Norepinephrine

Recent articles

Research image of astrocytes in the mouse brain.

Astrocytes in mouse amygdala encode emotional state

The glial cells’ activity reliably tracks with freezing, hesitancy and other behaviors reminiscent of anxiety.

By Holly Barker
24 March 2026 | 4 min read

Snoozing dragons stir up ancient evidence of sleep’s dual nature

Deep-sleep cycling between brain waves of higher and lower amplitude dates far back on the evolutionary tree, according to a new comparative study of mammals and reptiles.

By Lauren Schenkman
29 December 2025 | 0 min watch
Photograph of Floyd Bloom.

Remembering the life of neuropharmacologist Floyd Bloom

The co-author of the classic textbook “The Biochemical Basis of Neuropharmacology” and pioneer in studying the roles of neurotransmitters in the brain died on 8 January at 88 years old.

By Sydney Wyatt
24 January 2025 | 7 min read
Three sleeping mice.

Fleeting sleep interruptions may help brain reset

Brief, seconds-long microarousals during deep sleep “ride on the wave” of locus coeruleus activity in mice and correlate with periods of waste clearing and memory consolidation, new research suggests.

By Shaena Montanari
13 January 2025 | 5 min read
Illustration of a thermostat set to 22 point 5 degrees celsius, with a silhouette of a mouse adjusting its dial.

Mouse housing temperatures can cook experimental outcomes

Neuroscientists need to take note of how thermoregulatory processes influence the brain and behavior—for the sake of reproducibility and animal welfare.

By Caitlin James, Elizabeth Repasky, Sandra Sexton
5 November 2024 | 5 min read

Explore more from The Transmitter

Ehud Ahissar offers a new kind of dualism for neuroscience

He explains how “perceptual dualism” can account for the way we communicate via digital symbols and perceive the world via analog brain processes.

By Paul Middlebrooks
6 May 2026 | 102 min listen

Microglia in hypothalamus help kick-start puberty

In a “surprise” role, the cells regulate the neurons that produce gonadotropin-releasing hormone.

By Helena Kudiabor
6 May 2026 | 0 min watch
DNA helix.

Advances in genetic medicine took center stage at INSAR

The president of the Autism Science Foundation and parent of a child with profound autism reflects on how advances in the treatment of rare gene variants bring hope to many families.

By Alison Singer
5 May 2026 | 4 min read