Hawkmoth lamina monopolar cells act as dynamic spatial filters to optimize vision at different light levels
Stöckl, Anna Lisa LU ; O'Carroll, David Charles LU and Warrant, Eric James LU
(2020)
In Science Advances
6(16).
- Abstract
How neural form and function are connected is a central question of neuroscience. One prominent functional hypothesis, from the beginnings of neuroanatomical study, states that laterally extending dendrites of insect lamina monopolar cells (LMCs) spatially integrate visual information. We provide the first direct functional evidence for this hypothesis using intracellular recordings from type II LMCs in the hawkmoth Macroglossum stellatarum. We show that their spatial receptive fields broaden with decreasing light intensities, thus trading spatial resolution for higher sensitivity. These dynamic changes in LMC spatial properties can be explained by the density and lateral extent of their dendritic arborizations. Our results thus provide... (More)
How neural form and function are connected is a central question of neuroscience. One prominent functional hypothesis, from the beginnings of neuroanatomical study, states that laterally extending dendrites of insect lamina monopolar cells (LMCs) spatially integrate visual information. We provide the first direct functional evidence for this hypothesis using intracellular recordings from type II LMCs in the hawkmoth Macroglossum stellatarum. We show that their spatial receptive fields broaden with decreasing light intensities, thus trading spatial resolution for higher sensitivity. These dynamic changes in LMC spatial properties can be explained by the density and lateral extent of their dendritic arborizations. Our results thus provide the first physiological evidence for a century-old hypothesis, directly correlating physiological response properties with distinctive dendritic morphology.
(Less)
- author
- Stöckl, Anna Lisa
LU
; O'Carroll, David Charles
LU
and Warrant, Eric James
LU
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science Advances
- volume
- 6
- issue
- 16
- article number
- eaaz8645
- publisher
- American Association for the Advancement of Science (AAAS)
- external identifiers
-
- pmid:32494622
- scopus:85083624826
- ISSN
- 2375-2548
- DOI
- 10.1126/sciadv.aaz8645
- language
- English
- LU publication?
- yes
- id
- 6a1e79b2-3bb4-44ec-a4cc-4de345f36008
- date added to LUP
- 2020-05-20 14:32:32
- date last changed
- 2024-05-15 11:14:17
@article{6a1e79b2-3bb4-44ec-a4cc-4de345f36008,
abstract = {{<p>How neural form and function are connected is a central question of neuroscience. One prominent functional hypothesis, from the beginnings of neuroanatomical study, states that laterally extending dendrites of insect lamina monopolar cells (LMCs) spatially integrate visual information. We provide the first direct functional evidence for this hypothesis using intracellular recordings from type II LMCs in the hawkmoth Macroglossum stellatarum. We show that their spatial receptive fields broaden with decreasing light intensities, thus trading spatial resolution for higher sensitivity. These dynamic changes in LMC spatial properties can be explained by the density and lateral extent of their dendritic arborizations. Our results thus provide the first physiological evidence for a century-old hypothesis, directly correlating physiological response properties with distinctive dendritic morphology.</p>}},
author = {{Stöckl, Anna Lisa and O'Carroll, David Charles and Warrant, Eric James}},
issn = {{2375-2548}},
language = {{eng}},
number = {{16}},
publisher = {{American Association for the Advancement of Science (AAAS)}},
series = {{Science Advances}},
title = {{Hawkmoth lamina monopolar cells act as dynamic spatial filters to optimize vision at different light levels}},
url = {{http://dx.doi.org/10.1126/sciadv.aaz8645}},
doi = {{10.1126/sciadv.aaz8645}},
volume = {{6}},
year = {{2020}},
}