Discrimination of features in natural scenes by a dragonfly neuron

Simple item page
dc.contributor.authorWiederman, S.
dc.contributor.authorO'Carroll, D.
dc.date.issued2011
dc.description.abstractFlying insects engage in spectacular high-speed pursuit of targets, requiring visual discrimination of moving objects against cluttered backgrounds. As a first step toward understanding the neural basis for this complex task, we used computational modeling of insect small target motion detector (STMD) neurons to predict responses to features within natural scenes and then compared this with responses recorded from an identified STMD neuron in the dragonfly brain (Hemicordulia tau). A surprising model prediction confirmed by our electrophysiological recordings is that even heavily cluttered scenes contain very few features that excite these neurons, due largely to their exquisite tuning for small features. We also show that very subtle manipulations of the image cause dramatic changes in the response of this neuron, because of the complex inhibitory and facilitatory interactions within the receptive field.
dc.description.statementofresponsibilitySteven D. Wiederman and David C. O'Carroll
dc.identifier.citationThe Journal of Neuroscience, 2011; 31(19):7141-7144
dc.identifier.doi10.1523/JNEUROSCI.0970-11.2011
dc.identifier.issn0270-6474
dc.identifier.issn1529-2401
dc.identifier.orcidWiederman, S. [0000-0002-0902-803X]
dc.identifier.orcidO'Carroll, D. [0000-0002-2352-4320]
dc.identifier.urihttp://hdl.handle.net/2440/64956
dc.language.isoen
dc.publisherSociety for Neuroscience
dc.rightsCopyright © 2011 the authors. Authors grant JNeurosci a license to publish their work and copyright remains with the author. Material published from 2010 to 2014 is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License (CC-BY-NC-SA).
dc.source.urihttps://doi.org/10.1523/jneurosci.0970-11.2011
dc.subjectVisual Pathways
dc.subjectNeurons
dc.subjectAnimals
dc.subjectPhotic Stimulation
dc.subjectVisual Perception
dc.subjectElectrophysiology
dc.subjectModels, Neurological
dc.subjectComputer Simulation
dc.subjectMale
dc.subjectInsecta
dc.subjectDiscrimination, Psychological
dc.titleDiscrimination of features in natural scenes by a dragonfly neuron
dc.typeJournal article
pubs.publication-statusPublished

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
hdl_64956.pdf
Size:
1.75 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download

Collections

Physiology publications