Active antennal movement in cockroaches - towards understanding multimodal exploration

Alejandro Pequeno-Zurro, Jahn Nitschke, Paul Szyszka, Danish Shaikh, Einat Couzin-Fuchs

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

Resumé

The long and highly mobile cockroach antennae are multifunctional sensory appendages incorporating two of the most fundamental senses – olfaction and touch. Previous laboratory experiments with cockroaches in unisensory tasks have demonstrated the animal’s ability to perform antenna-dependent tasks such as chemotaxis in presence of relevant odours, positive thigmotaxis (wall-following) when the antennae come in contact with a wall, ability to negotiate obstacles and to achieve tactile orientation. However, studies of multisensory capabilities mediated by the antennae are lacking. Here we employ an integrated experimental and computational approach to investigate how active antennal movement affects sensory acquisition in a multimodal environment. We characterize the relationship between antennal searching movement and the spatial and temporal properties of encountered odour concentrations, which will serve as the basis for a future extension to study olfactory-tactile integration.
When presented with a behaviourally relevant odour antennae exhibited systematic movements, and there appears to be a dynamic modulation of coupling between the left and right antenna. In order to gain insight into the coordination of antennal movements we employed an adaptive Hopf coupled oscillator model, with parameters fitted to kinematic data derived from high-speed recordings of antennal movement. In addition we mapped the structure of the odour plume that the antennae encountered and used the odour concentration map as driver signals for the model. A transfer function between the odour signal and the inter-oscillator coupling strength will subsequently be defined. We will use the model to predict how the neural coupling between the two antennae is modulated by the encountered odour concentration, and consequently the relationship between odour sensing and antennal movements. In vivo recordings from the animal’s olfactory neurons will allow us to determine how neural activity in response to a relevant odour varies with antennal movements, and will allow us to gain insight into the mechanisms that underlie active sensing in insects.
OriginalsprogEngelsk
Publikationsdato2017
Antal sider1
StatusUdgivet - 2017
Begivenhed PIRE Workshop/Summer School 2017: Hierarchical Multisensory Integration: Theory and Experiments - Pals, Girona, Spanien
Varighed: 17. jun. 201720. jun. 2017
http://eventum.upf.edu/event_detail/8963/detail/pire-workshop_summer-school-2017.html)

Workshop

Workshop PIRE Workshop/Summer School 2017: Hierarchical Multisensory Integration: Theory and Experiments
LokationPals
LandSpanien
ByGirona
Periode17/06/201720/06/2017
Internetadresse

Fingeraftryk

Odorants
Smell
Neurons

Citer dette

Pequeno-Zurro, A., Nitschke, J., Szyszka, P., Shaikh, D., & Couzin-Fuchs, E. (2017). Active antennal movement in cockroaches - towards understanding multimodal exploration. Poster session præsenteret på PIRE Workshop/Summer School 2017: Hierarchical Multisensory Integration: Theory and Experiments, Girona, Spanien.
Pequeno-Zurro, Alejandro ; Nitschke, Jahn ; Szyszka, Paul ; Shaikh, Danish ; Couzin-Fuchs, Einat. / Active antennal movement in cockroaches - towards understanding multimodal exploration. Poster session præsenteret på PIRE Workshop/Summer School 2017: Hierarchical Multisensory Integration: Theory and Experiments, Girona, Spanien.1 s.
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abstract = "The long and highly mobile cockroach antennae are multifunctional sensory appendages incorporating two of the most fundamental senses – olfaction and touch. Previous laboratory experiments with cockroaches in unisensory tasks have demonstrated the animal’s ability to perform antenna-dependent tasks such as chemotaxis in presence of relevant odours, positive thigmotaxis (wall-following) when the antennae come in contact with a wall, ability to negotiate obstacles and to achieve tactile orientation. However, studies of multisensory capabilities mediated by the antennae are lacking. Here we employ an integrated experimental and computational approach to investigate how active antennal movement affects sensory acquisition in a multimodal environment. We characterize the relationship between antennal searching movement and the spatial and temporal properties of encountered odour concentrations, which will serve as the basis for a future extension to study olfactory-tactile integration.When presented with a behaviourally relevant odour antennae exhibited systematic movements, and there appears to be a dynamic modulation of coupling between the left and right antenna. In order to gain insight into the coordination of antennal movements we employed an adaptive Hopf coupled oscillator model, with parameters fitted to kinematic data derived from high-speed recordings of antennal movement. In addition we mapped the structure of the odour plume that the antennae encountered and used the odour concentration map as driver signals for the model. A transfer function between the odour signal and the inter-oscillator coupling strength will subsequently be defined. We will use the model to predict how the neural coupling between the two antennae is modulated by the encountered odour concentration, and consequently the relationship between odour sensing and antennal movements. In vivo recordings from the animal’s olfactory neurons will allow us to determine how neural activity in response to a relevant odour varies with antennal movements, and will allow us to gain insight into the mechanisms that underlie active sensing in insects.",
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Pequeno-Zurro, A, Nitschke, J, Szyszka, P, Shaikh, D & Couzin-Fuchs, E 2017, 'Active antennal movement in cockroaches - towards understanding multimodal exploration' PIRE Workshop/Summer School 2017: Hierarchical Multisensory Integration: Theory and Experiments, Girona, Spanien, 17/06/2017 - 20/06/2017, .

Active antennal movement in cockroaches - towards understanding multimodal exploration. / Pequeno-Zurro, Alejandro; Nitschke, Jahn; Szyszka, Paul; Shaikh, Danish; Couzin-Fuchs, Einat.

2017. Poster session præsenteret på PIRE Workshop/Summer School 2017: Hierarchical Multisensory Integration: Theory and Experiments, Girona, Spanien.

Publikation: Konferencebidrag uden forlag/tidsskriftPosterForskningpeer review

TY - CONF

T1 - Active antennal movement in cockroaches - towards understanding multimodal exploration

AU - Pequeno-Zurro, Alejandro

AU - Nitschke, Jahn

AU - Szyszka, Paul

AU - Shaikh, Danish

AU - Couzin-Fuchs, Einat

PY - 2017

Y1 - 2017

N2 - The long and highly mobile cockroach antennae are multifunctional sensory appendages incorporating two of the most fundamental senses – olfaction and touch. Previous laboratory experiments with cockroaches in unisensory tasks have demonstrated the animal’s ability to perform antenna-dependent tasks such as chemotaxis in presence of relevant odours, positive thigmotaxis (wall-following) when the antennae come in contact with a wall, ability to negotiate obstacles and to achieve tactile orientation. However, studies of multisensory capabilities mediated by the antennae are lacking. Here we employ an integrated experimental and computational approach to investigate how active antennal movement affects sensory acquisition in a multimodal environment. We characterize the relationship between antennal searching movement and the spatial and temporal properties of encountered odour concentrations, which will serve as the basis for a future extension to study olfactory-tactile integration.When presented with a behaviourally relevant odour antennae exhibited systematic movements, and there appears to be a dynamic modulation of coupling between the left and right antenna. In order to gain insight into the coordination of antennal movements we employed an adaptive Hopf coupled oscillator model, with parameters fitted to kinematic data derived from high-speed recordings of antennal movement. In addition we mapped the structure of the odour plume that the antennae encountered and used the odour concentration map as driver signals for the model. A transfer function between the odour signal and the inter-oscillator coupling strength will subsequently be defined. We will use the model to predict how the neural coupling between the two antennae is modulated by the encountered odour concentration, and consequently the relationship between odour sensing and antennal movements. In vivo recordings from the animal’s olfactory neurons will allow us to determine how neural activity in response to a relevant odour varies with antennal movements, and will allow us to gain insight into the mechanisms that underlie active sensing in insects.

AB - The long and highly mobile cockroach antennae are multifunctional sensory appendages incorporating two of the most fundamental senses – olfaction and touch. Previous laboratory experiments with cockroaches in unisensory tasks have demonstrated the animal’s ability to perform antenna-dependent tasks such as chemotaxis in presence of relevant odours, positive thigmotaxis (wall-following) when the antennae come in contact with a wall, ability to negotiate obstacles and to achieve tactile orientation. However, studies of multisensory capabilities mediated by the antennae are lacking. Here we employ an integrated experimental and computational approach to investigate how active antennal movement affects sensory acquisition in a multimodal environment. We characterize the relationship between antennal searching movement and the spatial and temporal properties of encountered odour concentrations, which will serve as the basis for a future extension to study olfactory-tactile integration.When presented with a behaviourally relevant odour antennae exhibited systematic movements, and there appears to be a dynamic modulation of coupling between the left and right antenna. In order to gain insight into the coordination of antennal movements we employed an adaptive Hopf coupled oscillator model, with parameters fitted to kinematic data derived from high-speed recordings of antennal movement. In addition we mapped the structure of the odour plume that the antennae encountered and used the odour concentration map as driver signals for the model. A transfer function between the odour signal and the inter-oscillator coupling strength will subsequently be defined. We will use the model to predict how the neural coupling between the two antennae is modulated by the encountered odour concentration, and consequently the relationship between odour sensing and antennal movements. In vivo recordings from the animal’s olfactory neurons will allow us to determine how neural activity in response to a relevant odour varies with antennal movements, and will allow us to gain insight into the mechanisms that underlie active sensing in insects.

M3 - Poster

ER -

Pequeno-Zurro A, Nitschke J, Szyszka P, Shaikh D, Couzin-Fuchs E. Active antennal movement in cockroaches - towards understanding multimodal exploration. 2017. Poster session præsenteret på PIRE Workshop/Summer School 2017: Hierarchical Multisensory Integration: Theory and Experiments, Girona, Spanien.