Results 61 to 70 of about 20,909 (254)

Neuromodulation and the Functional Dynamics of Piriform Cortex [PDF]

open access: yesChemical Senses, 2001
Acetylcholine and norepinephrine have a number of effects at the cellular level in the piriform cortex. Acetylcholine causes a depolarization of the membrane potential of pyramidal cells and interneurons, and suppresses the action potential frequency accommodation of pyramidal cells.
C, Linster, M E, Hasselmo
openaire   +2 more sources

The cell cycle–apoptosis connection revisited in the adult brain [PDF]

open access: yes, 2005
Adult neurogenesis is studied in vivo using thymidine analogues such as bromodeoxyuridine (BrdU) to label DNA synthesis during the S phase of the cell cycle.
Bauer, Sylvian, Patterson, Paul H.
core   +3 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   +1 more source

Altered functional connectivity within the default mode network in two animal models with opposing episodic memories. [PDF]

open access: yesPLoS ONE, 2018
Memory enhancement and memory decline are two opposing cognitive performances commonly observed in clinical practice, yet the neural mechanisms underlying these two different phenomena remain poorly understood. Accumulating evidence has demonstrated that
Muhuo Ji   +3 more
doaj   +1 more source

Spike frequency adaptation affects the synchronization properties of networks of cortical oscillators [PDF]

open access: yes, 1997
Oscillations in many regions of the cortex have common temporal characteristics with dominant frequencies centered around the 40 Hz (gamma) frequency range and the 5–10 Hz (theta) frequency range.
Bower, James M.   +2 more
core   +3 more sources

Smell-induced gamma oscillations in human olfactory cortex are required for accurate perception of odor identity.

open access: yesPLoS Biology, 2022
Studies of neuronal oscillations have contributed substantial insight into the mechanisms of visual, auditory, and somatosensory perception. However, progress in such research in the human olfactory system has lagged behind.
Qiaohan Yang   +7 more
doaj   +1 more source

Functional imaging of the piriform cortex in focal epilepsy [PDF]

open access: yesExperimental Neurology, 2020
Experiments in animal models have identified specific brain regions such as the deep anterior piriform cortex as important for controlling the initiation or propagation of both generalized and focal seizure activity. However, there is little experimental evidence to translate these observations to the control of focal seizures in humans.
Koepp, Matthias, Galovic, Marian
openaire   +3 more sources

Remembrance of Odors Past Human Olfactory Cortex in Cross-Modal Recognition Memory [PDF]

open access: yes, 2004
Episodic memory is often imbued with multisensory richness, such that the recall of an event can be endowed with the sights, sounds, and smells of its prior occurrence.
Gottfried, Jay A   +3 more
core   +1 more source

Single‐Field Evolution Rule Governs the Dynamics of Representational Drift in Mouse Hippocampal Dorsal CA1 Region

open access: yesAdvanced Science, EarlyView.
Long‐term hippocampal place‐code dynamics are investigated using calcium imaging across weeks of maze navigation. Analyses reveal a novelty‐irrelevant Single‐Field Evolution Rule (SFER), where active fields promote persistence and inactive fields decline.
Cong Chen   +10 more
wiley   +1 more source

Binaral Interactions in the Rat Piriform Cortex [PDF]

open access: yesJournal of Neurophysiology, 1997
Wilson, Donald A. Binaral interactions in the rat piriform cortex. J. Neurophysiol. 78: 160–169, 1997. Single-unit recordings were made from layer II/III anterior piriform cortex (aPCX) neurons in adult Wistar rats to examine odor response patterns to unilaterally and bilaterally delivered stimuli.
openaire   +2 more sources

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