@misc{10481/74811,
year = {2022},
month = {1},
url = {http://hdl.handle.net/10481/74811},
abstract = {Verbal instructions allow fast and optimal implementation of novel behaviors. Previous
research has shown that different control-related variables structure neural activity in
frontoparietal regions during the encoding of novel instructed tasks. However, it is uncertain
whether different task goals modulate the organizing effect of these variables. In
this study, we investigated whether the neural encoding of three task-relevant variables
(dimension integration, response set complexity and target category) is modulated by
implementation and memorization demands. To do so, we combined functional Magnetic
Resonance Imaging (fMRI), an instruction-following paradigm and multivariate analyses.
We addressed how and where distributed activity patterns encoded the instructions' variables
and the impact of the implementation and memorization demands on the fidelity of
these representations. We further explored the nature of the neural code underpinning this
process. Our results reveal, first, that the content of to-be-implemented and to-bememorized
instructions is represented in overlapping brain regions, flexibly using a
common neural code across tasks. Importantly, they also suggest that preparing to
implement the instructions increases the decodability of task-relevant information in
frontoparietal areas, in comparison with memorization demands. Overall, our work emphasizes
both similarities and differences in task coding under the two contextual demands.
These findings qualify the previous understanding of novel instruction processing,
suggesting that representing task attributes in a generalizable code, together with the increase
in encoding fidelity induced by the implementation goals, could be key mechanisms
for proactive control in novel scenarios.},
organization = {Spanish Government	PID2019-111187GB-I00	
IJC2019-040208-I},
organization = {European Commission	835767},
organization = {Spanish Government	FPU17/01627},
organization = {University of Granada},
publisher = {Elsevier},
keywords = {Cognitive control},
keywords = {Novel instructions},
keywords = {fMRI},
keywords = {Multivariate pattern analysis},
keywords = {Fronto-parietal network},
title = {The effect of task demands on the neural patterns generated by novel instruction encoding},
doi = {10.1016/j.cortex.2022.01.010},
author = {Sobrado, Alberto and Palenciano Castro, Ana Francisca and González García, Carlos and Ruz Cámara, María},
}