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
Protein tug-of-war controls pace of synaptic development, sets human brains apart
Human-specific duplicates of SRGAP2 prolong cortical development by manipulating SYNGAP, an autism-linked protein that slows synaptic growth.
Protein tug-of-war controls pace of synaptic development, sets human brains apart
Human-specific duplicates of SRGAP2 prolong cortical development by manipulating SYNGAP, an autism-linked protein that slows synaptic growth.
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Holly Barker
23 October 2025 | 7 min read
Neurons tune electron transport chain to survive onslaught of noxious stimuli
Nociceptors tamp down the production of reactive oxygen species in response to heat, chemical irritants or toxins.
Neurons tune electron transport chain to survive onslaught of noxious stimuli
Nociceptors tamp down the production of reactive oxygen species in response to heat, chemical irritants or toxins.
By
Viviane Callier
22 October 2025 | 5 min listen
Vicente Raja brings ecological psychology concepts to neuroscience
He suggests neuroscientists should pay more attention to the principles of Gibsonian ecological psychology, such as affordances, ecological information and resonance, to better explain perception and action.
Vicente Raja brings ecological psychology concepts to neuroscience
He suggests neuroscientists should pay more attention to the principles of Gibsonian ecological psychology, such as affordances, ecological information and resonance, to better explain perception and action.
By
Paul Middlebrooks
22 October 2025 | 99 min listen