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. 2012 Aug 29;7(8):e42719. doi: 10.1371/journal.pone.0042719

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© 2012 Dempere-Marco et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Results obtained from the network model with the parameters shown in Table 1. The stimulation period during which the external stimulation is administered to the network to emulate the presence of 4 items in the visual display is = 500 ms and is depicted by a black segment. A 4 pools (pool 1, pool 3, pool 5 and pool 7) receive an external stimulation = 60 Hz and B the pool selective to the salient item (pool 1) receives an external stimulation = 100 Hz while the remaining three stimulated pools (pool 3, pool 5 and pool 7) receive only = 60 Hz. As a consequence of the biased competition in the visual saliency condition, the pool selective to the salient item quickly reaches a state of high firing rate during the stimulation period while preventing others from accessing such a state. This leads to fewer items being appropriately encoded into the visual WM system and, thus, would reduce performance in those trials in which the test item is different from the salient one.

Inline graphic — Results obtained from the network model with the parameters shown in Table 1. The stimulation period during which the external stimulation is administered to the network to emulate the presence of 4 items in the visual display is = 500 ms and is depicted by a black segment. A 4 pools (pool 1, pool 3, pool 5 and pool 7) receive an external stimulation = 60 Hz and B the pool selective to the salient item (pool 1) receives an external stimulation = 100 Hz while the remaining three stimulated pools (pool 3, pool 5 and pool 7) receive only = 60 Hz. As a consequence of the biased competition in the visual saliency condition, the pool selective to the salient item quickly reaches a state of high firing rate during the stimulation period while preventing others from accessing such a state. This leads to fewer items being appropriately encoded into the visual WM system and, thus, would reduce performance in those trials in which the test item is different from the salient one.