User profiles for J. F. Mejias

John F. Mejia

- Verified email at dri.edu - Cited by 1667

Jorge F. Mejias

- Verified email at uva.nl - Cited by 1318

Feedforward and feedback frequency-dependent interactions in a large-scale laminar network of the primate cortex

JF Mejias, JD Murray, H Kennedy, XJ Wang - Science advances, 2016 - science.org
Interactions between top-down and bottom-up processes in the cerebral cortex hold the key
to understanding attentional processes, predictive coding, executive control, and a gamut of …

Methodology for assessing exposure and impacts of air pollutants in school children: data collection, analysis and health effects–a literature review

JF Mejía, SL Choy, K Mengersen, L Morawska - Atmospheric environment, 2011 - Elsevier
The aim of this review is to explore the methodologies employed to assess the exposure of
children to air pollutants, in particular traffic emissions, at school, and how these …

[PDF][PDF] Engagement of pulvino-cortical feedforward and feedback pathways in cognitive computations

J Jaramillo, JF Mejias, XJ Wang - Neuron, 2019 - cell.com
Computational modeling of brain mechanisms of cognition has largely focused on the cortex,
but recent experiments have shown that higher-order nuclei of the thalamus participate in …

[PDF][PDF] Inter-areal balanced amplification enhances signal propagation in a large-scale circuit model of the primate cortex

MR Joglekar, JF Mejias, GR Yang, XJ Wang - Neuron, 2018 - cell.com
Understanding reliable signal transmission represents a notable challenge for cortical systems,
which display a wide range of weights of feedforward and feedback connections among …

Optimal heterogeneity for coding in spiking neural networks

JF Mejias, A Longtin - Physical Review Letters, 2012 - APS
The effect of cellular heterogeneity on the coding properties of neural populations is studied
analytically and numerically. We find that heterogeneity decreases the threshold for …

[PDF][PDF] The continued need for animals to advance brain research

…, A Luthi, L Ma, AS Mallien, P Meerlo, JF Mejias… - Neuron, 2021 - cell.com
Policymakers aim to move toward animal-free alternatives for scientific research and have
introduced very strict regulations for animal research. We argue that, for neuroscience …

Mechanisms of distributed working memory in a large-scale network of macaque neocortex

JF Mejias, XJ Wang - Elife, 2022 - elifesciences.org
Neural activity underlying working memory is not a local phenomenon but distributed across
multiple brain regions. To elucidate the circuit mechanism of such distributed activity, we …

Linking long-term water balances and statistical scaling to estimate river flows along the drainage network of Colombia

…, A Cuartas, J Barco, RI Mantilla, JF Mejía… - Journal of Hydrologic …, 2007 - ascelibrary.org
Long-term average river discharges as well as peak and low flows of different return periods
are estimated along the entire river network of Colombia, through the conjoint use of the …

[HTML][HTML] Differential effects of excitatory and inhibitory heterogeneity on the gain and asynchronous state of sparse cortical networks

JF Mejias, A Longtin - Frontiers in computational neuroscience, 2014 - frontiersin.org
Recent experimental and theoretical studies have highlighted the importance of cell-to-cell
differences in the dynamics and functions of neural networks, such as in different types of …

Paradoxical response reversal of top-down modulation in cortical circuits with three interneuron types

LC Garcia del Molino, GR Yang, JF Mejias, XJ Wang - Elife, 2017 - elifesciences.org
Pyramidal cells and interneurons expressing parvalbumin (PV), somatostatin (SST), and
vasoactive intestinal peptide (VIP) show cell-type-specific connectivity patterns leading to a …