Within the framework of our bilinear DCM, this is modeled as a decrease in top-down effective connectivity for visual stimuli that match the current prediction.
fMRI network studies in active alcoholics suggest that impulsive and compulsive behaviors are related to the ineffectiveness of brain networks, characterized by decreased synchrony in top-down executive control network and increased synchrony in the bottom-up appetitive drive network.
Females, but not males showed decreased metabolic activity in brain regions implicated in top-down control network when exposed to cocaine-cues.
Bats and birds play important roles as arthropod predators in top-down control.
We use DNSSEC-Debugger to perform the top-down validation approach used in our first measurement scenario in "Top-down measurement scenario" and "Results and evaluation: top-down approach".
The change in top-down connectivity during RS across different image sizes is consistent with models of predictive coding, in which RS is thought to reflect a decrease in prediction error between bottom-up (stimulus-related) and top-down (prediction-related) inputs (Henson 2003; Friston 2005).
As a result, a key step in top-down spectral interpretation is to deconvolute a complex top-down mass spectrum to a list of monoisotopic masses.
As a result, spectral deconvolution, which converts a complex top-down mass spectrum into a monoisotopic mass list, is a key step in top-down spectral interpretation.
The manually optimized parameters correspond to the examples in Figure 4, in top-down order.
The demonstration that activation in the reading network increases during learning and decreases with familiarity can be explained by both bottom up and top down processing within the network.
In New England salt marshes, my experimental studies have shown that top-down forces decrease in importance (due to turnover of grazer species) and that coastal eutrophication (an exaggerated bottom-up effect), precipitated by local shoreline development, is driving major shifts in salt marsh plant assemblages.
