An insect-inspired model facilitating autonomous navigation by incorporating goal approaching and collision avoidance DOI Creative Commons
Xuelong Sun, Qinbing Fu, Jigen Peng

et al.

Neural Networks, Journal Year: 2023, Volume and Issue: 165, P. 106 - 118

Published: May 24, 2023

Being one of the most fundamental and crucial capacity robots animals, autonomous navigation that consists goal approaching collision avoidance enables completion various tasks while traversing different environments. In light impressive navigational abilities insects despite their tiny brains compared to mammals, idea seeking solutions from for two key problems navigation, i.e., avoidance, has fascinated researchers engineers many years. However, previous bio-inspired studies have focused on merely these at time. Insect-inspired algorithms synthetically incorporate both investigate interactions mechanisms in context sensory–motor closed-loop are lacking. To fill this gap, we propose an insect-inspired algorithm integrate mechanism as global working memory inspired by sweat bee's path integration (PI) mechanism, model local immediate cue built upon locust's lobula giant movement detector (LGMD) model. The presented is utilized drive agents complete task a manner within bounded static or dynamic environment. Simulation results demonstrate synthetic capable guiding agent challenging robust efficient way. This study takes first tentative step insect-like with functionalities (i.e., interrupt) into coordinated control system future research avenues could build upon.

Language: Английский

A connectome of the Drosophila central complex reveals network motifs suitable for flexible navigation and context-dependent action selection DOI Creative Commons
Brad K. Hulse, Hannah Haberkern, Romain Franconville

et al.

eLife, Journal Year: 2021, Volume and Issue: 10

Published: Oct. 26, 2021

Flexible behaviors over long timescales are thought to engage recurrent neural networks in deep brain regions, which experimentally challenging study. In insects, circuit dynamics a region called the central complex (CX) enable directed locomotion, sleep, and context- experience-dependent spatial navigation. We describe first complete electron microscopy-based connectome of

Language: Английский

Citations

301
A projectome of the bumblebee central complex DOI Creative Commons
Marcel E. Sayre, Rachel Templin, Johanna Chávez

et al.

eLife, Journal Year: 2021, Volume and Issue: 10

Published: Sept. 15, 2021

Insects have evolved diverse and remarkable strategies for navigating in various ecologies all over the world. Regardless of species, insects share presence a group morphologically conserved neuropils known collectively as central complex (CX). The CX is navigational center, involved sensory integration coordinated motor activity. Despite fact that our understanding behavior comes predominantly from ants bees, most what we know about underlying neural circuitry such work fruit flies. Here, aim to close this gap, by providing first comprehensive map major columnar neurons their projection patterns bee. We find numerous components circuit appear be highly between fly bee, but also highlight several key differences which are likely important functional ramifications.

Language: Английский

Citations

61
Flexible navigational computations in the Drosophila central complex DOI
Yvette E. Fisher

Current Opinion in Neurobiology, Journal Year: 2022, Volume and Issue: 73, P. 102514 - 102514

Published: Feb. 19, 2022

Language: Английский

Citations

54
Connectomics and the neural basis of behaviour DOI Creative Commons
Dana S. Galili, Gregory S.X.E. Jefferis, Marta Costa

et al.

Current Opinion in Insect Science, Journal Year: 2022, Volume and Issue: 54, P. 100968 - 100968

Published: Sept. 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

Language: Английский

Citations

43
Olfactory navigation in arthropods DOI Creative Commons

Theresa J. Steele,

Aaron J. Lanz, Katherine I. Nagel

et al.

Journal of Comparative Physiology A, Journal Year: 2023, Volume and Issue: 209(4), P. 467 - 488

Published: Jan. 20, 2023

Abstract Using odors to find food and mates is one of the most ancient highly conserved behaviors. Arthropods from flies moths crabs use broadly similar strategies navigate toward odor sources—such as integrating flow information with information, comparing concentration across sensors, over time. Because arthropods share many homologous brain structures—antennal lobes for processing olfactory mechanosensors flow, mushroom bodies (or hemi-ellipsoid bodies) associative learning, central complexes navigation, it likely that these closely related behaviors are mediated by neural circuits. However, differences in types they seek, physics dispersal, locomotion water, air, on substrates mean circuits must have adapted generate a wide diversity odor-seeking In this review, we discuss common specializations observed navigation behavior arthropods, review our current knowledge about subserving behavior. We propose comparative study arthropod nervous systems may provide insight into how set basic circuit structures has diversified different environments.

Language: Английский

Citations

24
The conserved RNA-binding protein Imp is required for the specification and function of olfactory navigation circuitry in Drosophila DOI Creative Commons
Aisha Hamid, Hannah Gattuso,

Aysu Nora Caglar

et al.

Current Biology, Journal Year: 2024, Volume and Issue: 34(3), P. 473 - 488.e6

Published: Jan. 4, 2024

Complex behaviors depend on the precise developmental specification of neuronal circuits, but relationship between genetic programs for neural development, circuit structure, and behavioral output is often unclear. The central complex (CX) a conserved sensory-motor integration center in insects, which governs many higher-order largely derives from small number type II stem cells (NSCs). Here, we show that Imp, IGF-II mRNA-binding protein expressed NSCs, plays role specifying essential components CX olfactory navigation circuitry. We following: (1) multiple circuitry arise NSCs. (2) Manipulating Imp expression NSCs alters morphology these elements, with most potent effects neurons targeting ventral layers fan-shaped body (FB). (3) regulates Tachykinin-expressing FB input neurons. (4) required establishing proper neuropil structures. (5) Loss abolishes upwind orientation to attractive odor while leaving locomotion odor-evoked regulation movement intact. Taken together, our findings establish temporally gene can regulate behavior by developmentally regulating provides first step toward dissection its roles behavior.

Language: Английский

Citations

15
Lineages to circuits: the developmental and evolutionary architecture of information channels into the central complex DOI Creative Commons

Pratyush Kandimalla,

Jaison J. Omoto, Elizabeth J. Hong

et al.

Journal of Comparative Physiology A, Journal Year: 2023, Volume and Issue: 209(4), P. 679 - 720

Published: March 17, 2023

The representation and integration of internal external cues is crucial for any organism to execute appropriate behaviors. In insects, a highly conserved region the brain, central complex (CX), functions in spatial information behavioral states, as well transformation this into desired navigational commands. How does relatively invariant structure enable incorporation from diversity anatomical, behavioral, ecological niches occupied by insects? Here, we examine input channels CX context their development evolution. Insect brains develop ~ 100 neuroblasts per hemisphere that divide systematically form "lineages" sister neurons, project target neuropils along anatomically characteristic tracts. Overlaying developmental tract onto recently generated Drosophila "hemibrain" connectome integrating with anatomical physiological recording neurons other species, observe neuropil lineage-specific innervation, connectivity, activity profiles channels. We posit proliferative potential lineage-based architecture modification neural networks across existing, novel, deprecated modalities species-specific manner, thus forming substrate evolution diversification insect circuits.

Language: Английский

Citations

21
Parallel vector memories in the brain of a bee as foundation for flexible navigation DOI Creative Commons
Rickesh N. Patel, Natalie S. Roberts, Julian Kempenaers

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(30)

Published: July 15, 2024

Insects rely on path integration (vector-based navigation) and landmark guidance to perform sophisticated navigational feats, rivaling those seen in mammals. Bees particular exhibit complex navigation behaviors including creating optimal routes novel shortcuts between locations, an ability historically indicative of the presence a cognitive map. A mammalian map has been widely accepted. However, insects, existence centralized is highly contentious. Using controlled laboratory assay that condenses foraging short distances walking bumblebees, we reveal vectors learned during can be transferred long-term memory, multiple such stored parallel, these recalled at familiar location used for homeward navigation. These findings demonstrate bees meet two fundamental requirements vector-based analog decentralized map: Home need memory from remembered locations. Thus, our data possess foundational elements By utilizing this relatively simple strategy spatial organization, insects may achieve high-level vertebrates with limited number neurons their brains, circumventing computational associated maps

Language: Английский

Citations

8
Neural circuits for goal-directed navigation across species DOI Creative Commons
Jayeeta Basu, Katherine I. Nagel

Trends in Neurosciences, Journal Year: 2024, Volume and Issue: 47(11), P. 904 - 917

Published: Oct. 10, 2024

Language: Английский

Citations

7
Bumblebees are resilient to neonicotinoid-fungicide combinations DOI Creative Commons

Antonia Schuhmann,

Janna Schulte,

Heike Feldhaar

et al.

Environment International, Journal Year: 2024, Volume and Issue: 186, P. 108608 - 108608

Published: March 27, 2024

Bumblebees are among the most important wild bees for pollination of crops and securing wildflower diversity. However, their abundance diversity have been on a steady decrease in last decades. One factors leading to decline is frequent use plant protection products (PPPs) agriculture, which spread into forests natural reserves. Mixtures different PPPs pose particular threat because possible synergistic effects. While there comparatively large body studies effects honeybees, we still lack data bees. We here investigated influence fungicide Cantus® Gold (boscalid/dimoxystrobin), neonicotinoid insecticide Mospilan® (acetamiprid) combination bumblebees. Cognitive performance foraging flights bumblebees were studied. They essential provisioning survival colony. introduce novel method testing four treatments simultaneously same colony, minimizing inter-colony differences. For this, successfully quartered colony moved queen daily between compartments. appeared astonishingly resilient tested or they developed mechanisms detoxification. Neither learning capacity nor flight activity inhibited by treatment with single combination.

Language: Английский

Citations

6