Role of a looming-sensitive neuron in triggering the defense behavior of the praying mantis Tenodera aridifolia

Keiichiro Sato, Yoshifumi Yamawaki

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In responses to looming objects, the praying mantis shows a defense behavior, which consists of retracting forelegs under the prothorax. The role of a loomingsensitive neuron in triggering this behavior was investigated by simultaneously recording the activity and behavioral responses of the neuron. The mantis initiated the defense behavior earlier in response to larger and slower looming stimuli. The time remaining to collision at defense initiation was linearly correlated with the ratio of the half-size of an approaching object to its speed (l/|v|), suggesting that the defense behavior occurred a fixed delay after the stimuli had reached a fixed angular threshold. Furthermore, the results suggested that high-frequency spikes of the looming-sensitive neuron were involved in triggering the defense behavior: the distribution of maximum firing rate for trials with defense was shifted to larger rates compared with trials without defense; the firing rate of the neuron exceeded 150 Hz ~100 ms before the defense initiation regardless of stimulus parameters; when a looming stimulus ceased approach prematurely, high-frequency spikes were removed, and the occurrence of defense was reduced.

Original languageEnglish
Pages (from-to)671-682
Number of pages12
JournalJournal of Neurophysiology
Volume112
Issue number3
DOIs
Publication statusPublished - Aug 1 2014

Fingerprint

Mantodea
Neurons

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Physiology

Cite this

Role of a looming-sensitive neuron in triggering the defense behavior of the praying mantis Tenodera aridifolia. / Sato, Keiichiro; Yamawaki, Yoshifumi.

In: Journal of Neurophysiology, Vol. 112, No. 3, 01.08.2014, p. 671-682.

Research output: Contribution to journalArticle

@article{cf20bbe75cb241a68b7f9dbc931202fc,
title = "Role of a looming-sensitive neuron in triggering the defense behavior of the praying mantis Tenodera aridifolia",
abstract = "In responses to looming objects, the praying mantis shows a defense behavior, which consists of retracting forelegs under the prothorax. The role of a loomingsensitive neuron in triggering this behavior was investigated by simultaneously recording the activity and behavioral responses of the neuron. The mantis initiated the defense behavior earlier in response to larger and slower looming stimuli. The time remaining to collision at defense initiation was linearly correlated with the ratio of the half-size of an approaching object to its speed (l/|v|), suggesting that the defense behavior occurred a fixed delay after the stimuli had reached a fixed angular threshold. Furthermore, the results suggested that high-frequency spikes of the looming-sensitive neuron were involved in triggering the defense behavior: the distribution of maximum firing rate for trials with defense was shifted to larger rates compared with trials without defense; the firing rate of the neuron exceeded 150 Hz ~100 ms before the defense initiation regardless of stimulus parameters; when a looming stimulus ceased approach prematurely, high-frequency spikes were removed, and the occurrence of defense was reduced.",
author = "Keiichiro Sato and Yoshifumi Yamawaki",
year = "2014",
month = "8",
day = "1",
doi = "10.1152/jn.00049.2014",
language = "English",
volume = "112",
pages = "671--682",
journal = "Journal of Neurophysiology",
issn = "0022-3077",
publisher = "American Physiological Society",
number = "3",

}

TY - JOUR

T1 - Role of a looming-sensitive neuron in triggering the defense behavior of the praying mantis Tenodera aridifolia

AU - Sato, Keiichiro

AU - Yamawaki, Yoshifumi

PY - 2014/8/1

Y1 - 2014/8/1

N2 - In responses to looming objects, the praying mantis shows a defense behavior, which consists of retracting forelegs under the prothorax. The role of a loomingsensitive neuron in triggering this behavior was investigated by simultaneously recording the activity and behavioral responses of the neuron. The mantis initiated the defense behavior earlier in response to larger and slower looming stimuli. The time remaining to collision at defense initiation was linearly correlated with the ratio of the half-size of an approaching object to its speed (l/|v|), suggesting that the defense behavior occurred a fixed delay after the stimuli had reached a fixed angular threshold. Furthermore, the results suggested that high-frequency spikes of the looming-sensitive neuron were involved in triggering the defense behavior: the distribution of maximum firing rate for trials with defense was shifted to larger rates compared with trials without defense; the firing rate of the neuron exceeded 150 Hz ~100 ms before the defense initiation regardless of stimulus parameters; when a looming stimulus ceased approach prematurely, high-frequency spikes were removed, and the occurrence of defense was reduced.

AB - In responses to looming objects, the praying mantis shows a defense behavior, which consists of retracting forelegs under the prothorax. The role of a loomingsensitive neuron in triggering this behavior was investigated by simultaneously recording the activity and behavioral responses of the neuron. The mantis initiated the defense behavior earlier in response to larger and slower looming stimuli. The time remaining to collision at defense initiation was linearly correlated with the ratio of the half-size of an approaching object to its speed (l/|v|), suggesting that the defense behavior occurred a fixed delay after the stimuli had reached a fixed angular threshold. Furthermore, the results suggested that high-frequency spikes of the looming-sensitive neuron were involved in triggering the defense behavior: the distribution of maximum firing rate for trials with defense was shifted to larger rates compared with trials without defense; the firing rate of the neuron exceeded 150 Hz ~100 ms before the defense initiation regardless of stimulus parameters; when a looming stimulus ceased approach prematurely, high-frequency spikes were removed, and the occurrence of defense was reduced.

UR - http://www.scopus.com/inward/record.url?scp=84905266401&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84905266401&partnerID=8YFLogxK

U2 - 10.1152/jn.00049.2014

DO - 10.1152/jn.00049.2014

M3 - Article

C2 - 24848471

AN - SCOPUS:84905266401

VL - 112

SP - 671

EP - 682

JO - Journal of Neurophysiology

JF - Journal of Neurophysiology

SN - 0022-3077

IS - 3

ER -