Anxiety
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‘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.

‘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.
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.

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.
Rethinking mental health: The body’s impact on the brain
Mounting evidence illustrates how peripheral molecules can influence brain function, offering new therapeutic targets.

Rethinking mental health: The body’s impact on the brain
Mounting evidence illustrates how peripheral molecules can influence brain function, offering new therapeutic targets.
Vasopressin boosts sociability in solitary monkeys
Inhaling the hormone did not increase aggression in unsociable rhesus macaques and appears to help the animals remember faces and reciprocate friendly behaviors.

Vasopressin boosts sociability in solitary monkeys
Inhaling the hormone did not increase aggression in unsociable rhesus macaques and appears to help the animals remember faces and reciprocate friendly behaviors.
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.

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.
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.

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.
Neurotransmitter switch-up helps fan extreme stress into full-blown fear
The flip occurs when certain neurons in the dorsal raphe start to express the chemical GABA instead of glutamate, a new study shows.

Neurotransmitter switch-up helps fan extreme stress into full-blown fear
The flip occurs when certain neurons in the dorsal raphe start to express the chemical GABA instead of glutamate, a new study shows.
Temperament is innate but hackable, animal studies suggest
Emotional reactivity and vulnerability to stress are largely inherited in rodents — but can be modified in early life by targeting inflammation-related cells or even just adjusting an animal’s environment.

Temperament is innate but hackable, animal studies suggest
Emotional reactivity and vulnerability to stress are largely inherited in rodents — but can be modified in early life by targeting inflammation-related cells or even just adjusting an animal’s environment.
Year in Review: Spectrum’s best in 2023
Here are five must-reads from our coverage of autism research over the past 12 months.

Year in Review: Spectrum’s best in 2023
Here are five must-reads from our coverage of autism research over the past 12 months.
Autism research hits the road
Some scientists are thinking creatively about how to collect data in flexible environments and meet communities where they’re at.
Autism research hits the road
Some scientists are thinking creatively about how to collect data in flexible environments and meet communities where they’re at.
Explore more from The Transmitter
Autism-linked copy number variants always boost autism likelihood
By contrast, varied doses of the same genes decrease or increase the odds of five other conditions, with distinct biological consequences, two new preprints show.

Autism-linked copy number variants always boost autism likelihood
By contrast, varied doses of the same genes decrease or increase the odds of five other conditions, with distinct biological consequences, two new preprints show.
Everything everywhere all at once: Decision-making signals engage entire brain
The findings, gleaned from the most comprehensive map yet of brain activity during decision-making in mice, show that the process is even more distributed than previously thought.

Everything everywhere all at once: Decision-making signals engage entire brain
The findings, gleaned from the most comprehensive map yet of brain activity during decision-making in mice, show that the process is even more distributed than previously thought.
Astrocyte networks span large swaths of brain
The networks are plastic, connect brain regions that aren’t connected by neurons and may enable long-distance communication between astrocytes, a new preprint shows.
Astrocyte networks span large swaths of brain
The networks are plastic, connect brain regions that aren’t connected by neurons and may enable long-distance communication between astrocytes, a new preprint shows.