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
Explore more from The Transmitter
On the importance of reading (just not too much)
The real fun of being a neuroscientist, and maybe the key to asking and answering new questions, is to think big and take intellectual risks.
On the importance of reading (just not too much)
The real fun of being a neuroscientist, and maybe the key to asking and answering new questions, is to think big and take intellectual risks.
By
Sheena Josselyn
9 June 2025 | 8 min read
How developing neurons simplify their search for a synaptic mate
Streamlining the problem from 3D to 1D eases the expedition—a strategy the study investigators deployed to rewire an olfactory circuit in flies.
How developing neurons simplify their search for a synaptic mate
Streamlining the problem from 3D to 1D eases the expedition—a strategy the study investigators deployed to rewire an olfactory circuit in flies.
By
Calli McMurray
6 June 2025 | 6 min read
NIH autism database announcement raises concerns among researchers
The U.S. National Institutes of Health announced a plan to pour $50 million into data science projects intended to investigate the condition’s causes, but the initiative’s short timeline and other atypicalities have prompted questions.
NIH autism database announcement raises concerns among researchers
The U.S. National Institutes of Health announced a plan to pour $50 million into data science projects intended to investigate the condition’s causes, but the initiative’s short timeline and other atypicalities have prompted questions.
By
Angie Voyles Askham
5 June 2025 | 5 min read