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Ex vivo recordings reveal desert locust forelimb control is asymmetric

Knebel, Daniel; Rillich, Jan; Ayali, Amir; Pflüger, Hans Joachim and Rigosi, Elisa LU (2018) In Current Biology 28(22). p.1290-1291
Abstract

Lateralized behaviours are widespread among the animals, including insects with their miniature brains, perhaps being a way of maximising neural capacity (reviewed in [1,2]). However, evidence for functional asymmetries in the neural circuitry itself is scarce. Here, using bilateral simultaneous recordings from the ex vivo nervous system of desert locusts, we show that the neural control of their forelimbs is asymmetric. This asymmetry was retained throughout the experimental period and either with or without the suboesophageal ganglion (SOG). These findings provide evidence for hard-wired neural sidedness and contribute to our understanding of the lateralization observed in in-vivo motor behaviours. Knebel et al. show that, in the... (More)

Lateralized behaviours are widespread among the animals, including insects with their miniature brains, perhaps being a way of maximising neural capacity (reviewed in [1,2]). However, evidence for functional asymmetries in the neural circuitry itself is scarce. Here, using bilateral simultaneous recordings from the ex vivo nervous system of desert locusts, we show that the neural control of their forelimbs is asymmetric. This asymmetry was retained throughout the experimental period and either with or without the suboesophageal ganglion (SOG). These findings provide evidence for hard-wired neural sidedness and contribute to our understanding of the lateralization observed in in-vivo motor behaviours. Knebel et al. show that, in the desert locus motor output to the forelimbs is asymmetric in ex-vivo preparations of the ventral nerve cord. Such hard-wired asymmetry could underlie behavioural asymmetries in this species.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Current Biology
volume
28
issue
22
pages
1290 - 1291
publisher
Elsevier
external identifiers
  • scopus:85056763914
ISSN
0960-9822
DOI
10.1016/j.cub.2018.09.063
language
English
LU publication?
yes
id
eba853ad-b246-4f93-bc34-97a7d4d42b5c
date added to LUP
2018-11-27 08:50:29
date last changed
2019-02-20 11:37:58
@article{eba853ad-b246-4f93-bc34-97a7d4d42b5c,
  abstract     = {<p>Lateralized behaviours are widespread among the animals, including insects with their miniature brains, perhaps being a way of maximising neural capacity (reviewed in [1,2]). However, evidence for functional asymmetries in the neural circuitry itself is scarce. Here, using bilateral simultaneous recordings from the ex vivo nervous system of desert locusts, we show that the neural control of their forelimbs is asymmetric. This asymmetry was retained throughout the experimental period and either with or without the suboesophageal ganglion (SOG). These findings provide evidence for hard-wired neural sidedness and contribute to our understanding of the lateralization observed in in-vivo motor behaviours. Knebel et al. show that, in the desert locus motor output to the forelimbs is asymmetric in ex-vivo preparations of the ventral nerve cord. Such hard-wired asymmetry could underlie behavioural asymmetries in this species.</p>},
  author       = {Knebel, Daniel and Rillich, Jan and Ayali, Amir and Pflüger, Hans Joachim and Rigosi, Elisa},
  issn         = {0960-9822},
  language     = {eng},
  month        = {11},
  number       = {22},
  pages        = {1290--1291},
  publisher    = {Elsevier},
  series       = {Current Biology},
  title        = {Ex vivo recordings reveal desert locust forelimb control is asymmetric},
  url          = {http://dx.doi.org/10.1016/j.cub.2018.09.063},
  volume       = {28},
  year         = {2018},
}