Excitatory signaling

Recent articles

Research image of proliferating neural cells.

Diverse autism genes derail common developmental pathways

Multiple genetic mouse models initially show delayed cortical development, but the animals’ molecular trajectories diverge within weeks after birth, a new study finds.

By Holly Barker
8 July 2026 | 5 min read
Illustration of a synapse.

Neuroscience needs single-synapse studies

Studying individual synapses has the potential to help neuroscientists develop new theories, better understand brain disorders and reevaluate 70 years of work on synaptic transmission plasticity.

By Seth Grant
17 February 2026 | 5 min read
Research image of SYNGAP protein in the mouse cortex.

Gene replacement therapy normalizes some traits in SYNGAP1 model mice

The first published virus-based gene therapy for SYNGAP1 deletion yields benefits despite the gene’s long length and complexity.

By Charles Q. Choi
20 November 2025 | 5 min read
Research image of mouse brain slices stained in red and blue.

Ramping up cortical activity in early life sparks autism-like behaviors in mice

The findings add fuel to the long-running debate over how an imbalance in excitatory and inhibitory signaling contributes to the autism.

By Sarah DeWeerdt
30 October 2025 | 6 min read
Research image showing cell activity in a particular region of the mouse thalamus.

Sensory gatekeeper drives seizures, autism-like behaviors in mouse model

The new work, in mice missing the autism-linked gene CNTNAP2, suggests a mechanism to help explain the overlap between epilepsy and autism.

By Diana Kwon
11 September 2025 | 4 min read
Research image of neurons in the interpeduncular nucleus.

‘Understudied secret’ in brain dampens nicotine drive in mice

The interpeduncular nucleus produces an aversion to nicotine, even at low doses, and helps moderate how rewarding mice find the drug.

By Lauren Schenkman
4 June 2025 | 4 min read
Detailed image of neurons in the mouse visual cortex.

Inhibitory cells work in concert to orchestrate neuronal activity in mouse brain

A cubic millimeter of brain tissue, meticulously sectioned, stained and scrutinized over the past seven years, reveals in stunning detail the role of inhibitory interneurons in brain structure and function.

By Katie Moisse
9 April 2025 | 6 min read
Research image of a fiber optic implant in a mouse brain.

Bespoke photometry system captures variety of dopamine signals in mice

The tool tracks the excitation of an engineered protein that senses dopamine’s absolute levels, including fast and slow fluctuations in real time, and offers new insights into how the signals change across the brain.

By Sydney Wyatt
21 March 2025 | 5 min read
High-resolution image of interconnected brain cells highlighted in magenta and blue.

What are recurrent networks doing in the brain?

The cortex is filled with excitatory local synapses, but we know little about their role in brain function. New experimental tools, along with ideas from artificial intelligence, are poised to change that.

By Mark Histed
16 December 2024 | 5 min read
Research image of mouse brain slices.

Newfound gene network controls long-range connections between emotional, cognitive brain areas

The finding could help unravel gene regulatory networks and explain how genetic and environmental factors interact in neurodevelopmental conditions.

By Charles Q. Choi
14 November 2024 | 4 min read

Explore more from The Transmitter

Illustration of a coral, sea urchin, snail, and fish.

Climate neuroscience needs ‘integration’ and ‘guided’ research

Five years after a groundbreaking paper, can a young field move beyond piecemeal studies?

By Sarah DeWeerdt
21 August 2026 | 7 min read
Neuronal genes SATB2 and MEF2C.

Nuclear location helps control gene activity during brain development

A study of developing human brain tissue suggests that genes switch on more strongly when they move from the nucleus’s edge toward structures that contain proteins involved in making and processing RNA.

By Giorgia Guglielmi
20 August 2026 | 4 min read
Cortical organoids.

Five-year-old human brain organoids aged on schedule

The cultured spheres typically mimic only prenatal development, but the five-year-old ones grown in Paola Arlotta’s lab acquired postnatal features.

By Claudia López Lloreda
19 August 2026 | 5 min read