gianluigi eMongillo, Nicolas eBrunel   +3 more
doaj   +1 more source

Priming, Response Learning, and Repetition Suppression

Neuropsychologia, 2008
Prior exposure to a stimulus can facilitate its subsequent identification and classification, a phenomenon called priming. This behavioural facilitation is usually accompanied by a reduction in neural response within specific cortical regions (repetition suppression, RS). Recent research has suggested that both behavioural priming and RS can be largely
Horner, A.J., Henson, R.N.
openaire   +2 more sources

Investigation of noise suppression, pulse intensity and chirp of an actively mode-locked semiconductor fiber ring laser [PDF]

, 2007
An actively mode-locked fiber ring laser that utilizes an EDFA and semiconductor optical amplifier (SOA) is presented. The SOA enhances noise suppression. Active mode-locking was demonstrated at repetition rates up to 20 GHz.
Agrawal, Aisling M. Clarke, Clarke, Colm O’Riordan, Duan, Duan, Harvey, Ivan Evans, Kim, Liam P. Barry, Lin, Michael J. Connelly, Nakazawa, Prince M. Anandarajah, Trebino, Wu, Xu, Xu   +17 more
core   +1 more source