Results 11 to 20 of about 596,846 (253)

Spatial maps in piriform cortex during olfactory navigation [PDF]

open access: yesNature, 2020
SummaryOdors are a fundamental part of the sensory environment used by animals to inform behaviors such as foraging and navigation1, 2. Primary olfactory (piriform) cortex is thought to be dedicated to encoding odor identity3–8. Here, using neural ensemble recordings in freely moving rats performing a novel odor-cued spatial choice task, we show that ...
Cindy Poo   +3 more
openaire   +4 more sources

Basolateral amygdala to posterior piriform cortex connectivity ensures precision in learned odor threat

open access: yesScientific Reports, 2021
Odor perception can both evoke emotional states and be shaped by emotional or hedonic states. The amygdala complex plays an important role in recognition of, and response to, hedonically valenced stimuli, and has strong, reciprocal connectivity with the ...
Brett S. East   +5 more
doaj   +2 more sources

Recurrent circuitry is required to stabilize piriform cortex odor representations across brain states

open access: yeseLife, 2020
Pattern completion, or the ability to retrieve stable neural activity patterns from noisy or partial cues, is a fundamental feature of memory. Theoretical studies indicate that recurrently connected auto-associative or discrete attractor networks can ...
Kevin A Bolding   +4 more
doaj   +2 more sources

Doublecortin-immunoreactive neurons in the piriform cortex are sensitive to the long lasting effects of early life stress [PDF]

open access: yesFrontiers in Neuroscience
The olfactory system is a niche of continuous structural plasticity, holding postnatal proliferative neurogenesis in the olfactory bulbs and a population of immature neurons in the piriform cortex.
María Abellán-Álvaro   +8 more
doaj   +2 more sources

Essential Role of the Anterior Piriform Cortex in Mediating Social Novelty Output via a Top–Down Circuit [PDF]

open access: yesAdvanced Science
Social novelty is indispensable for a wide range of social behaviors. The medial prefrontal cortex (mPFC), along with other social information hubs, composes the foundational circuitry of social novelty.
Jingwei Zhou   +10 more
doaj   +2 more sources

Orchestration of Hippocampal Information Encoding by the Piriform Cortex [PDF]

open access: yesCerebral Cortex, 2019
Abstract The hippocampus utilizes olfactospatial information to encode sensory experience by means of synaptic plasticity. Odor exposure is also a potent impetus for hippocampus-dependent memory retrieval. Here, we explored to what extent the piriform cortex directly impacts upon hippocampal information processing and storage.
Strauch, Christina   +1 more
openaire   +3 more sources

The circadian clock in the piriform cortex intrinsically tunes daily changes of odor-evoked neural activity [PDF]

open access: yesCommunications Biology, 2023
Loss of the clock gene, Bmal1, in the piriform cortex largely abolishes the circadian rhythm of odor-evoked activity in mice, suggesting a broader regulatory role for Bmal1 in olfactory neural activity and transmission.
Shunsuke Takeuchi   +3 more
doaj   +2 more sources

Preprocessing of emotional visual information in the human piriform cortex

open access: yesScientific Reports, 2017
This study examines the processing of visual information by the olfactory system in humans. Recent data point to the processing of visual stimuli by the piriform cortex, a region mainly known as part of the primary olfactory cortex.
Patrick Schulze   +4 more
doaj   +2 more sources

Optogenetic stimulation of lateral amygdala input to posterior piriform cortex modulates single-unit and ensemble odor processing

open access: yesFrontiers in Neural Circuits, 2015
Olfactory information is synthesized within the olfactory cortex to provide not only an odor percept, but also a contextual significance that supports appropriate behavioral response to specific odor cues.
Benjamin eSadrian   +3 more
doaj   +2 more sources

Differential connectivity of the posterior piriform cortex in Parkinson’s disease and postviral olfactory dysfunction: an fMRI study [PDF]

open access: yesScientific Reports
Olfactory dysfunction is a common feature of both postviral upper respiratory tract infections (PV) and idiopathic Parkinson’s disease (PD). Our aim was to investigate potential differences in the connectivity of the posterior piriform cortex, a major ...
Charalampos Georgiopoulos   +5 more
doaj   +2 more sources

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