User profiles for Ashkan Faghiri

Ashkan Faghiri

Post-doctoral Researcher, Translational Research in Neuroimaging and Data Science …
Verified email at gatech.edu
Cited by 385

Changing brain connectivity dynamics: from early childhood to adulthood

A Faghiri, JM Stephen, YP Wang… - Human brain …, 2018 - Wiley Online Library
Brain maturation through adolescence has been the topic of recent studies. Previous works
have evaluated changes in morphometry and also changes in functional connectivity. …

A unified approach for characterizing static/dynamic connectivity frequency profiles using filter banks

A Faghiri, A Iraji, E Damaraju, J Turner… - Network …, 2021 - direct.mit.edu
Static and dynamic functional network connectivity (FNC) are typically studied separately,
which makes us unable to see the full spectrum of connectivity in each analysis. Here, we …

Tools of the trade: estimating time-varying connectivity patterns from fMRI data

A Iraji, A Faghiri, N Lewis, Z Fu… - Social cognitive and …, 2021 - academic.oup.com
Given the dynamic nature of the brain, there has always been a motivation to move beyond ‘static’
functional connectivity, which characterizes functional interactions over an extended …

Frequency modulation increases the specificity of time-resolved connectivity: A resting-state fMRI study

A Faghiri, K Yang, A Faria, K Ishizuka, A Sawa… - Network …, 2024 - direct.mit.edu
Representing data using time-resolved networks is valuable for analyzing functional data of
the human brain. One commonly used method for constructing time-resolved networks from …

Multi-spatial-scale dynamic interactions between functional sources reveal sex-specific changes in schizophrenia

A Iraji, A Faghiri, Z Fu, S Rachakonda… - Network …, 2022 - direct.mit.edu
We introduce an extension of independent component analysis (ICA), called multiscale ICA,
and design an approach to capture dynamic functional source interactions within and …

A Unified Framework for Modularizing and Comparing Time-Resolved Functional Connectivity Methods

A Faghiri, A Iraji, M Duda, T Adali… - 2022 44th Annual …, 2022 - ieeexplore.ieee.org
Functional connectivity is a widely used measure for finding the relationships between
functional entities of the brain. Recently, more focus has been put on the methods that aim to …

Cue-induced craving and negative emotion disrupt response inhibition in methamphetamine use disorder: Behavioral and fMRI results from a mixed Go/No-Go task

…, G Soleimani, SAH Batouli, K Kazemi, A Faghiri… - Drug and Alcohol …, 2022 - Elsevier
Background Drug-related cue-reactivity, dysfunctional negative emotion processing, and
response-disinhibition constitute three core aspects of methamphetamine use disorder (MUD). …

[HTML][HTML] Moving beyond the 'CAP'of the Iceberg: Intrinsic connectivity networks in fMRI are continuously engaging and overlapping

A Iraji, A Faghiri, Z Fu, P Kochunov, BM Adhikari… - NeuroImage, 2022 - Elsevier
Resting-state functional magnetic resonance imaging is currently the mainstay of functional
neuroimaging and has allowed researchers to identify intrinsic connectivity networks (aka …

Weighted average of shared trajectory: A new estimator for dynamic functional connectivity efficiently estimates both rapid and slow changes over time

A Faghiri, A Iraji, E Damaraju, A Belger, J Ford… - Journal of neuroscience …, 2020 - Elsevier
Background Dynamic functional network connectivity (dFNC) of the brain has attracted
considerable attention recently. Many approaches have been suggested to study dFNC with …

[HTML][HTML] Characterizing whole brain temporal variation of functional connectivity via zero and first order derivatives of sliding window correlations

…, E Damaraju, KG Henke, A Faghiri… - Frontiers in …, 2019 - frontiersin.org
Brain functional connectivity has been shown to change over time during resting state fMRI
experiments. Close examination of temporal changes have revealed a small set of whole-…