Attention, short-term memory, and action selection: a unifying theory. Export

@article{citeulike:1074616, abstract = {Cognitive behaviour requires complex context-dependent processing of information that emerges from the links between attentional perceptual processes, working memory and reward-based evaluation of the performed actions. We describe a computational neuroscience theoretical framework which shows how an attentional state held in a short term memory in the prefrontal cortex can by top-down processing influence ventral and dorsal stream cortical areas using biased competition to account for many aspects of visual attention. We also show how within the prefrontal cortex an attentional bias can influence the mapping of sensory inputs to motor outputs, and thus play an important role in decision making. We also show how the absence of expected rewards can switch an attentional bias signal, and thus rapidly and flexibly alter cognitive performance. This theoretical framework incorporates spiking and synaptic dynamics which enable single neuron responses, fMRI activations, psychophysical results, the effects of pharmacological agents, and the effects of damage to parts of the system to be explicitly simulated and predicted. This computational neuroscience framework provides an approach for integrating different levels of investigation of brain function, and for understanding the relations between them. The models also directly address how bottom-up and top-down processes interact in visual cognition, and show how some apparently serial processes reflect the operation of interacting parallel distributed systems.}, address = {Instituci\'{o} Catalana de Recerca i Estudis Avan\c{c}ats (ICREA), Universitat Pompeu Fabra, Department of Technology, Computational Neuroscience, Passeig de Circumval.laci\'{o}, 8, 08003 Barcelona, Spain.}, author = {Deco, Gustavo and Rolls, Edmund T.}, citeulike-article-id = {1074616}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.pneurobio.2005.08.004}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/16257103}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=16257103}, citeulike-linkout-3 = {http://www.sciencedirect.com/science/article/B6T0R-4HDX8RP-1/2/1daeb1b6510e6c259c59e726b7649500}, doi = {10.1016/j.pneurobio.2005.08.004}, issn = {0301-0082}, journal = {Progress in neurobiology}, keywords = {action, attention, memory, working}, month = {July}, number = {4}, pages = {236--256}, posted-at = {2008-08-29 19:33:28}, priority = {0}, title = {Attention, short-term memory, and action selection: a unifying theory.}, url = {http://dx.doi.org/10.1016/j.pneurobio.2005.08.004}, volume = {76}, year = {2005} }

TY - JOUR ID - citeulike:1074616 L3 - citeulike-article-id:1074616 N2 - Cognitive behaviour requires complex context-dependent processing of information that emerges from the links between attentional perceptual processes, working memory and reward-based evaluation of the performed actions. We describe a computational neuroscience theoretical framework which shows how an attentional state held in a short term memory in the prefrontal cortex can by top-down processing influence ventral and dorsal stream cortical areas using biased competition to account for many aspects of visual attention. We also show how within the prefrontal cortex an attentional bias can influence the mapping of sensory inputs to motor outputs, and thus play an important role in decision making. We also show how the absence of expected rewards can switch an attentional bias signal, and thus rapidly and flexibly alter cognitive performance. This theoretical framework incorporates spiking and synaptic dynamics which enable single neuron responses, fMRI activations, psychophysical results, the effects of pharmacological agents, and the effects of damage to parts of the system to be explicitly simulated and predicted. This computational neuroscience framework provides an approach for integrating different levels of investigation of brain function, and for understanding the relations between them. The models also directly address how bottom-up and top-down processes interact in visual cognition, and show how some apparently serial processes reflect the operation of interacting parallel distributed systems. IS - 4 JF - Progress in neurobiology SN - 0301-0082 AD - Institució Catalana de Recerca i Estudis Avançats (ICREA), Universitat Pompeu Fabra, Department of Technology, Computational Neuroscience, Passeig de Circumval.lació, 8, 08003 Barcelona, Spain. EP - 256 TI - Attention, short-term memory, and action selection: a unifying theory. VL - 76 SP - 236 KW - action KW - attention KW - memory KW - working AU - Deco, Gustavo AU - Rolls, Edmund PY - 2005/07// UR - http://dx.doi.org/10.1016/j.pneurobio.2005.08.004 ER -