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Cockroach optomotor responses below single photon level

Honkanen, Anna LU ; Takalo, J.; Heimonen, K.; Vähäsöyrinki, M. and Weckström, M. (2014) In Journal of Experimental Biology 217. p.4262-4268
Abstract
Reliable vision in dim light depends on the efficient capture of photons. Moreover, visually guided behaviour requires reliable signals from the photoreceptors to generate appropriate motor reactions. Here, we show that at behavioural low-light threshold, cockroach photoreceptors respond to moving gratings with single-photon absorption events known as 'quantum bumps' at or below the rate of 0.1 s(-1). By performing behavioural experiments and intracellular recordings from photoreceptors under identical stimulus conditions, we demonstrate that continuous modulation of the photoreceptor membrane potential is not necessary to elicit visually guided behaviour. The results indicate that in cockroach motion detection, massive temporal and... (More)
Reliable vision in dim light depends on the efficient capture of photons. Moreover, visually guided behaviour requires reliable signals from the photoreceptors to generate appropriate motor reactions. Here, we show that at behavioural low-light threshold, cockroach photoreceptors respond to moving gratings with single-photon absorption events known as 'quantum bumps' at or below the rate of 0.1 s(-1). By performing behavioural experiments and intracellular recordings from photoreceptors under identical stimulus conditions, we demonstrate that continuous modulation of the photoreceptor membrane potential is not necessary to elicit visually guided behaviour. The results indicate that in cockroach motion detection, massive temporal and spatial pooling takes place throughout the eye under dim conditions, involving currently unknown neural processing algorithms. The extremely high night-vision capability of the cockroach visual system provides a roadmap for bio-mimetic imaging design. (Less)
Please use this url to cite or link to this publication:
author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Behaviour, Intracellular, Optomotor, Photoreceptor
in
Journal of Experimental Biology
volume
217
pages
4262 - 4268
publisher
The Company of Biologists Ltd
external identifiers
  • scopus:84925844804
ISSN
1477-9145
DOI
10.1242/jeb.112425
language
English
LU publication?
no
id
96533d30-5ef8-4689-a8c9-514cacb73317 (old id 5047056)
date added to LUP
2015-02-10 13:44:56
date last changed
2017-10-01 04:59:23
@article{96533d30-5ef8-4689-a8c9-514cacb73317,
  abstract     = {Reliable vision in dim light depends on the efficient capture of photons. Moreover, visually guided behaviour requires reliable signals from the photoreceptors to generate appropriate motor reactions. Here, we show that at behavioural low-light threshold, cockroach photoreceptors respond to moving gratings with single-photon absorption events known as 'quantum bumps' at or below the rate of 0.1 s(-1). By performing behavioural experiments and intracellular recordings from photoreceptors under identical stimulus conditions, we demonstrate that continuous modulation of the photoreceptor membrane potential is not necessary to elicit visually guided behaviour. The results indicate that in cockroach motion detection, massive temporal and spatial pooling takes place throughout the eye under dim conditions, involving currently unknown neural processing algorithms. The extremely high night-vision capability of the cockroach visual system provides a roadmap for bio-mimetic imaging design.},
  author       = {Honkanen, Anna and Takalo, J. and Heimonen, K. and Vähäsöyrinki, M. and Weckström, M.},
  issn         = {1477-9145},
  keyword      = {Behaviour,Intracellular,Optomotor,Photoreceptor},
  language     = {eng},
  pages        = {4262--4268},
  publisher    = {The Company of Biologists Ltd},
  series       = {Journal of Experimental Biology},
  title        = {Cockroach optomotor responses below single photon level},
  url          = {http://dx.doi.org/10.1242/jeb.112425},
  volume       = {217},
  year         = {2014},
}