Serial, covert shifts of attention during visual search are reflected by the frontal eye fields and correlated with population oscillations. Export

@article{citeulike:5435243, abstract = {Attention regulates the flood of sensory information into a manageable stream, and so understanding how attention is controlled is central to understanding cognition. Competing theories suggest visual search involves serial and/or parallel allocation of attention, but there is little direct, neural evidence for either mechanism. Two monkeys were trained to covertly search an array for a target stimulus under visual search (endogenous) and pop-out (exogenous) conditions. Here, we present neural evidence in the frontal eye fields (FEF) for serial, covert shifts of attention during search but not pop-out. Furthermore, attention shifts reflected in FEF spiking activity were correlated with 18-34 Hz oscillations in the local field potential, suggesting a "clocking" signal. This provides direct neural evidence that primates can spontaneously adopt a serial search strategy and that these serial covert shifts of attention are directed by the FEF. It also suggests that neuron population oscillations may regulate the timing of cognitive processing.}, author = {Buschman, Timothy J. and Miller, Earl K.}, citeulike-article-id = {5435243}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.neuron.2009.06.020}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0896627309004905}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/19679077}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=19679077}, day = {13}, doi = {10.1016/j.neuron.2009.06.020}, issn = {1097-4199}, journal = {Neuron}, keywords = {attention, lfp, vision}, month = {August}, number = {3}, pages = {386--396}, posted-at = {2009-08-20 07:20:05}, priority = {2}, title = {Serial, covert shifts of attention during visual search are reflected by the frontal eye fields and correlated with population oscillations.}, url = {http://dx.doi.org/10.1016/j.neuron.2009.06.020}, volume = {63}, year = {2009} }

TY - JOUR ID - citeulike:5435243 L3 - citeulike-article-id:5435243 N2 - Attention regulates the flood of sensory information into a manageable stream, and so understanding how attention is controlled is central to understanding cognition. Competing theories suggest visual search involves serial and/or parallel allocation of attention, but there is little direct, neural evidence for either mechanism. Two monkeys were trained to covertly search an array for a target stimulus under visual search (endogenous) and pop-out (exogenous) conditions. Here, we present neural evidence in the frontal eye fields (FEF) for serial, covert shifts of attention during search but not pop-out. Furthermore, attention shifts reflected in FEF spiking activity were correlated with 18-34 Hz oscillations in the local field potential, suggesting a "clocking" signal. This provides direct neural evidence that primates can spontaneously adopt a serial search strategy and that these serial covert shifts of attention are directed by the FEF. It also suggests that neuron population oscillations may regulate the timing of cognitive processing. IS - 3 JF - Neuron SN - 1097-4199 EP - 396 TI - Serial, covert shifts of attention during visual search are reflected by the frontal eye fields and correlated with population oscillations. VL - 63 SP - 386 KW - attention KW - lfp KW - vision AU - Buschman, Timothy AU - Miller, Earl PY - 2009/08/13/ UR - http://dx.doi.org/10.1016/j.neuron.2009.06.020 ER -