A computational model for angular velocity integration in a locust heading circuit DOI Creative Commons
Kathrin Pabst, Evripidis Gkanias, Barbara Webb

et al.

PLoS Computational Biology, Journal Year: 2024, Volume and Issue: 20(12), P. e1012155 - e1012155

Published: Dec. 20, 2024

Accurate navigation often requires the maintenance of a robust internal estimate heading relative to external surroundings. We present model for angular velocity integration in desert locust circuit, applying concepts from early theoretical work on circuits mammals novel biological context insects. In contrast similar models proposed fruit fly, this circuit uses single 360° direction representation and is updated by neuromodulatory inputs. Our computational was implemented using steady-state firing rate neurons with dynamical synapses. The connectivity constrained data, remaining degrees freedom were optimised machine learning approach yield physiologically plausible neuron activities. demonstrate that noise. signal can be effectively used as input an existing insect goal-directed steering adapted outbound locomotion steady resembles migration. study supports possibility computations orientation may differently neural hardware fly locust.

Language: Английский

Converting an allocentric goal into an egocentric steering signal DOI Creative Commons
Peter Mussells Pires, Lingwei Zhang,

Victoria Parache

et al.

Nature, Journal Year: 2024, Volume and Issue: 626(8000), P. 808 - 818

Published: Feb. 7, 2024

Neuronal signals that are relevant for spatial navigation have been described in many species

Language: Английский

Citations

45
Neural representation of goal direction in the monarch butterfly brain DOI Creative Commons
M. Jerome Beetz, Christian Kraus, Basil el Jundi

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Sept. 20, 2023

Neural processing of a desired moving direction requires the continuous comparison between current heading and goal direction. While neural basis underlying is well-studied, coding remains unclear in insects. Here, we used tetrode recordings tethered flying monarch butterflies to unravel how represented insect brain. recording, maintained robust directions relative virtual sun. By resetting their directions, found neurons whose spatial tuning was tightly linked directions. Importantly, unaffected when changed after compass perturbations, showing that these specifically encode Overall, here discovered invertebrate goal-direction share functional similarities cells reported mammals. Our results give insights into evolutionarily conserved principles goal-directed orientation animals.

Language: Английский

Citations

22
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
Variations on an ancient theme — the central complex across insects DOI Creative Commons
Stanley Heinze

Current Opinion in Behavioral Sciences, Journal Year: 2024, Volume and Issue: 57, P. 101390 - 101390

Published: April 9, 2024

The central complex (CX) is a highly conserved region of the insect brain, and its ubiquitous occurrence suggests that neural circuits are fundamental importance. While overall layout has not changed since evolution flight, substantial variations exist in internal organization all CX components. By changing details system repeating columns layers, these differences affect almost crystalline thus characteristic neuroarchitecture directly links structure with function. neuropil level changes suggest widespread cellular architecture circuits, data at deeper levels mostly limited to fruit fly Drosophila. Nevertheless, interspecies neuron-level have begun emerge. Whereas small compared astounding degree conservation, they reveal evolvable aspects circuitry, providing promising starting points for future research using comparative circuit-level analysis.

Language: Английский

Citations

6
Dynamic antennal positioning allows honeybee followers to decode the dance DOI Creative Commons
Anna Hadjitofi, Barbara Webb

Current Biology, Journal Year: 2024, Volume and Issue: 34(8), P. 1772 - 1779.e4

Published: March 12, 2024

The honeybee waggle dance has been widely studied as a communication system, yet we know little about how nestmates assimilate the information needed to navigate toward signaled resource. They are required detect dancer's orientation relative gravity and duration of phase translate this into flight vector with direction sun1Frisch K.V. Die polarisation des himmelslichtes als orientierender faktor bei den tänzen der bienen.Experientia. 1949; 5: 142-148Crossref PubMed Scopus (0) Google Scholar distance from hive.2Srinivasan M. Zhang S. Lehrer Collett T. Honeybee navigation en route goal: visual control odometry.J. Exp. Biol. 1996; 199: 237-244Crossref Scholar,3Esch H.E. Srinivasan M.V. Tautz J. dances communicate distances measured by optic flow.Nature. 2001; 411: 581-583Crossref (223) Moreover, they appear capable doing so varied, dynamically changing positions around dancer. Using high-speed, high-resolution video, have uncovered previously unremarked correlation between antennal position body axes dancer follower bees. Combined new inputs4Currier T.A. Matheson A.M. Nagel K.I. Encoding airflow set drosophila fan-shaped neurons.eLife. 2020; 9e61510Crossref (25) Scholar,5Matheson A.M.M. Lanz A.J. Medina Licata Currier Syed M.H. A neural circuit for wind-guided olfactory navigation.Nat. Commun. 2022; 13: 4613Crossref (22) spatial encoding in insect central complex,6Lu Behbahani A.H. Hamburg L. Westeinde E.A. Dawson P.M. Lyu C. Maimon G. Dickinson Druckmann Wilson R.I. Transforming representations movement body- world-centric space.Nature. 601: 98-104Crossref (43) Scholar,7Lyu Abbott L.F. Building an allocentric travelling signal via computation.Nature. 92-97Crossref (56) show first proposed underlie path integration could be adapted decoding acquiring that can followed This provides plausible account bee brain support interpretation its language.

Language: Английский

Citations

5
Evolution of neural circuitry and cognition DOI Creative Commons
Max S. Farnworth,

Stephen H. Montgomery

Biology Letters, Journal Year: 2024, Volume and Issue: 20(5)

Published: May 1, 2024

Neural circuits govern the interface between external environment, internal cues and outwardly directed behaviours. To process multiple environmental stimuli integrate these with state requires considerable neural computation. Expansion in network size, most readily represented by whole brain has historically been linked to behavioural complexity, or predominance of cognitive Yet, it is largely unclear which aspects circuit variation impact performance. A key question field evolutionary neurobiology therefore how evolve allow improved performance innovation. We discuss this first exploring volumetric changes areas reflect actual change. explore three major axes evolution-replication, restructuring reconditioning cells circuits-and could relate broader phenotypes variation. This discussion touches on relevant uses limitations volumetrics, while advocating a more circuit-based view cognition. then use framework showcase an example from insect brain, multi-sensory integration processing that shared mushroom bodies central complex. end identifying future trends research area, promise advance neurobiology.

Language: Английский

Citations

4
The neuroethology of ant navigation DOI Creative Commons
Thomas S Collett, Paul Graham, Stanley Heinze

et al.

Current Biology, Journal Year: 2025, Volume and Issue: 35(3), P. R110 - R124

Published: Feb. 1, 2025

Unlike any other group of animals, all ant species are social: individual ants share the food they gather with their nestmates and as a consequence must repeatedly leave nest to find then return home it. These back-and-forth foraging trips have been studied for about century much our growing understanding strategies underlying animal navigation has come from these studies. One important strategy that use keep track where on trip is 'path integration', in which continuously update 'home vector' gives estimated distance direction nest. As path integration accumulates errors, it cannot be relied bring precisely home: such precision accomplished by using views acquired before start foraging. Further learning scaffolded vectors or remembered vectors, guide route help useful experienced way. Many rely olfaction well vision guidance full details paths revealed how mix innate learnt multisensory cues. Wood ants, we focus this review, take an oscillating along pheromone trail sample odours, but acquire visual information only at peaks troughs oscillations. To provide working model neural basis multimodal navigational outline anatomy functioning major central brain areas circuits - complex, mushroom bodies lateral accessory lobes involved coordination behaviour olfactory patterns. Because brains not yet well-studied, work done notably, Drosophila, silkworm moths bees derive plausible circuitry can deliver ants' strategies.

Language: Английский

Citations

0
An insect-based bioelectronic sensing system combining flexible dual-sided microelectrode array and insect olfactory circuitry for human lung cancer detection. DOI
Xiang Liu, Simon Sanchez, Yan Gong

et al.

Biosensors and Bioelectronics, Journal Year: 2025, Volume and Issue: 281, P. 117356 - 117356

Published: March 8, 2025

Language: Английский

Citations

0
The influence of stimulus history on directional coding in the monarch butterfly brain DOI Creative Commons
M. Jerome Beetz, Basil el Jundi

Journal of Comparative Physiology A, Journal Year: 2023, Volume and Issue: 209(4), P. 663 - 677

Published: April 24, 2023

Abstract The central complex is a brain region in the insect that houses neural network specialized to encode directional information. Directional coding has traditionally been investigated with compass cues revolve full rotations and at constant angular velocities around insect’s head. However, these stimulus conditions do not fully simulate an sensory perception of during navigation. In nature, flight characterized by abrupt changes moving direction as well velocity. influence such varying cue dynamics on remains unclear. We performed long-term tetrode recordings from monarch butterflies study how neurons respond different directions. As derive information sun migration, we measured response virtual sun. was either presented spot appeared random positions or rotated butterfly By specifically manipulating velocity trajectory, dissociated coding. While substantially affected tuning directedness, trajectory influenced shape curve. Taken together, our results suggest flexibly adjusts its current ensuring precise even under highly demanding rapid maneuvers.

Language: Английский

Citations

10
Emergent spatial goals in an integrative model of the insect central complex DOI Creative Commons
Roman Goulard, Stanley Heinze, Barbara Webb

et al.

PLoS Computational Biology, Journal Year: 2023, Volume and Issue: 19(12), P. e1011480 - e1011480

Published: Dec. 18, 2023

The insect central complex appears to encode and process spatial information through vector manipulation. Here, we draw on recent insights into circuit structure fuse previous models of sensory-guided navigation, path integration memory. Specifically, propose that the allocentric encoding location provided by creates a spatially stable anchor for converging sensory signals is relevant in multiple behavioural contexts. reference frame given transforms goal direction demonstrate modelling it can enhance approach target noisy, cluttered environments or with temporally sparse stimuli. We further show same improve performance more navigational task route following. model suggests specific functional roles elements helps explain their high preservation across species.

Language: Английский

Citations

8