People who show low social engagement over long periods of time often show reductions in cognitive function. Studies of the brain may provide clues about this correlation.

Absence of human contact is associated with declines in cognitive function. But as the COVID-19 pandemic brings concerns about the potential harms of isolation to the fore, researchers are still hunting for concrete evidence of a causal role as well as possible mechanisms.

Honeybees can remember reward-associated odors three days after a single learning experience.

Adult neurogenesis, already appreciated for its role in learning and memory, also participates in mental health and possibly even attention, new research suggests.

Rats and equations help researchers develop a theory of how our brains keep track of when events took place.

Signals from the lateral entorhinal cortex help create “time cells” in the hippocampus, according to some researchers.

Cutting-edge microscopy is revealing how new neurons made in adult mice’s brains tap into existing neuronal connections.

Honeybees can remember reward-associated odors three days after a single learning experience.

Those who had developed PTSD appear to be less able to suppress unwanted memories—traumatic or not—suggesting a role for the general ability to control memory recall in the disorder.