Internal state

Recent articles

Illustration of a mouse with cheese on its left and a drop of water on its right.

Should I stay (and eat) or should I go? How the brain balances hunger with competing drives

Understanding the interplay among rival signals, such as pain, thirst and fear, could provide insights into anxiety and other neuropsychiatric conditions.

By Giorgia Guglielmi
11 October 2024 | 8 min read
Research image of neurons in the rat olfactory bulb.

Neurons in rat olfactory bulb ‘feel the pulse’

Mechanical receptors can detect intracranial pressure changes caused by blood flow, which enables neurons to synchronize with the heartbeat.

By Calli McMurray
26 March 2024 | 6 min read

Explore more from The Transmitter

Illustration of ants marching back to an anthill.

This paper changed my life: John Tuthill reflects on the subjectivity of selfhood

Wittlinger, Wehner and Wolf’s 2006 “stilts and stumps” Science paper revealed how ants pull off extraordinary feats of navigation using a biological odometer, and it inspired Tuthill to consider how other insects sense their own bodies.

By John Tuthill
12 January 2026 | 7 min read
Rhesus macaque monkey makes an intimidating face.

Some facial expressions are less reflexive than previously thought

A countenance such as a grimace activates many of the same cortical pathways as voluntary facial movements.

By Natalia Mesa
8 January 2026 | 5 min read
Mouse on top of drinking water spout in crowded cage.

Cracking the neural code for emotional states

Rather than act as a simple switchboard for innate behaviors, the hypothalamus encodes an animal's internal state, which influences behavior.

By Natalia Mesa
8 January 2026 | 8 min read

privacy consent banner

Privacy Preference

We use cookies to provide you with the best online experience. By clicking “Accept All,” you help us understand how our site is used and enhance its performance. You can change your choice at any time. To learn more, please visit our Privacy Policy.