2015
DOI: 10.1073/pnas.1514415112
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Functional divisions for visual processing in the central brain of flying Drosophila

Abstract: Although anatomy is often the first step in assigning functions to neural structures, it is not always clear whether architecturally distinct regions of the brain correspond to operational units. Whereas neuroarchitecture remains relatively static, functional connectivity may change almost instantaneously according to behavioral context. We imaged panneuronal responses to visual stimuli in a highly conserved central brain region in the fruit fly, Drosophila, during flight. In one substructure, the fan-shaped b… Show more

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Cited by 123 publications
(143 citation statements)
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References 44 publications
(53 reference statements)
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“…Considering that Drosophila also exhibits physiological and behavioral correlates with POL sensitivity [4648], we posit that the fly AVP is the neural circuit for POL information transmission to the CX. However, a recent report demonstrated that when flies are presented with a rotating field of polarized UV light in conjunction with pan-neuronal calcium imaging, robust calcium signals in any CX neuropils, including the bulb, were not observed [49]. In contrast, and in agreement with our findings, bright objects elicited strong responses in the bulb and other regions of the CX.…”
Section: Discussionsupporting
confidence: 90%
See 1 more Smart Citation
“…Considering that Drosophila also exhibits physiological and behavioral correlates with POL sensitivity [4648], we posit that the fly AVP is the neural circuit for POL information transmission to the CX. However, a recent report demonstrated that when flies are presented with a rotating field of polarized UV light in conjunction with pan-neuronal calcium imaging, robust calcium signals in any CX neuropils, including the bulb, were not observed [49]. In contrast, and in agreement with our findings, bright objects elicited strong responses in the bulb and other regions of the CX.…”
Section: Discussionsupporting
confidence: 90%
“…In the Drosophila AVP, the spatial position of luminance cues emanating from a bright source, such as a celestial body or an escape route from within foliage, would be represented more strongly than the skylight pattern of polarized light [49]. This proposition is based on the following:…”
Section: Discussionmentioning
confidence: 99%
“…The FB, which is involved in visual learning and shape recognition[21, 22], is highly correlated with olfactory processing centers, such as the MB. The FB also responds to a wide range of visual stimuli during flight, suggesting that it plays a role in flight motor control[23]. As olfactory cues can also direct flight, in addition to visual feedback[24, 25], the observed strong functional connections with the MB may reflect the FB’s role in integrating multimodal signals to control flight.…”
Section: Discussionmentioning
confidence: 99%
“…To generate starfield stimuli (Weir and Dickinson, 2015), we populated a virtual 3-D volume with identically sized spheres at random, uniformly distributed, positions, and projected the image of each sphere onto the fly’s head. We illuminated those pixels on the display that overlapped with the projection cone onto the fly’s head.…”
Section: Star Methodsmentioning
confidence: 99%