Figure - available via license: Creative Commons Attribution 4.0 International
Content may be subject to copyright.
Source publication
In this paper, we provide a computational account of changes in synaptic connectivity within two regions of the fronto-parietal network, the dorsolateral prefrontal cortex and the pre-supplementary motor area, applying Dynamic Causal Models to electrocorticogram recordings from two macaque monkeys performing a problem-solving task that engages work...
Contexts in source publication
Context 1
... all electrodes and monkeys we performed eight tests and adjusted the significance level accordingly (Bonferroni corrected alpha = 0.0063). Because we found a violation of normality for at least one electrode (see Table 1), we used the Wilcoxon signed rank test to assess the increase in beta power between task demands and time on task. We further asked whether beta band power increased in search versus repeat trials and in the second versus the first half of the experimental session before the first pause. ...Context 2
... further asked whether beta band power increased in search versus repeat trials and in the second versus the first half of the experimental session before the first pause. The positive test statistics throughout all electrode sites, monkeys and experimental variables-as displayed in Table 1-indicate an increase with task demands and time on task. This time-related increase in beta power was significant for all electrodes and monkeys. ...Similar publications
The primary motor cortex (M1) is known to be spatially organized in terms of muscles and body parts, notwithstanding some overlap. However, the classical view is largely static, neglecting potential representational changes on a fast time scale. To address potential representational dynamics, we probed the mutual information between M1 signals reco...
