Male mice exposed to females, their urine, or a chemical in their urine lost sensory neurons in their vomeronasal organs that respond to that chemical.
Impairments in the production of neurotransmitters may lead to depression in some patients, preliminary results show, opening new avenues for research.
Researchers seek to disentangle the complexity of the human mind from a cross-disciplinary perspective, but the phenomenon may be out of the reach of human understanding.