@article{Woolgar:2011:10.1523/JNEUROSCI.2616-11.2011,
author = {Woolgar, A and Hampshire, A and Thompson, R and Duncan, J},
doi = {10.1523/JNEUROSCI.2616-11.2011},
journal = {J Neurosci},
pages = {14592--14599},
title = {Adaptive coding of task-relevant information in human frontoparietal cortex},
url = {http://dx.doi.org/10.1523/JNEUROSCI.2616-11.2011},
volume = {31},
year = {2011}
}

Download

TY  - JOUR
AB  - Frontoparietal cortex is thought to be essential for flexible behavior, but the mechanism for control remains elusive. Here, we demonstrate a potentially critical property of this cortex: its dynamic configuration for coding of task-critical information. Using multivoxel pattern analysis of human functional imaging data, we demonstrate an adaptive change in the patterns of activation coding task-relevant stimulus distinctions. When task demands made perceptual information more difficult to discriminate, frontoparietal regions showed increased coding of this information. Visual cortices showed the opposite result: a weaker representation of perceptual information in line with the physical change in the stimulus. On a longer timescale, a rebalancing of coding was also seen after practice, with a diminished representation of task rules as they became familiar. The results suggest a flexible neural system, exerting cognitive control in a wide range of tasks by adaptively representing the task features most challenging for successful goal-directed behavior.
AU  - Woolgar,A
AU  - Hampshire,A
AU  - Thompson,R
AU  - Duncan,J
DO  - 10.1523/JNEUROSCI.2616-11.2011
EP  - 14599
PY  - 2011///
SN  - 1529-2401
SP  - 14592
TI  - Adaptive coding of task-relevant information in human frontoparietal cortex
T2  - J Neurosci
UR  - http://dx.doi.org/10.1523/JNEUROSCI.2616-11.2011
UR  - http://www.ncbi.nlm.nih.gov/pubmed/21994375
VL  - 31
ER  - 

Download