Animal models

Recent articles

Research image of human cortical neurons xenotransplanted into a mouse brain for months.

In vivo veritas: Xenotransplantation can help us study the development and function of human neurons in a living brain

Transplanted cells offer insight into human-specific properties, such as a lengthy cortical development and sensitivity to neurodevelopmental and neurodegenerative disease.

By Pierre Vanderhaeghen
7 April 2025 | 7 min read
Tiger in a brain scanner.

Lions and tigers and bears: Long-lived zoo animals offer a promising venue to study mental health and neurodegenerative disorders

These animals’ lifestyles often mirror those of people, making them a more relevant milieu than lab mice for determining how environmental factors influence mental health and cognitive decline. Studying them could improve animal welfare in the process.

By Christine J. Charvet
17 March 2025 | 5 min read
Side view of a Tardigrade.

How tiny tardigrades could help tackle systems neuroscience questions

The eight-legged, millimeter-long animals reveal how small nervous systems produce complex behaviors and perceptual abilities, a preprint suggests.

By Dori Grijseels
11 March 2025 | 6 min read
Two mice sleeping.

Soft touch quells loneliness in mice

Touch modulates one of two dueling types of hypothalamic neurons that, thermostat-like, balance an animal’s drive for social interaction.

By Angie Voyles Askham
26 February 2025 | 6 min read
Research image of serotonin and dopamine neurons manipulated simultaneously in mice.

Dopamine ‘gas pedal’ and serotonin ‘brake’ team up to accelerate learning

Mice learn fastest and most reliably when they experience an increase in dopamine paired with an inhibition of serotonin in their nucleus accumbens, a new study shows, helping to resolve long-standing questions about the neuromodulators’ relationship.

By Angie Voyles Askham
12 February 2025 | 5 min read

Plaque levels differ in popular Alzheimer’s mouse model depending on which parent’s variants are passed down

5XFAD model mice that inherit two disease-related genes from their fathers have double the plaques seen in those with maternal inheritance, a new study shows.

By Shaena Montanari
4 February 2025 | 0 min watch
Different colored file folders.

Protocol-sharing site aims to ease administrative burden of animal research

The library of regulatory-compliant animal procedures offers experimental standards and specific language that researchers can borrow for their own legal paperwork.

By Calli McMurray
29 January 2025 | 4 min read
Multiple people look together at a whiteboard in a lab.

Why practical summer courses in neuroscience matter

Among other reasons, this tradition helps researchers rekindle the unfettered joy that initially brought them to the field.

By John Tuthill
13 January 2025 | 7 min read
Research image of gene expression in cells in the third ventricle of the hypothalamus of young and aged mice.

Age-related brain changes in mice strike hypothalamus ‘hot spot’

Neuronal and non-neuronal cells throughout the brain also express genes—particularly those related to neuronal structure and immune function—differently in aged mice, according to a new atlas.

By Angie Voyles Askham
8 January 2025 | 6 min listen
Illustration of a shrew, sandpiper, locust, axolotl, monarch butterfly, African killifish, naked mole rat, octopus, bat and cichlid.

The non-model organism “renaissance” has arrived

Meet 10 neuroscientists bringing model diversity back with the funky animals they study.

Explore more from The Transmitter

Research image of resting-state functional activity in a human brain.

Developmental delay patterns differ with diagnosis; and more

Here is a roundup of autism-related news and research spotted around the web for the week of 14 April.

By Jill Adams
15 April 2025 | 2 min read
Illustration of a treeline in front of a human brain.

‘Natural Neuroscience: Toward a Systems Neuroscience of Natural Behaviors,’ an excerpt

In his new book, published today, Nachum Ulanovsky calls on the field to embrace naturalistic conditions and move away from overcontrolled experiments.

By Nachum Ulanovsky
15 April 2025 | 9 min read
Close-up of high-resolution fMRI images.

Functional MRI can do more than you think

Recent technological advances provide a range of new and different information about brain physiology. But taking full advantage of these gains depends on collaboration between engineers and neuroscientists.

By Laura Lewis
14 April 2025 | 6 min read