Piriform cortex takes sides: temporally-segregated odor representations from ipsilateral and contralateral nostrils within a single sniff

GN Dikecligil, AI Yang, N Sanghani, T Lucas, HI Chen… - bioRxiv, 2023 - biorxiv.org
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 primary …

Odor representations from the two nostrils are temporally segregated in human piriform cortex

GN Dikeçligil, AI Yang, N Sanghani, T Lucas, HI Chen… - Current Biology, 2023 - cell.com
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 …

The how, when, and what of odor valence communication between the olfactory bulb and piriform cortex

F Nordén, B Iravani, M Schaefer, AL Winter… - bioRxiv, 2023 - biorxiv.org
ABSTRACT A core function of the olfactory system is to determine an odor's valence. The
central processing of odor valence is initiated in the olfactory bulb, but the neural …

[HTML][HTML] Odor identity can be extracted from the reciprocal connectivity between olfactory bulb and piriform cortex in humans

B Iravani, A Arshamian, M Lundqvist, LM Kay… - Neuroimage, 2021 - Elsevier
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) …

Anterior olfactory cortices differentially transform bottom-up odor signals to produce inverse top-down outputs

D Wolf, LL Oettl, L Winkelmeier, C Linster… - Journal of …, 2024 - jneurosci.org
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 …

Semantic context‐dependent neural representations of odors in the human piriform cortex revealed by 7T MRI

T Okumura, I Kida, A Yokoi, T Nakai… - Human Brain …, 2024 - Wiley Online Library
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 …

The human olfactory bulb communicates perceived odor valence to the piriform cortex in the gamma band and receives a refined representation back in the beta band

F Nordén, B Iravani, M Schaefer, AL Winter… - PLoS …, 2024 - journals.plos.org
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 …

Coding of odor stimulus features among secondary olfactory structures

CZ Xia, S Adjei, DW Wesson - Journal of neurophysiology, 2015 - journals.physiology.org
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 …

Parallel odor processing by two anatomically distinct olfactory bulb target structures

CA Payton, DA Wilson, DW Wesson - PloS one, 2012 - journals.plos.org
The olfactory cortex encompasses several anatomically distinct regions each hypothesized
to provide differential representation and processing of specific odors. Studies exploring …

Experience and behavior modulate piriform cortex odor representation in freely moving mice

IF Chapman, MA Raymond, ML Fletcher - bioRxiv, 2024 - biorxiv.org
In rodents, activity in the piriform cortex (PC) has been shown to reliably encode the identity
of olfactory information within single sessions of odor delivery. However, recent evidence …