Retina-inspired controllable neuromorphic vision organic sensors with ultraweak ultraviolet detection DOI Creative Commons
Deyang Ji, Ting Jiang, Yiru Wang

и другие.

Research Square (Research Square), Год журнала: 2022, Номер unknown

Опубликована: Окт. 5, 2022

Abstract Sensing and recognizing invisible ultraviolet (UV) light is vital for exploiting advanced artificial visual perception system with tetrachromacy. However, due to the uncertainty of natural environment, UV signal very hard be detected perceived. Here, we report a controllable UV-ultrasensitive neuromorphic vision sensor (NeuVS) that uses organic phototransistors (OPTs) as working unit integrate sensing, memory processing functions. Benefiting from asymmetric molecular structure unique absorption active layer, fabricated NeuVS can detect illumination intensity 370 nm UV-light low 31 nw cm-2 exhibit one best optical figures merit in UV-sensitive sensors. Furthermore, array exbibits good image sensing memorization capability its ultrasensitive detection large density charge trapping states. In addition, wavelength-selective response multi-level properties are utilized construct an neural network (ANN) extraction identification information. The extract handwritten digit original color by filtering red, green blue (RGB) noise, significantly improve recognition accuracy 46% 90%.

Язык: Английский

Tetrachromatic vision-inspired neuromorphic sensors with ultraweak ultraviolet detection DOI Creative Commons
Ting Jiang, Yiru Wang,

Yingshuang Zheng

и другие.

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Апрель 21, 2023

Sensing and recognizing invisible ultraviolet (UV) light is vital for exploiting advanced artificial visual perception system. However, due to the uncertainty of natural environment, UV signal very hard be detected perceived. Here, inspired by tetrachromatic system, we report a controllable UV-ultrasensitive neuromorphic vision sensor (NeuVS) that uses organic phototransistors (OPTs) as working unit integrate sensing, memory processing functions. Benefiting from asymmetric molecular structure unique absorption active layer, fabricated NeuVS can detect 370 nm UV-light with illumination intensity low 31 nW cm-2, exhibiting one best optical figures merit in UV-sensitive sensors. Furthermore, array exbibits good image sensing memorization capability its ultrasensitive detection large density charge trapping states. In addition, wavelength-selective response multi-level properties are utilized construct an neural network extract identify information. The perform static dynamic recognition original color filtering red, green blue noise, significantly improve accuracy 46 90%.

Язык: Английский

Процитировано

88
Connectomics and the neural basis of behaviour DOI Creative Commons
Dana S. Galili, Gregory S.X.E. Jefferis, Marta Costa

и другие.

Current Opinion in Insect Science, Год журнала: 2022, Номер 54, С. 100968 - 100968

Опубликована: Сен. 13, 2022

Methods to acquire and process synaptic-resolution electron-microscopy datasets have progressed very rapidly, allowing production annotation of larger, more complete connectomes. More accurate neuronal matching techniques are enriching cell type data with gene expression, neuron activity, behaviour developmental information, providing ways test hypotheses circuit function. In a variety behaviours such as learned innate olfaction, navigation sexual behaviour, connectomics has already revealed interconnected modules hierarchical structure, recurrence integration sensory streams. Comparing individual connectomes determine which features robust variable is one key research area; new work in comparative across development, experience, sex species will establish strong links between connectivity brain

Язык: Английский

Процитировано

44
Fully UV Modulated Artificial Synapses with Integrated Sensing, Storage and Computation DOI

Shuyi Sun,

Tao Zhang,

Shuoqi Jin

и другие.

Advanced Functional Materials, Год журнала: 2024, Номер 34(36)

Опубликована: Апрель 9, 2024

Abstract Optical synaptic devices are considered a preferred substitute to electrical synapses for low‐energy, high‐efficiency neuromorphic computing (NC). However, most optical irreversible response severely restricts their application scenarios. In this study, fully photon‐modulated device constructed from Si‐doped beta‐gallium oxide ( β ‐Ga 2 O 3 )/ZnO heterojunction is demonstrated. The exhibits reversible conductance changes and mimics range of behaviors, which modulated by two different wavelengths (255 370 nm) UV light. Owing the device's plasticity, four types logic functions including “AND”, “OR”, “NOR” “NAND” implemented in stimulation. Furthermore, an artificial neural network (ANN) simulated based on excitatory inhibitory characteristics, programming scheme employed enhance network's performance, resulting high recognition rate 95.5% handwritten digits. synapse development strategy scheme, as presented work, advance utilization ANN.

Язык: Английский

Процитировано

14
Different spectral sensitivities of ON- and OFF-motion pathways enhance the detection of approaching color objects in Drosophila DOI Creative Commons
Kit D. Longden, Edward M. Rogers, Aljoscha Nern

и другие.

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Ноя. 24, 2023

Color and motion are used by many species to identify salient objects. They processed largely independently, but color contributes processing in humans, for example, enabling moving colored objects be detected when their luminance matches the background. Here, we demonstrate an unexpected, additional contribution of vision Drosophila. We show that behavioral ON-motion responses more sensitive UV than OFF-motion, cellular pathways connecting UV-sensitive R7 photoreceptors ON OFF-motion-sensitive T4 T5 cells, using neurogenetics calcium imaging. Remarkably, this circuitry enhances detection approaching discs, not green discs with same chromatic contrast, how could generalize systems ON- OFF-motion pathways. Our results provide a computational circuit basis favor saliently

Язык: Английский

Процитировано

17
A complete reconstruction of the early visual system of an adult insect DOI Creative Commons
Nicholas J Chua, Anastasia A. Makarova, Pat Gunn

и другие.

Current Biology, Год журнала: 2023, Номер 33(21), С. 4611 - 4623.e4

Опубликована: Сен. 28, 2023

For most model organisms in neuroscience, research into visual processing the brain is difficult because of a lack high-resolution maps that capture complex neuronal circuitry. The microinsect Megaphragma viggianii, its small size and non-trivial behavior, provides unique opportunity for tractable whole-organism connectomics. We image whole head using serial electron microscopy. reconstruct compound eye analyze optical properties ommatidia as well connectome first neuropil-the lamina. Compared with fruit fly honeybee, system highly simplified: it has 29 per 6 lamina neuron types. report features are both stereotypical among specialized to some. By identifying "barebones" circuits critical flying insects, our results will facilitate constructing computational models insects.

Язык: Английский

Процитировано

15
Looking across the gap: Understanding the evolution of eyes and vision among insects DOI Creative Commons
Maike Kittelmann, Alistair P. McGregor

BioEssays, Год журнала: 2024, Номер 46(5)

Опубликована: Апрель 9, 2024

Abstract The compound eyes of insects exhibit stunning variation in size, structure, and function, which has allowed these animals to use their vision adapt a huge range different environments lifestyles, evolve complex behaviors. Much our knowledge eye development been learned from Drosophila , while visual adaptations behaviors are often more striking better understood studies other insects. However, recent insects, including bees, beetles, butterflies, have begun address this gap by revealing the genetic developmental bases differences morphology key new aspects structure function. Furthermore, technical advances facilitated generation high‐resolution connectomic data insect species that enhances understanding information processing, impact changes processes on evolution behavior. Here, we review breakthroughs propose future integrated research function systems within among represents great opportunity understand remarkable diversification vision.

Язык: Английский

Процитировано

4
Effects of Climate Change on the Distribution of Papilio xuthus DOI Creative Commons
Quanwei Liu, Zhuoyuan Wang, Danping Xu

и другие.

Insects, Год журнала: 2025, Номер 16(2), С. 131 - 131

Опубликована: Янв. 29, 2025

The Papilio xuthus is a widely distributed species in the genus of family Papilionidae, possessing ecological, ornamental, and socio-economic service values. To determine ecological role P. assess its population distribution under future climate change scenarios, this study utilized MaxEnt model to predict geographic evaluate dynamics. results indicated that currently East Asia, with high suitability area 1827.83 × 103 km2, primarily China, Japan, North Korea, South Korea. Climate has significant impact on xuthus, areas decreasing future, particularly within where projected be as 46.46% SSP126 scenario by 2050s. centroid high-suitability expected shift northeastward. Key environmental variable analysis revealed Temperature Seasonality, Mean Wettest Quarter, Precipitation Month, Warmest Quarter are critical factors influencing selection suitable habitats xuthus. This assessed provided conservation recommendations, offering reference for control efforts.

Язык: Английский

Процитировано

0
Neuromorphic Visual Computing with ZnMgO QDs‐Based UV‐Responsive Optoelectronic Synaptic Devices for Image Encryption and Recognition DOI Open Access
Zilong Guo, Hao Kan, Jiaqi Zhang

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

Abstract Retina‐inspired optoelectronic neuromorphic devices integrating optical sensing and computation are the key components in realizing visual computing. In particular, UV‐responsive synaptic hold significant value for advanced vision systems, as they can expand human perception. Herein, we demonstrate a device based on ZnMgO quantum dots (QDs) designed in‐sensor computing applications. The demonstrates voltage‐driven short‐term long‐term plasticity, well multiple photoinduced functions. Based this device, an image‐blending encryption method has been designed, which effectively reduce risk of data leakage during transmission. Furthermore, reservoir (RC) system with image processing functions is constructed, integrates photonic layer (PRL) preprocessing multilayer perceptron (MLP) capable recognition. achieves 98.6% accuracy recognizing Fashion‐MNIST images maintains 83% under 60% random noise, showcasing its robustness. This work introduces novel approach developing equipped dual‐mode modulation both electrical signals, offering new perspectives solutions integrated applications systems.

Язык: Английский

Процитировано

0
On analogies in vertebrate and insect visual systems DOI
Ryosuke Tanaka, Rubén Portugues

Nature reviews. Neuroscience, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Язык: Английский

Процитировано

0
High diversity of arthropod colour vision: from genes to ecology DOI Creative Commons
Ayse Selen Yilmaz, Natalie Hempel de Ibarra, Almut Kelber

и другие.

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2022, Номер 377(1862)

Опубликована: Сен. 4, 2022

Colour vision allows animals to use the information contained in spectrum of light control important behavioural decisions such as selection habitats, food or mates. Among arthropods, largest animal phylum, we find completely colour-blind species well with up 40 different opsin genes more than 10 spectral types photoreceptors, a large diversity optical methods shaping sensitivity, eyes colour systems looking into dorsal and ventral hemisphere, which males females see world colours. The shows an equally astonishing diversity. Only neural mechanisms underlying this sensory ability seems surprisingly conserved-not only within but even between arthropods other well-studied chordates. papers special issue allow glimpse colourful arthropod vision, besides giving overview introduction highlights how much research is needed fill many missing pieces puzzle. This article part theme 'Understanding vision: molecular, physiological, neuronal studies arthropods'.

Язык: Английский

Процитировано

12