Nature Neuroscience6, 579 - 586 (2003)
Published online: 28 April 2003; | doi:10.1038/nn1054
Salience modulates 20−30 Hz brain activity in Drosophila
Bruno van Swinderen
& Ralph J Greenspan
The Neurosciences Institute, 10640 John Jay Hopkins Drive, San Diego, California 92121, USA.
Correspondence should be addressed to Ralph J Greenspan greenspan@nsi.edu
Fruit flies selectively orient toward the visual stimuli that are most salient in their environment. We recorded local field potentials (LFPs) from the brains of Drosophila melanogaster as they responded to the presentation of visual stimuli. Coupling of salience effects (odor, heat or novelty) to these stimuli modulated LFPs in the 20−30 Hz range by evoking a transient, selective increase. We demonstrated the association of these responses with behavioral tracking and initiated a genetic approach to investigating neural correlates of perception.
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