Author
Luiz Pessoa
University of Maryland, College ParkORCID 0000-0003-4696-6903Unclaimed ORCID profile · follow to get notified of new preprints
Biology Disciplines
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2017-2026 · peak 4/yrCo-Author Collaboration Network
10 top collaborators · 14 mutual co-author links20 papers
Recent·Most cited
- NeurosciencebioRxivPreprint
Bayesian generative modeling reveals a multi-modal hierarchical architecture in the mouse functional connectome
Srinivas Govinda Surampudi, Francesca Mandino, Evelyn M. R. Lake, Luiz Pessoa
The paper uses Bayesian generative modeling to show the mouse brain's functional connectome has multiple co-dominant organizational configurations rather than a single structure.
- NeurosciencebioRxivPreprint
Disentangling value, arousal and valence systems in approach-avoidance behaviors in humans using functional magnetic resonance imaging
Dinavahi V. P. S. Murty, Luiz Pessoa
The paper investigates how value processing differs from arousal and valence in human approach-avoidance behaviors using fMRI and identifies independent neural correlates of value.
- NeuroscienceNature CommunicationsPeer-reviewed
Multimodal measures of spontaneous brain activity reveals both common and divergent patterns of cortical functional organization
Hadi Vafaii, Francesca Mandino, Gabriel Desrosiers-Grégoire…·Luiz Pessoa
The paper uses Ca2+ imaging and fMRI-BOLD in mice to compare functional network organization, finding overlapping but distinct patterns between modalities.
41 citationstop 1% - NeuroscienceJournal of NeurosciencePeer-reviewed
Threat and reward imminence processing in the human brain
Dinavahi V. P. S. Murty, Songtao Song, Srinivas Govinda Surampudi, Luiz Pessoa
This study investigates the dynamics of aversive and appetitive processing in the human brain during threat-avoidance and reward-seeking tasks, revealing temporally increasing responses in multiple brain regions.
29 citationstop 5% - NeuroscienceAperture NeuroPeer-reviewed
Sources of information waste in neuroimaging:mishandling structures, thinking dichotomously, and over-reducing data
Gang Chen, Paul A. Taylor, Joel Stoddard…·Luiz Pessoa
The paper identifies information loss sources in neuroimaging and proposes a Bayesian framework to improve inference and reproducibility.
28 citations - NeuroscienceJournal of Cognitive NeurosciencePeer-reviewed
Distributed and multifaceted effects of threat and safety
Kelly Morrow, Dinavahi V. P. S. Murty, Jongwan Kim…·Luiz Pessoa
This study examines how sustained threat is processed in the human brain using fMRI, finding widespread neural effects beyond traditional emotion-related regions.
- NeurosciencePLoS Computational BiologyPeer-reviewed
Learning brain dynamics for decoding and predicting individual differences
Luiz Pessoa, Chirag Limbachia, Joyneel Misra…·Joseph Jaja
This paper introduces a recurrent neural network-based framework to decode and predict individual differences in brain dynamics using fMRI data from movie-watching and experimental conditions.
- NeuroscienceCommunications BiologyPeer-reviewed
Controllability over stressor decreases responses in key threat-related brain areas
Chirag Limbachia, Kelly Morrow, Anastasiia Khibovska…·Luiz Pessoa
The paper investigates how controllability over stressors affects brain responses to a shock-plus-sound stressor, finding decreased responses in key threat-related regions with controllability.
- NeuroscienceNeuroImagePeer-reviewed
To pool or not to pool: Can we ignore cross-trial variability in FMRI?
Gang Chen, Srikanth Padmala, Yi Chen…·Luiz Pessoa
This paper introduces a Bayesian multilevel model framework to account for cross-trial variability in fMRI data, showing improved statistical sensitivity and accuracy compared to traditional methods.
35 citations - NeurosciencebioRxivPreprint
Capturing brain dynamics: latent spatiotemporal patterns predict stimuli and individual differences
Manasij Venkatesh, Joseph F. JáJá, Luiz Pessoa
The paper introduces an LSTM-based framework to analyze spatiotemporal brain dynamics from fMRI data, showing it can classify movie stimuli and predict individual traits.
1 citation - NeuroscienceNeuroImagePeer-reviewed
Interactions between emotion and action in the brain
Liana Catarina Lima Portugal, Rita de Cássia S. Alves, Orlando Fernandes…·Mirtes Garcia Pereira
This study investigates how emotion and action interact in the brain by examining context-dependent responses to threatening stimuli using fMRI and Bayesian analysis.
- NeuroscienceNeuroImagePeer-reviewed
Comparing Functional Connectivity Matrices: A Geometry-Aware Approach applied to Participant Identification
Manasij Venkatesh, Joseph F. JáJá, Luiz Pessoa
This paper introduces a geodesic distance metric to compare functional connectivity matrices, achieving high participant identification accuracy and outperforming traditional methods.
98 citationstop 2% - NeuroscienceNeuroImagePeer-reviewed
Fighting or Embracing Multiplicity in Neuroimaging? Neighborhood Leverage versus Global Calibration
Gang Chen, Paul A. Taylor, Robert W. Cox, Luiz Pessoa
The paper proposes a Bayesian multilevel approach to address multiple testing in neuroimaging by embracing multiplicity through global calibration, aiming to improve model efficiency and reproducibility.
22 citations - NeuroscienceJournal of NeurosciencePeer-reviewed
Representational organization of novel task sets during proactive encoding.
Ana F. Palenciano, Carlos González‐García, Juan Eloy Arco…·Marı́a Ruz
This study uses fMRI and representational similarity analysis to examine how brain regions organize novel task encoding based on control-related variables and reward expectations.
- NeuroscienceHuman Brain MappingPeer-reviewed
One Model to Rule Them All: An Integrative Approach to Matrix-Based Analyses in Neuroimaging Connectomics
Gang Chen, Paul‐Christian Bürkner, Paul A. Taylor…·Luiz Pessoa
The paper introduces a Bayesian multilevel modeling approach for neuroimaging connectomics that integrates region, region pairs, and subject analyses to improve statistical inference and avoid multiple testing issues.
27 citations - NeuroscienceJournal of Cognitive NeurosciencePeer-reviewed
Dynamic threat processing
Christian Meyer, Srikanth Padmala, Luiz Pessoa
This study investigates how proximity, direction, and speed interact to influence threat processing in the human brain using fMRI and skin conductance responses.
- NeuroscienceNeuroImagePeer-reviewed
Brain dynamics and temporal trajectories during task and naturalistic processing
Manasij Venkatesh, Joseph F. JáJá, Luiz Pessoa
The paper introduces reservoir computing for analyzing dynamic fMRI data, showing it can classify tasks and extract low-dimensional temporal trajectories with high accuracy.
- NeuroscienceFrontiers in Human NeurosciencePeer-reviewed
Intersubject brain network organization during dynamic anxious anticipation
Mahshid Najafi, Joshua Kinnison, Luiz Pessoa
This study investigates how large-scale brain networks reorganize during dynamic anxious anticipation using functional MRI and intersubject network analysis, finding changes in network cohesion and functional connections during approach and retreat phases.