MBON screen progress

on Monday, July 27th, 2026 12:43 | by

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MBON screen progress 19.06.2026

on Monday, June 22nd, 2026 12:15 | by

MBON screen of MB399 for MBON02, MB050B for MBON15, MB027B for MBON17 all crossed with TnTe and WTB x TnTe for the negative control. Flies are tethered in torque meter and one turning domain is punished with a hot laser invisible to the fly. Each turning domain is also associated with an arena color. The lights are turned off at the last two periods. Wild type flies fail to learn to avoid the punished domain after the training periods in these conditions. A positive PI-score in the 12th period indicates that the fly learned.
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MBON Screen progress 01.06.2026

on Monday, June 1st, 2026 12:59 | by

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MBON screen progress 26.05.2026

on Tuesday, May 26th, 2026 9:05 | by

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MBON screen progress 18.05.2026

on Monday, May 18th, 2026 12:32 | by

PI- values for world learning torque experiments. As usual the flies were tethered and subjected to adverse stimuli by laser dependent on torque domain, which also controlled arena color. Flies that show positive PI at the end indicate premature habit formation as WT flies don’t learn under these conditions in this time frame.
Same as above except the pretest preference has been subtraced
Current p-values for all the tested groups. Should be 25-30 flies at trial end.
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Torque Measurements 24-27.2.2026

on Monday, March 2nd, 2026 4:39 | by

Results from tethered flight in torque meter. Fly fixed to hook and flight torque measured while laser punishes either left or right turning. Higher PI score indicates longer stay in unpunished domain, orange colored periods are punished. Higher scores in period 9, 12 and 13 indicates learning. Fly genotype is Wild type Berlin, N=16.
Same as above, with PI adjusted to factor in initial domain preference.
A low P-score indicates that the result is statistically significant and the flies indeed learned.
Pie charts indicate efficiency of experiment success. Blue wedge represents flies that completed trial, other colors represent flies that failed. Efficiency still low, using laser at 100% duty cycle often causes flies to stop flying unless directed at exactly the right position on their antennae.

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2.Yaw torque

on Monday, March 2nd, 2026 1:08 | by

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Torque measurements 12.02.2026

on Friday, February 13th, 2026 12:38 | by

Torque results 12.02.2026, learning is abolished and many of the flies died. Think improper feeding is to blame. Granulated sugar had become encrusted and possibly inaccessible to the flies, potentially resulting in starvation. In the future, I’ll resolve to use less sugar and to clean more frequently to prevent this kind of buildup.
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More data from the basement

on Monday, July 8th, 2024 8:15 | by

With the modified laser settings I was able to test 3 more wtb. Here are the results:

–> yaw torque

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Testing the basement flight simulator

on Wednesday, June 19th, 2024 3:46 | by

Before collecting the actual data I make sure that the flight simulator in the basement does its thing ;) Here are the test runs with wtb flies for different protocols:

—>> yaw torque

–>> switch mode

–>> habit formation

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