Sex hormones

Recent articles

Large-scale neuroimaging datasets often lack information specific to women’s health, constraining AI’s analysis potential

Addressing this gap will require collecting widespread data on pregnancy, menopause and other life events women experience—and could bring us closer to the “holy grail” of linking brain and behavior.

By Amy Kuceyeski
16 March 2026 | 0 min watch
Research image of serotonin and dopamine expression in rats.

Sex hormone boosts female rats’ sensitivity to unexpected rewards

During the high-estradiol stages of their estrus cycle, female rats learn faster than they do during other stages—and than male rats overall—thanks to a boost in their dopaminergic response to reward, a new study suggests.

By Angie Voyles Askham
26 November 2025 | 5 min read
Abstract flowing shapes.

Perimenopause: An important—and understudied—transition for the brain

Many well-known perimenopause symptoms arise in the brain, but we still know little about the specific mechanisms at play. More research—in both animals and humans—is essential.

By Marija Kundakovic
12 November 2025 | 6 min read
Developing human fetus.

Gene-activity map of developing brain reveals new clues about autism’s sex bias

Boys and girls may be vulnerable to different genetic changes, which could help explain why the condition is more common in boys despite linked variants appearing more often in girls.

By Giorgia Guglielmi
16 October 2025 | 5 min read
Research image of excitatory neurons in the mouse hippocampus.

Spatial learning circuitry fluctuates in step with estrous cycle in mice

Cyclic shifts in estradiol levels coincide with changes in dendritic spine density and the activity of place cells in the CA1 region of the hippocampus, a new study shows.

By Sydney Wyatt
25 June 2025 | 5 min read
Research image of the spinal meninges in mice.

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
Photograph of a cardinal with male-typical red feathers on one side and more drab, female-typical feathers on the other.

What birds can teach us about the ‘biological truth’ of sex

Part of our job as educators is to give students a deeper understanding of the true diversity of sex and gender in the natural world.

By Nicole M. Baran
22 April 2025 | 7 min read
Abstract illustration of a feminine face in structural flux.

Revisiting sex and gender in the brain

To conduct scientifically accurate and socially responsible research, it is useful to think of “sex” as a complex, multifactorial and context-dependent variable.

By Marija Kundakovic
28 January 2025 | 8 min read
Grid of human brain scans.

Dose, scan, repeat: Tracking the neurological effects of oral contraceptives

We know little about how the brain responds to oral contraceptives, despite their widespread use. I am committed to changing that: I scanned my brain 75 times over the course of a year and plan to make my data openly available.

By Carina Heller
20 January 2025 | 7 min read
Illustration of men’s and women’s faces.

Males and females show different patterns of risk for brain-based conditions. Ignoring these differences does us all a disservice.

Although studying sex differences in the brain is complex, technically awkward and socioculturally loaded, it is absolutely essential.

By Armin Raznahan
9 December 2024 | 8 min read

Explore more from The Transmitter

Taking a closer look at astrocytes and autism

These glial cells are increasingly linked to neurodevelopmental conditions and the regulation of social behaviors and anxiety.

By The Transmitter
2 April 2026 | 2 min read

Neuro’s ark: Sounding out the evolution of hearing with geckos

Catherine Carr explains her discovery that geckos retain a vibration-sensing pathway previously thought to be lost when animals moved onto land.

By Helena Kudiabor
1 April 2026 | 5 min read
Magnifying glass.

Researchers retract multisensory learning paper after failed replications

Even though one set of experiments did not hold up, the authors stand by the original conclusions of the work and plan to resubmit it as a new paper.

By Calli McMurray
31 March 2026 | 4 min read