This valuable study shows that an odorant that is typically thought of as a repellant actually activates both attractant and repellant olfactory neurons in C. elegans. Solid evidence is provided that ...

Findings indicate that non-human animals can categorize complex olfactory stimuli without linguistic or human-specific cognitive abilities.

"To analyze how the amygdala functions during depression, we measured the activity of some networks of neurons involved in the more or less negative interpretation of olfactory stimuli," says Alonso.

These dogs were exposed to four distinct scent stimuli—garlic, menthol, alcohol ... and this research further illuminates the advanced processes that occur in their brains when detecting odors. With ...