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. 2013 Oct 21;8(10):e76467. doi: 10.1371/journal.pone.0076467

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© 2013 Jahfari 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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A) In both experiments Go RT (left panel) and choice errors (middle panel) increased when spatial frequency information was removed. Again, response inhibition was more efficient when categorization became more difficult (right panel). Prior knowledge about frequency type improved only response initiation (Go RT). B) Parameter estimates obtained from HDDM showed a decrease in “drift rate” () (left panel) and decision “boundaries” () (right panel) with the removal of spatial frequency information.

Inline graphic — A) In both experiments Go RT (left panel) and choice errors (middle panel) increased when spatial frequency information was removed. Again, response inhibition was more efficient when categorization became more difficult (right panel). Prior knowledge about frequency type improved only response initiation (Go RT). B) Parameter estimates obtained from HDDM showed a decrease in “drift rate” () (left panel) and decision “boundaries” () (right panel) with the removal of spatial frequency information.