"... We describe a connectionist model of human attentional networks to explore the possible interplays among the networks from a computational perspective. This model is developed in the framework of leabra (local, error-driven, and associative, biologically realistic algorithm) and simultaneously involves these attentional networks connected in a biologically inspired way. ... We evaluate the model by simulating the empirical data collected on normal human subjects using the Attentional Network Test (ANT). The simulation results fit the experimental data well. In addition, we show that the same model, with a single parameter change that affects executive control, is able to simulate the empirical data collected from patients with schizophrenia. This model represents a plausible connectionist explanation for the functional structure and interaction of human attentional networks."
Model Type: Realistic Network; Connectionist Network
Model Concept(s): Activity Patterns; Winner-take-all; Action Selection/Decision Making; Schizophrenia
Simulation Environment: Emergent/PDP++
References:
Wang H, Fan J. (2007). Human attentional networks: a connectionist model. Journal of cognitive neuroscience. 19 [PubMed]