Data from: Microsaccadic sampling of moving image information provides Drosophila hyperacute vision

Juusola, Mikko1, 2; Dau, An1; Song, Zhuoyi1; Solanki, Narendra1; Rien, Diana1, 2; Jaciuch, David1; Dongre, Sidhartha Anil1; Blanchard, Florence1; de Polavieja, Gonzalo G.; Hardie, Roger C.3; Takalo, Jouni1

Published Aug 28, 2018 on Dryad. https://doi.org/10.5061/dryad.12751

Data files

Aug 28, 2018 version files 2.19 GB

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Figure 1 (all responses to stimuli).opj

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Figure 1-Fig Supl 1 (data from all cells).opj

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Figure 10 (hyperacute optomotor experiments).opj

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Figure 10-Fig Supl 1 (all hyperacuity data).opj

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Figure 2 (SNR, infromation and efficiency).opj

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Figure 2-Fig Supl 1.opj

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Figure 2-Fig Supl 2 (eye-movement noise).opj

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Figure 2-Fig Supl 3 (Burst, WN and NS).opj

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Figure 2-Figure Suplement 4.opj

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Figure 3 (all WN simulations final).opj

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Figure 4 (simulated responses SNR info).opj

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Figure 5 (Info max all cells).opj

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Figure 5-Fig Supl 1 (comparing response SNRs ).opj

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Figure 6 (Combined).opj

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Figure 6-Fig Supl 1 (Sac Lin Shuf Rec and sim).opj

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Figure 7 (all two dots data).opj

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Figure 7-Fig Supl 1 (WT and hdc DA RFs).opj

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Figure 7-Fig Supl 2 (WT and hdc LA RFs).opj

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Figure 8 (microsaccades).opj

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Figure 8-Fig Supl 1 (WToutput 205 and 409 degs).opj

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Figure 9 (hyperacuity predictions).opj

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Figure 9-Fig Supl 1 (hyperacuity at 25C).opj

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Abstract

Small fly eyes should not see fine image details. Because flies exhibit saccadic visual behaviors and their compound eyes have relatively few ommatidia (sampling points), their photoreceptors would be expected to generate blurry and coarse retinal images of the world. Here we demonstrate that Drosophila see the world far better than predicted from the classic theories. By using electrophysiological, optical and behavioral assays, we found that R1-R6 photoreceptors' encoding capacity in time is maximized to fast high-contrast bursts, which resemble their light input during saccadic behaviors. Whilst over space, R1-R6s resolve moving objects at saccadic speeds beyond the predicted motion-blur-limit. Our results show how refractory phototransduction and rapid photomechanical photoreceptor contractions jointly sharpen retinal images of moving objects in space-time, enabling hyperacute vision, and explain how such microsaccadic information sampling exceeds the compound eyes' optical limits. These discoveries elucidate how acuity depends upon photoreceptor function and eye movements.

Usage notes

Figure 1 (all responses to stimuli)

Origin (OriginLab software) file that contains the data in Figure 1

Figure 1-Fig Supl 1 (data from all cells)

Origin (OriginLab software) file that contains the data in Figure 1-Figure Supplement 1

Figure 2 (SNR, infromation and efficiency)

Origin (OriginLab software) file that contains the data in Figure 2

Figure 2-Fig Supl 1

Origin (OriginLab software) file that contains the data in Figure 2-Figure Supplement 1

Figure 2-Fig Supl 2 (eye-movement noise)

Origin (OriginLab software) file that contains the data in Figure 2-Figure Supplement 2

Figure 2-Fig Supl 3 (Burst, WN and NS)

Origin (OriginLab software) file that contains the data in Figure 2-Figure Supplement 3

Figure 2-Figure Suplement 4

Origin (OriginLab software) file that contains the data for Figure 2-Figure Suplement 4

Figure 3 (all WN simulations final)

Origin (OriginLab software) file that contains the data in Figure 3

Figure 4 (simulated responses SNR info)

Origin (OriginLab software) file that contains the data in Figure 4

Figure 5 (Info max all cells)

Origin (OriginLab software) file that contains the data in Figure 5

Figure 5-Fig Supl 1 (comparing response SNRs )

Origin (OriginLab software) file that contains the data in Figure 5-Figure Supplement 1

Figure 6 (Combined)

Origin (OriginLab software) file that contains the data for Figure 6

Figure 6-Fig Supl 1 (Sac Lin Shuf Rec and sim)

Origin (OriginLab software) file that contains the data for Figure 6-Figure Supplement 1

Figure 7 (all two dots data)

Origin (OriginLab software) file that contains the data for Figure 7

Figure 7-Fig Supl 1 (WT and hdc DA RFs)

Origin (OriginLab software) file that contains the data for Figure 7-Figure Supplement 1

Figure 7-Fig Supl 2 (WT and hdc LA RFs)

Origin (OriginLab software) file that contains the data for Figure 7-Figure Supplement 2

Figure 8 (microsaccades)

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Figure 8-Fig Supl 1 (WToutput 205 and 409 degs)

Origin (OriginLab software) file that contains the data for Figure 8-Figure Supplement 1

Figure 9 (hyperacuity predictions)

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Figure 9-Fig Supl 1 (hyperacuity at 25C)

Origin (OriginLab software) file that contains the data for Figure 9-Figure Supplement 1

Figure 10 (hyperacute optomotor experiments)

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Figure 10-Fig Supl 1 (all hyperacuity data)

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