Researchers have identified what makes synapses strong or weak in fruit flies.

Host slugs given Prozac to increase their serotonin levels no longer avoid parasitic nematodes, the same behavior seen in infected slugs.

Researchers unveil the neural basis of alertness in larval zebrafish.   

The Dartmouth College professor uses optogenetics to probe the neurological routes of habitual behavior.

One-third of babies who died of SIDS had higher-than-normal levels of the neurotransmitter in their blood serum, according to a study. 

Results from experiments in mice revise a long-held hypothesis that certain protein scaffolds are needed for synaptic activity.

Impairments in the production of neurotransmitters may lead to depression in some patients, preliminary results show, opening new avenues for research.

A study in roundworms hints at how the drug may exert therapeutic effects.

Serotonin’s long-debated role in sleep promotion is temperature-dependent.

A web of cell types in one of the brain’s chief wake centers keeps animals up—but also puts them to sleep.