@article{ref1,
title="Coherent delta-band oscillations between cortical areas correlate with decision making",
journal="Proceedings of the National Academy of Sciences of the United States of America",
year="2013",
author="Nácher, Verónica and Ledberg, Anders and Deco, Gustavo and Romo, Ranulfo",
volume="110",
number="37",
pages="15085-15090",
abstract="Coherent oscillations in the theta-to-gamma frequency range have been proposed as a mechanism that coordinates neural activity in large-scale cortical networks in sensory, motor, and cognitive tasks. Whether this mechanism also involves coherent oscillations at delta frequencies (1-4 Hz) is not known. Rather, delta oscillations have been associated with slow-wave sleep. Here, we show coherent oscillations in the delta frequency band between parietal and frontal cortices during the decision-making component of a somatosensory discrimination task. Importantly, the magnitude of this delta-band coherence is modulated by the different decision alternatives. Furthermore, during control conditions not requiring decision making, delta-band coherences are typically much reduced. Our work indicates an important role for synchronous activity in the delta frequency band when large-scale, distant cortical networks coordinate their neural activity during decision making.<p /> <p>Language: en</p>",
language="en",
issn="0027-8424",
doi="10.1073/pnas.1314681110",
url="http://dx.doi.org/10.1073/pnas.1314681110"
}