Results 61 to 70 of about 1,236,617 (269)

Human scalp electroencephalography reveals that repetition suppression varies with expectation

open access: yesFrontiers in Human Neuroscience, 2011
Repetitions of a sensory event elicit lower levels of brain activity than its initial presentation (‘repetition suppression’). According to one view, repetition suppression depends on the biophysics of neuronal discharge, and is thus an automatic ...
Christopher eSummerfield   +3 more
doaj   +1 more source

Hemispheric Asymmetries in Repetition Enhancement and Suppression Effects in the Newborn Brain. [PDF]

open access: yesPLoS ONE, 2015
The repeated presentation of stimuli typically attenuates neural responses (repetition suppression) or, less commonly, increases them (repetition enhancement) when stimuli are highly complex, degraded or presented under noisy conditions.
Camillia Bouchon   +2 more
doaj   +1 more source

Motivational salience modulates hippocampal repetition suppression and functional connectivity in humans

open access: yesFrontiers in Human Neuroscience, 2011
Repetition suppression (RS) is a rapid decrease of stimulus-related neuronal responses upon repeated presentation of a stimulus. Previous studies have demonstrated that negative emotional salience of stimuli enhances RS.
Sarah eZweynert   +14 more
doaj   +1 more source

Corticofugal regulation of predictive coding

open access: yeseLife, 2022
Sensory systems must account for both contextual factors and prior experience to adaptively engage with the dynamic external environment. In the central auditory system, neurons modulate their responses to sounds based on statistical context.
Alexandria MH Lesicko   +4 more
doaj   +1 more source

A habituation account of change detection in same/different judgments [PDF]

open access: yes, 2011
We investigated the basis of change detection in a short-term priming task. In two experiments, participants were asked to indicate whether or not a target word was the same as a previously presented cue.
AJ Horner   +73 more
core   +1 more source

Context-dependent minimisation of prediction errors involves temporal-frontal activation

open access: yesNeuroImage, 2020
According to the predictive coding model of perception, the brain constantly generates predictions of the upcoming sensory inputs. Perception is realised through a hierarchical generative model which aims at minimising the discrepancy between predictions
Yi-Fang Hsu   +3 more
doaj   +1 more source

Congruency sequence effects and previous response times: conflict adaptation or temporal learning? [PDF]

open access: yes, 2016
In the present study, we followed up on a recent report of two experiments in which the congruency sequence effect-the reduction of the congruency effect after incongruent relative to congruent trials in Stroop-like tasks-was observed without feature ...
Schmidt, James, Weissman, D.H.
core   +1 more source

Repetition suppression and plasticity in the human brain [PDF]

open access: yesNeuroImage, 2009
The suppression of neuronal responses to a repeated event is a ubiquitous phenomenon in neuroscience. However, the underlying mechanisms remain largely unexplored. The aim of this study was to examine the temporal evolution of experience-dependent changes in connectivity induced by repeated stimuli.
Garrido, Marta I.   +5 more
openaire   +5 more sources

Femtosecond laser ablation-ICP-mass spectrometry analysis of a heavy metallic matrix : determination of platinum group metals and gold in lead fire-assay buttons as a case study [PDF]

open access: yes, 2010
Owing to the shorter time interval during which energy is delivered to the sample material, femtosecond (fs) laser ablation is preferable over nanosecond laser ablation for metallic samples. In this project, the influence of various laser parameters-beam
Günther, Detlev   +4 more
core   +1 more source

Temporal tuning of repetition suppression across the visual cortex

open access: yesbioRxiv, 2019
The visual system adapts to its recent history. A phenomenon related to this is repetition suppression (RS) - a reduction in neural responses to repeated compared to non-repeated visual input.
M. Fritsche   +2 more
semanticscholar   +1 more source

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