The human olfactory system has two discrete channels of sensory input, arising from
olfactory epithelia housed in the left and right nostrils. Here, we asked whether the primary …

Neuronal oscillations route external and internal information across brain regions. In the
olfactory system, the two central nodes—the olfactory bulb (OB) and the piriform cortex (PC) …

Sensory systems must represent stimuli in manners dependent upon a wealth of factors,
including stimulus intensity and duration. One way the brain might handle these complex …

Olfactory perception depends not only on olfactory inputs but also on semantic context.
Although multi‐voxel activity patterns of the piriform cortex, a part of the primary olfactory …

A core function of the olfactory system is to determine the valence of odors. In humans,
central processing of odor valence perception has been shown to take form already within …

Odor information arrives first in the main olfactory bulb and is then broadcasted to the
olfactory cortices and striatum. Downstream regions have unique cellular and connectivity …

Highlights•Odor information is encoded in the distributed activity of piriform cortex
neurons.•Piriform uses complementary coding strategies to represent odor identity and …

Neurons in the neocortex exhibit spontaneous spiking activity in the absence of external
stimuli, but the origin and functions of this activity remain uncertain. Here, we show that …

Increased understanding of the early stages of olfaction has lead to a renewed interest in the
higher brain regions responsible for forming unified 'odor images' from the chemical …

Coding of odorous stimuli has been mostly studied using single isolated stimuli. However, a
single sniff of air in a natural environment is likely to introduce airborne chemicals emitted by …