1) J Cogn Neurosci: 3 structural mechanisms that had been hypothesized to underlie vsWM development during childhood were evaluated by simulating the model and comparing results to fMRI. It was concluded that inter-regional synaptic connection strength cause vsWM development. 2) J Integr Neurosci: Given the importance of fronto-parietal connections, we tested whether connection asymmetry affected resistance to distraction. We drew the conclusion that stronger frontal connections are beneficial. By comparing model results to EEG, we concluded that the brain indeed has stronger frontal-to-parietal connections than vice versa.
Model Type: Realistic Network
Region(s) or Organism(s): Neocortex
Cell Type(s): Neocortex U1 L2/6 pyramidal intratelencephalic GLU cell; Abstract Wang-Buzsaki neuron
Model Concept(s): Working memory; Attractor Neural Network
Simulation Environment: NEURON
References:
Edin F, Macoveanu J, Olesen P, Tegnér J, Klingberg T. (2007). Stronger synaptic connectivity as a mechanism behind development of working memory-related brain activity during childhood. Journal of cognitive neuroscience. 19 [PubMed]
Edin F, Klingberg T, Stödberg T, Tegnér J. (2007). Fronto-parietal connection asymmetry regulates working memory distractibility. Journal of integrative neuroscience. 6 [PubMed]