[Politico] With some 150 major new dams planned in the Amazon, researchers say that 60 percent would cause the first major break in connectivity between Andean headwaters and the lowland Amazon.
The dynamics of these habitats culminate in variation in connectivity between sites, which has multiple consequences for populations, communities, and ecosystems.
Psychophysiological interaction analysis was performed to analyze task-associated changes in connectivity between a ventral parietal cortex (VPC) seed and the inferior frontal gyrus (IFG), key components of the human VAN.
Finally, we use these models to explore the possibility that functional synaptic disconnection can lead to an increase in connectivity between the representations of concepts that could explain some of the alterations in discourse displayed by patients with schizophrenia.
Our findings indicate that probabilistic reasoning may depend on the balance between the task-positive and task-negative network, and that shifts in connectivity between the two may be crucial for evidence gathering.
The PFC indicator predicted a decrease in intra and inter-patch connectivity following habitat loss and fragmentation (negative change 1), whereas patch-based connectivity measures indicate an increase in connectivity between fragmented patches.
The group analysis revealed only very subtle differences in connectivity between both resting-state sessions.
Then we compared habitats within lakes using a General Linear Model (GLM) with ecotype, lake as categorical predictors and their interaction, to estimate differences in connectivity between habitats.
We additionally anticipated a reduction in connectivity between cognitive control regions and ventral visual cortex in the sleep-deprived as compared to the well-rested state.
For selective attention tasks, reductions in connectivity between cognitive control regions and relevant visual areas appear to be a consistent feature of neural activity following SD.
These differences in connectivity between awake and moderately sedated levels are based on predicted plasma propofol concentrations, calculated using a standard pharmacokinetic model for propofol [32], [33].
