journal
https://read.qxmd.com/read/38523698/olfactory-information-processing-viewed-through-mitral-and-tufted-cell-specific-channels
#1
REVIEW
Tatsumi Hirata
Parallel processing is a fundamental strategy of sensory coding. Through this processing, unique and distinct features of sensations are computed and projected to the central targets. This review proposes that mitral and tufted cells, which are the second-order projection neurons in the olfactory bulb, contribute to parallel processing within the olfactory system. Based on anatomical and functional evidence, I discuss potential features that could be conveyed through the unique channel formed by these neurons...
2024: Frontiers in Neural Circuits
https://read.qxmd.com/read/38505865/an-operating-principle-of-the-cerebral-cortex-and-a-cellular-mechanism-for-attentional-trial-and-error-pattern-learning-and-useful-classification-extraction
#2
JOURNAL ARTICLE
Marat M Rvachev
A feature of the brains of intelligent animals is the ability to learn to respond to an ensemble of active neuronal inputs with a behaviorally appropriate ensemble of active neuronal outputs. Previously, a hypothesis was proposed on how this mechanism is implemented at the cellular level within the neocortical pyramidal neuron: the apical tuft or perisomatic inputs initiate "guess" neuron firings, while the basal dendrites identify input patterns based on excited synaptic clusters, with the cluster excitation strength adjusted based on reward feedback...
2024: Frontiers in Neural Circuits
https://read.qxmd.com/read/38476709/the-ventral-hippocampus-is-activated-in-olfactory-but-not-auditory-threat-memory
#3
JOURNAL ARTICLE
Tayebeh Sepahvand, Samantha J Carew, Qi Yuan
Hippocampal networks required for associative memory formation are involved in cue- and context-dependent threat conditioning. The hippocampus is functionally heterogeneous at its dorsal and ventral poles, and recent investigations have focused on the specific roles required from each sub-region for associative conditioning. Cumulative evidence suggests that contextual and emotional information is processed by the dorsal and ventral hippocampus, respectively. However, it is not well understood how these two divisions engage in threat conditioning with cues of different sensory modalities...
2024: Frontiers in Neural Circuits
https://read.qxmd.com/read/38434487/circuit-formation-and-sensory-perception-in-the-mouse-olfactory-system
#4
REVIEW
Kensaku Mori, Hitoshi Sakano
In the mouse olfactory system, odor information is converted to a topographic map of activated glomeruli in the olfactory bulb (OB). Although the arrangement of glomeruli is genetically determined, the glomerular structure is plastic and can be modified by environmental stimuli. If the pups are exposed to a particular odorant, responding glomeruli become larger recruiting the dendrites of connecting projection neurons and interneurons. This imprinting not only increases the sensitivity to the exposed odor, but also imposes the positive quality on imprinted memory...
2024: Frontiers in Neural Circuits
https://read.qxmd.com/read/38322807/i-like-therefore-i-can-and-i-can-therefore-i-like-the-role-of-self-efficacy-and-affect-in-active-inference-of-allostasis
#5
JOURNAL ARTICLE
Valery Krupnik
Active inference (AIF) is a theory of the behavior of information-processing open dynamic systems. It describes them as generative models (GM) generating inferences on the causes of sensory input they receive from their environment. Based on these inferences, GMs generate predictions about sensory input. The discrepancy between a prediction and the actual input results in prediction error. GMs then execute action policies predicted to minimize the prediction error. The free-energy principle provides a rationale for AIF by stipulating that information-processing open systems must constantly minimize their free energy (through suppressing the cumulative prediction error) to avoid decay...
2024: Frontiers in Neural Circuits
https://read.qxmd.com/read/38343616/optimization-of-modularity-during-development-to-simplify-walking-control-across-multiple-steps
#6
JOURNAL ARTICLE
Elodie Hinnekens, Bastien Berret, Estelle Morard, Manh-Cuong Do, Marianne Barbu-Roth, Caroline Teulier
INTRODUCTION: Walking in adults relies on a small number of modules, reducing the number of degrees of freedom that needs to be regulated by the central nervous system (CNS). While walking in toddlers seems to also involve a small number of modules when considering averaged or single-step data, toddlers produce a high amount of variability across strides, and the extent to which this variability interacts with modularity remains unclear. METHODS: Electromyographic activity from 10 bilateral lower limb muscles was recorded in both adults ( n  = 12) and toddlers ( n  = 12) over 8 gait cycles...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38298741/neural-basis-for-behavioral-plasticity-during-the-parental-life-stage-transition-in-mice
#7
REVIEW
Kazunari Miyamichi
Parental care plays a crucial role in the physical and mental well-being of mammalian offspring. Although sexually naïve male mice, as well as certain strains of female mice, display aggression toward pups, they exhibit heightened parental caregiving behaviors as they approach the time of anticipating their offspring. In this Mini Review, I provide a concise overview of the current understanding of distinct limbic neural types and their circuits governing both aggressive and caregiving behaviors toward infant mice...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38259953/computational-components-of-visual-predictive-coding-circuitry
#8
REVIEW
Stewart Shipp
If a full visual percept can be said to be a 'hypothesis', so too can a neural 'prediction' - although the latter addresses one particular component of image content (such as 3-dimensional organisation, the interplay between lighting and surface colour, the future trajectory of moving objects, and so on). And, because processing is hierarchical, predictions generated at one level are conveyed in a backward direction to a lower level, seeking to predict, in fact, the neural activity at that prior stage of processing, and learning from errors signalled in the opposite direction...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38239606/topological-data-analysis-of-the-firings-of-a-network-of-stochastic-spiking-neurons
#9
JOURNAL ARTICLE
Xiaotian Bai, Chaojun Yu, Jian Zhai
Topological data analysis is becoming more and more popular in recent years. It has found various applications in many different fields, for its convenience in analyzing and understanding the structure and dynamic of complex systems. We used topological data analysis to analyze the firings of a network of stochastic spiking neurons, which can be in a sub-critical, critical, or super-critical state depending on the value of the control parameter. We calculated several topological features regarding Betti curves and then analyzed the behaviors of these features, using them as inputs for machine learning to discriminate the three states of the network...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38239605/the-corticofugal-oscillatory-modulation-of-the-cochlear-receptor-during-auditory-and-visual-attention-is-preserved-in-tinnitus
#10
JOURNAL ARTICLE
Rodrigo Donoso-San Martín, Alexis Leiva, Constantino D Dragicevic, Vicente Medel, Paul H Delano
INTRODUCTION: The mechanisms underlying tinnitus perception are still under research. One of the proposed hypotheses involves an alteration in top-down processing of auditory activity. Low-frequency oscillations in the delta and theta bands have been recently described in brain and cochlear infrasonic signals during selective attention paradigms in normal hearing controls. Here, we propose that the top-down oscillatory activity observed in brain and cochlear signals during auditory and visual selective attention in normal subjects, is altered in tinnitus patients, reflecting an abnormal functioning of the corticofugal pathways that connect brain circuits with the cochlear receptor...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38186631/-in-vivo-recordings-in-freely-behaving-mice-using-independent-silicon-probes-targeting-multiple-brain-regions
#11
JOURNAL ARTICLE
Emanuel Ferreira-Fernandes, Mariana Laranjo, Tiago Reis, Bárbara Canijo, Pedro A Ferreira, Pedro Martins, João Vilarinho, Mahmoud Tavakoli, Carolina Kunicki, João Peça
In vivo recordings in freely behaving animals are crucial to understand the neuronal circuit basis of behavior. Although current multi-channel silicon probes provide unparalleled sampling density, the study of interacting neuronal populations requires the implantation of multiple probes across different regions of the brain. Ideally, these probes should be independently adjustable, to maximize the yield, and recoverable, to mitigate costs. In this work, we describe the implementation of a miniaturized 3D-printed headgear system for chronic in vivo recordings in mice using independently movable silicon probes targeting multiple brain regions...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38186630/do-we-all-synch-alike-brain-body-environment-interactions-in-asd
#12
JOURNAL ARTICLE
Shlomit Beker, Sophie Molholm
Autism Spectrum Disorder (ASD) is characterized by rigidity of routines and restricted interests, and atypical social communication and interaction. Recent evidence for altered synchronization of neuro-oscillatory brain activity with regularities in the environment and of altered peripheral nervous system function in ASD present promising novel directions for studying pathophysiology and its relationship to ASD clinical phenotype. Human cognition and action are significantly influenced by physiological rhythmic processes that are generated by both the central nervous system (CNS) and the autonomic nervous system (ANS)...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38179221/cross-species-conservation-in-the-regulation-of-parvalbumin-by-perineuronal-nets
#13
JOURNAL ARTICLE
Angela S Wang, Xinghaoyun Wan, Daria-Salina Storch, Vivian Y Li, Gilles Cornez, Jacques Balthazart, J Miguel Cisneros-Franco, Etienne de Villers-Sidani, Jon T Sakata
Parvalbumin (PV) neurons play an integral role in regulating neural dynamics and plasticity. Therefore, understanding the factors that regulate PV expression is important for revealing modulators of brain function. While the contribution of PV neurons to neural processes has been studied in mammals, relatively little is known about PV function in non-mammalian species, and discerning similarities in the regulation of PV across species can provide insight into evolutionary conservation in the role of PV neurons...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38144878/the-flow-of-axonal-information-among-hippocampal-sub-regions-2-patterned-stimulation-sharpens-routing-of-information-transmission
#14
JOURNAL ARTICLE
Samuel Brandon Lassers, Yash S Vakilna, William C Tang, Gregory J Brewer
The sub-regions of the hippocampal formation are essential for episodic learning and memory formation, yet the spike dynamics of each region contributing to this function are poorly understood, in part because of a lack of access to the inter-regional communicating axons. Here, we reconstructed hippocampal networks confined to four subcompartments in 2D cultures on a multi-electrode array that monitors individual communicating axons. In our novel device, somal, and axonal activity was measured simultaneously with the ability to ascertain the direction and speed of information transmission...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38107610/an-inhibitory-glycinergic-projection-from-the-cochlear-nucleus-to-the-lateral-superior-olive
#15
JOURNAL ARTICLE
Dennis J Weingarten, Eva Sebastian, Jennifer Winkelhoff, Nadine Patschull-Keiner, Alexander U Fischer, Simon L Wadle, Eckhard Friauf, Jan J Hirtz
Auditory brainstem neurons in the lateral superior olive (LSO) receive excitatory input from the ipsilateral cochlear nucleus (CN) and inhibitory transmission from the contralateral CN via the medial nucleus of the trapezoid body (MNTB). This circuit enables sound localization using interaural level differences. Early studies have observed an additional inhibitory input originating from the ipsilateral side. However, many of its details, such as its origin, remained elusive. Employing electrical and optical stimulation of afferents in acute mouse brainstem slices and anatomical tracing, we here describe a glycinergic projection to LSO principal neurons that originates from the ipsilateral CN...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38094239/state-dependent-modulation-of-positive-and-negative-affective-valences-by-a-parabrachial-nucleus-to-ventral-tegmental-area-pathway-in-mice
#16
JOURNAL ARTICLE
Takashi Nagashima, Kaori Mikami, Suguru Tohyama, Ayumu Konno, Hirokazu Hirai, Ayako M Watabe
Appropriately responding to various sensory signals in the environment is essential for animal survival. Accordingly, animal behaviors are closely related to external and internal states, which include the positive and negative emotional values of sensory signals triggered by environmental factors. While the lateral parabrachial nucleus (LPB) plays a key role in nociception and supports negative valences, it also transmits signals including positive valences. However, the downstream neuronal mechanisms of positive and negative valences have not been fully explored...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38033788/acetylcholine-facilitates-localized-synaptic-potentiation-and-location-specific-feature-binding
#17
JOURNAL ARTICLE
Yihao Yang, Victoria Booth, Michal Zochowski
Forebrain acetylcholine (ACh) signaling has been shown to drive attention and learning. Recent experimental evidence of spatially and temporally constrained cholinergic signaling has sparked interest to investigate how it facilitates stimulus-induced learning. We use biophysical excitatory-inhibitory (E-I) multi-module neural network models to show that external stimuli and ACh signaling can mediate spatially constrained synaptic potentiation patterns. The effects of ACh on neural excitability are simulated by varying the conductance of a muscarinic receptor-regulated hyperpolarizing slow K+ current (m-current)...
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38033787/editorial-marine-invertebrates-neurons-glia-and-neurotransmitters
#18
EDITORIAL
Tatiana N Olivares-Bañuelos, Arturo Ortega
No abstract text is available yet for this article.
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/38024809/editorial-gabaergic-circuits-in-health-and-disease
#19
EDITORIAL
Lisa Topolnik, Graziella Di Cristo, Elsa Rossignol
No abstract text is available yet for this article.
2023: Frontiers in Neural Circuits
https://read.qxmd.com/read/37941893/autogenous-cerebral-processes-an-invitation-to-look-at-the-brain-from-inside-out
#20
JOURNAL ARTICLE
Pedro E Maldonado, Miguel Concha-Miranda, Miriam Schwalm
While external stimulation can reliably trigger neuronal activity, cerebral processes can operate independently from the environment. In this study, we conceptualize autogenous cerebral processes (ACPs) as intrinsic operations of the brain that exist on multiple scales and can influence or shape stimulus responses, behavior, homeostasis, and the physiological state of an organism. We further propose that the field should consider exploring to what extent perception, arousal, behavior, or movement, as well as other cognitive functions previously investigated mainly regarding their stimulus-response dynamics, are ACP-driven...
2023: Frontiers in Neural Circuits
journal
journal
42047
1
2
Fetch more papers »
Fetching more papers... Fetching...
Remove bar
Read by QxMD icon Read
×

Save your favorite articles in one place with a free QxMD account.

×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"

We want to hear from doctors like you!

Take a second to answer a survey question.