Author

Alexandra K. Fischbach

Northeastern UniversityORCID 0000-0002-7927-9176Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Signature Assays, Organisms & Methods

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Assay:imaging· 4 Organism:human· 3 Research Focus:benchmarking· 2 Approach:experimental assay· 2 Approach:statistical model· 2 Research Focus:differential expression· 1 Research Focus:variant calling· 1

Frequent Co-Authors

Ajay B. SatputeiD· 2 shared Dustin ScheinostiD· 2 shared Fabricio CravoiD· 2 shared Hallee SheareriD· 2 shared Ji‐Kyung ChoiiD· 2 shared Jordan E. TheriaultiD· 2 shared Karen S. QuigleyiD· 2 shared Lawrence L. WaldiD· 2 shared

Activity by Year

2022-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 24 mutual co-author links

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2 shared papersNeuroscience

Ajay B. SatputeORCID

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Author profile →

4 papers

Recent·Most cited

The Hidden Landscape of Missed Effects in Human Functional Neuroimaging

Stephanie Noble, Hallee Shearer, Matthew Rosenblatt, Jean Ye, Rongtao Jiang, Link Tejavibulya, Maya L. Foster, Qinghao Liang, Javid Dadashkarimi, Margaret L. Westwater, Iris Q. Cheng, Max J. Rolison, Hannah Peterson, Brendan D. Adkinson, Saloni Mehta, , Dustin Scheinost

The paper identifies inflated effect sizes in functional neuroimaging studies and proposes a correction method to improve study planning and detection of brain effects.

bioRxiv · May 24, 2026 · PreprintNeuroscience

PRISME: A MATLAB Toolbox For Large Data-Driven Multimodal Power Benchmarking

Fabricio Cravo, Alexandra K. Fischbach, Hallee Shearer, Matthew Rosenblatt, Dustin Scheinost, Stephanie Noble

PRISME is a MATLAB toolbox for neuroimaging power benchmarking that enables large-scale empirical power analysis across diverse data types and test types.

bioRxiv · Jan 22, 2026 · PreprintNeuroscience

7-Tesla evidence for columnar and rostral-caudal organization of the human periaqueductal grey response in the absence of threat: a working memory study.

Alexandra K. Fischbach, Ajay B. Satpute, Karen S. Quigley, Philip A. Kragel, Danlei Chen, Marta Bianciardi, Lawrence L. Wald, Tor Dessart Wager, Ji‐Kyung Choi, Jiahe Zhang, Lisa Feldman Barrett, Jordan E. Theriault

This study uses 7-Tesla fMRI to show that the human periaqueductal grey (PAG) shows bilateral BOLD increases during a working memory task without threat, suggesting a broader role in brain-body communication.

Journal of Neuroscience · Apr 25, 2024Peer-reviewedNeuroscience

Distinct spatial patterns of neural and physiology-related activity in the human periaqueductal grey during anticipatory social stress.

Jordan E. Theriault, Alexandra K. Fischbach, Philip A. Kragel, Tor Dessart Wager, Lawrence L. Wald, Marta Bianciardi, Ji‐Kyung Choi, J. Zhang, Karen S. Quigley, Lisa Feldman Barrett, Ajay B. Satpute

The paper examines spatial patterns of PAG activity and physiological responses during social stress in humans using 7T imaging.

bioRxiv · Dec 29, 2022 · PreprintNeuroscience