Women with unexplained miscarriages have an altered behavioral and brain response to men's body-odor, and this may reflect a factor in their condition.
A combination of genetic, anatomical and physiological techniques has revealed that the lateral horn, a region of the brain involved in olfaction in flies, has many more types of neurons than expected.
Aliya Mari Adefuin, Sander Lindeman ... Izumi Fukunaga
Responses to odour mixtures are more discriminable in awake, behaving mice due to a combination of dampened responses keeping responses in the linear range and pattern decorrelation, with these two mechanisms operating on different timescales.
Tayfun Tumkaya, Safwan Burhanudin ... Adam Claridge-Chang
Of the 50 primary olfactory channels in vinegar flies, only 10 drive avoidance or approach behavior when activated by themselves, indicating that most olfactory responses are multi-channel responses that follow complex combination rules.
Teresa M Findley, David G Wyrick ... Matthew C Smear
To track odors borne on turbulent airflow, mice strategically follow their nose, with sampling movements and sensory computations reminiscent of those demonstrated in nematodes and insects.
Philipp Schlegel, Alexander Shakeel Bates ... Gregory S X E Jefferis
Synaptic resolution analysis of a full olfactory connectome reveals lateralised circuits, convergence of innate and learned pathways, and shows that homologous neurons are highly stereotyped within and across brains.
Joaquin Gonzalez, Pablo Torterolo, Adriano BL Tort
Computational analyses of in-vivo cerebral activity show that gamma oscillations in the olfactory cortex originate from local feedback inhibition following each sniff and serve to segregate competing odor representations through a winner-take-all process, providing an optimal window to decode odor.
Human primary olfactory cortical regions can be parcellated into anatomically distinct areas based on whole-brain functional connectivity profiles, suggesting distinct, parallel functional pathways in the human olfactory system.