Results 21 to 30 of about 480,167 (281)

Astrocyte GluN2C NMDA receptors control basal synaptic strengths of hippocampal CA1 pyramidal neurons in the stratum radiatum

eLife, 2021
Experience-dependent plasticity is a key feature of brain synapses for which neuronal N-Methyl-D-Aspartate receptors (NMDARs) play a major role, from developmental circuit refinement to learning and memory.
Peter H Chipman, Chi Chung Alan Fung, Alejandra Pazo Fernandez, Abhilash Sawant, Angelo Tedoldi, Atsushi Kawai, Sunita Ghimire Gautam, Mizuki Kurosawa, Manabu Abe, Kenji Sakimura, Tomoki Fukai, Yukiko Goda   +11 more
doaj   +1 more source

Neural coding of numerousness

Biosystems, 2023
Perception of numerousness, i.e. number of items in a set, is an important cognitive ability, which is present in several animal taxa. In spite of obvious differences in neuroanatomy, insects, fishes, reptiles, birds, and mammals all possess a "number sense". Furthermore, information regarding numbers can belong to different sensory modalities: animals
Kobylkov, Dmitry, Zanon, Mirko, Perrino, Matilde, Vallortigara, Giorgio   +3 more
openaire   +2 more sources

Zebrafish capable of generating future state prediction error show improved active avoidance behavior in virtual reality

Nature Communications, 2021
Using a closed-loop virtual reality system for fish, the authors show that zebrafish are capable of assigning rules to the scenery they see, and of generating a state prediction error by comparing reality with a prediction derived from an internal model.
Makio Torigoe, Tanvir Islam, Hisaya Kakinuma, Chi Chung Alan Fung, Takuya Isomura, Hideaki Shimazaki, Tazu Aoki, Tomoki Fukai, Hitoshi Okamoto   +8 more
doaj   +1 more source

Robust and efficient representations of dynamic stimuli in hierarchical neural networks via temporal smoothing

Frontiers in Computational Neuroscience, 2023
IntroductionEfficient coding that minimizes informational redundancy of neural representations is a widely accepted neural coding principle. Despite the benefit, maximizing efficiency in neural coding can make neural representation vulnerable to random ...
Duho Sihn, Oh-Sang Kwon, Sung-Phil Kim
doaj   +1 more source

Relating Neural Dynamics to Neural Coding [PDF]

Physical Review Letters, 2007
We demonstrate that two key theoretical objects used widely in computational neuroscience, the phase-resetting curve (PRC) from dynamics and the spike triggered average (STA) from statistical analysis, are closely related when neurons fire in a nearly regular manner and the stimulus is sufficiently small.
G Bard, Ermentrout, Roberto F, Galán, Nathaniel N, Urban   +2 more
openaire   +2 more sources

Identification and analysis of odorant receptors expressed in the two main olfactory organs, antennae and palps, of Schistocerca americana

Scientific Reports, 2022
Locusts depend upon their sense of smell and provide useful models for understanding olfaction. Extending this understanding requires knowledge of the molecular and structural organization of the olfactory system.
Alejandra Boronat-Garcia, James Iben, Eunice Dominguez-Martin, Mark Stopfer   +3 more
doaj   +1 more source

Phase information is conserved in sparse, synchronous population-rate-codes via phase-to-rate recoding

Nature Communications, 2023
Neural computation is often traced in terms of either rate- or phase-codes. However, most circuit operations will simultaneously affect information across both coding schemes. It remains unclear how phase and rate coded information is transmitted, in the
Daniel Müller-Komorowska, Baris Kuru, Heinz Beck, Oliver Braganza   +3 more
doaj   +1 more source

Extended field-of-view ultrathin microendoscopes for high-resolution two-photon imaging with minimal invasiveness

eLife, 2020
Imaging neuronal activity with high and homogeneous spatial resolution across the field-of-view (FOV) and limited invasiveness in deep brain regions is fundamental for the progress of neuroscience, yet is a major technical challenge.
Andrea Antonini, Andrea Sattin, Monica Moroni, Serena Bovetti, Claudio Moretti, Francesca Succol, Angelo Forli, Dania Vecchia, Vijayakumar P Rajamanickam, Andrea Bertoncini, Stefano Panzeri, Carlo Liberale, Tommaso Fellin   +12 more
doaj   +1 more source

Hippocampal Neurogenesis Reduces the Dimensionality of Sparsely Coded Representations to Enhance Memory Encoding

Frontiers in Computational Neuroscience, 2019
Adult neurogenesis in the hippocampal dentate gyrus (DG) of mammals is known to contribute to memory encoding in many tasks. The DG also exhibits exceptionally sparse activity compared to other systems, however, whether sparseness and neurogenesis ...
Anthony J. DeCostanzo, Anthony J. DeCostanzo, Chi Chung Alan Fung, Tomoki Fukai   +3 more
doaj   +1 more source

Classification of Whisker Deflections From Evoked Responses in the Somatosensory Barrel Cortex With Spiking Neural Networks

Frontiers in Neuroscience, 2022
Spike-based neuromorphic hardware has great potential for low-energy brain-machine interfaces, leading to a novel paradigm for neuroprosthetics where spiking neurons in silicon read out and control activity of brain circuits.
Horst Petschenig, Marta Bisio, Marta Maschietto, Alessandro Leparulo, Robert Legenstein, Stefano Vassanelli   +5 more
doaj   +1 more source