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1-9 of 9
Keywords: Contrast sensitivity
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Journal Articles
Constance L. M. Blary, Olivier Duriez, Francesco Bonadonna, Mindaugas Mitkus, Samuel P. Caro, Aurélien Besnard, Simon Potier
Journal:
Journal of Experimental Biology
J Exp Biol (2024) 227 (3): jeb246342.
Published: 9 February 2024
... – the ability to discern luminance difference between two objects or an object and its background – has been shown to be lower in birds compared with other vertebrates. We conducted a comparative study to evaluate the achromatic contrast sensitivity of 32 bird species from 12 orders using the optocollic reflex...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2023) 226 (20): jeb245799.
Published: 31 October 2023
...Monika Perez; Zahra M. Bagheri; Courtney Brown; Yuri Ogawa; Julian C. Partridge; Jan M. Hemmi ABSTRACT Most animals rely on visual information for a variety of everyday tasks. The information available to a visual system depends in part on its spatial resolving power and contrast sensitivity...
Includes: Supplementary data
Journal Articles
In collection:
Neuroethology
Journal:
Journal of Experimental Biology
J Exp Biol (2022) 225 (16): jeb243927.
Published: 26 August 2022
... to be structurally complex, very little research on their visual function has been conducted. Here, we use isoluminant expanding visual stimuli to measure the spatial resolution and contrast sensitivity of a strombid, Conomurex luhuanus . Using these stimuli, we show that this species responds to objects as small...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2021) 224 (20): jeb243068.
Published: 25 October 2021
... the resolution of stripe patterns is mainly limited by the retinal sampling density (most likely the ganglion cell density; Collin and Pettigrew, 1989 ), the limiting factor for the detection of single objects is contrast sensitivity ( O'Carroll and Wiederman, 2014 ). Therefore, it is possible that an object...
Includes: Supplementary data
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2021) 224 (20): jeb242948.
Published: 15 October 2021
... predominantly by the compound eyes. In this study, using pattern electroretinography (pERG), we investigated the contribution of the compound eyes to ocellar spatial vision in the diurnal Australian bull ant Myrmecia tarsata by measuring the contrast sensitivity and spatial resolving power of the ocellar second...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2018) 221 (20): jeb184267.
Published: 17 October 2018
...Aravin Chakravarthi; Santosh Rajus; Almut Kelber; Marie Dacke; Emily Baird ABSTRACT Visually guided behaviour is constrained by the capacity of the visual system to resolve detail. This, in turn, is limited by the spatial resolution and contrast sensitivity of the underlying visual system. Because...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2017) 220 (23): 4364–4369.
Published: 1 December 2017
... target size a photoreceptor can robustly encode is sufficient to explain the detection limit of higher-order, target-detecting neurons or observed behavioural pursuits. Target detection Vision Contrast sensitivity Retina Signal-to-noise ratio Feature detection Visual systems optimized...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2016) 219 (24): 3971–3980.
Published: 15 December 2016
... or contrast sensitivity. This study estimates contrast sensitivity and spatial resolution of two species of benthic sharks, the Port Jackson shark, Heterodontus portusjacksoni , and the brown-banded bamboo shark, Chiloscyllium punctatum , by recording eye movements in response to optokinetic stimuli. Both...
Journal Articles
Journal:
Journal of Experimental Biology
J Exp Biol (2001) 204 (14): 2383–2390.
Published: 15 July 2001
... to an intensity modulation of 0.63 [(4.5−1)/(4.5+1)], which is within the linear range of the LMC. In keeping with the notion that the LMC response to a rotating polarizer resembles the contrast sensitivity to a time-varying intensity, it was observed that the potential oscillation elicited by a rotating...