Maris Fessenden is a freelance journalist and illustrator based in Bozeman, Montana. They report and write about scientific methods, genetics, health, wildlife and ecology, and the intersection of science and art.
Maris Fessenden
Contributing writer
Freelance
From this contributor
Lightweight system captures brain activity while mice jump
A thin “micro-tether” and rotating connector facilitate uninterrupted, hours-long neural population recordings as the animals freely explore their environment.
Lightweight system captures brain activity while mice jump
By
Maris Fessenden
26 September 2023 | 3 min read
Atlas of developing brain reveals rainbow of cell types
An online resource reveals all major cell types in the developing human brain during the period in which autism is thought to arise.
Atlas of developing brain reveals rainbow of cell types
By
Maris Fessenden
20 September 2019 | 2 min read
New method dramatically scales up mapping of active genes in cells
A new technique enables scientists to isolate, and chart gene expression in, tens of thousands of cells at once.
New method dramatically scales up mapping of active genes in cells
By
Maris Fessenden
23 August 2019 | 2 min read
Online platform offers one-stop shop for studying brain circuits
A browser-based platform simulates functional neuronal circuits in the brain regions of several species.
Online platform offers one-stop shop for studying brain circuits
By
Maris Fessenden
2 August 2019 | 2 min read
Database, lab tricks may crack secrets of the synapse
Two new resources may aid the study of synapses, the junctions between neurons.
Database, lab tricks may crack secrets of the synapse
By
Maris Fessenden
19 July 2019 | 2 min read
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Escaping groupthink: What animals’ behavioral quirks reveal about the brain
Neuroscientists have long ignored the variability in animals’ behavioral responses in favor of studying differences across groups. But work on the brain differences that underlie that variability is beginning to pay off.
Escaping groupthink: What animals’ behavioral quirks reveal about the brain
Neuroscientists have long ignored the variability in animals’ behavioral responses in favor of studying differences across groups. But work on the brain differences that underlie that variability is beginning to pay off.
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Angie Voyles Askham
23 May 2025 | 0 min watch
Immune cells block pain in female mice only
Regulatory T cells in the spinal meninges release endogenous opioids in a sex-specific manner, new work shows.
Immune cells block pain in female mice only
Regulatory T cells in the spinal meninges release endogenous opioids in a sex-specific manner, new work shows.
By
Angie Voyles Askham
22 May 2025 | 5 min read
Exclusive: Layoffs revoked at U.S. National Institute of Neurological Disorders and Stroke
After more than a month of uncertainty, 30 previously purged employees at the institute no longer face termination.
Exclusive: Layoffs revoked at U.S. National Institute of Neurological Disorders and Stroke
After more than a month of uncertainty, 30 previously purged employees at the institute no longer face termination.
By
Angie Voyles Askham, Sydney Wyatt
21 May 2025 | 3 min read