Isolated operant component in the flight simulator

on Monday, January 21st, 2019 2:43 | by

Isolating operant component removes preference for left and right turning.

Each period is set to 120 seconds, meaning that the flies are getting a total of 8 minutes of training. The flies are performing two initial pre-tests, one test after 4 minutes of training and two final test periods. For the entire duration of the experiments flies are given a color indication if they are being punished or not as a result of left or right turning, this is a composite learning control. For the final test periods the colors have been removed, meaning that we are isolating the operant component. This is different from the previous tests that has been done where flies were not challenged with colors but just relied on their own behavior to determine which side is being punished. A removal of the helping colors resulted in a lack of preference for left- or right-turning maneuvers.

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Attempt to optimize BP

on Monday, January 14th, 2019 2:51 | by

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Ten-a cbd buridan

on Sunday, December 30th, 2018 4:24 | by

Second attempt running Ten-a cbd in the buridan setup. Camera was readjusted to fit the arena, as last time resulted in an elliptical shape.
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Platform schematic

on Monday, December 17th, 2018 2:57 | by

Difference dominance figures

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Figure 1
Figure 3
Figure 4
Figure 5
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Teneurin Buridan

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Measuring transmission spectra of color filters

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Measured with two different light sources. 

Dissection light

Light in torque meter

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Final Test

on Monday, November 26th, 2018 1:11 | by

This post shows the latest day of testing and its results.

Manual Testing:

All with small hooks:

All with big hooks:


All on front of plarform:

All on back of platform:

-> big hooks and front of platform seem like promising factors, let’s pool them!

Front and big hooks:

Front and small hooks (worse):


last problem: If compared to manual stimulation, opposite signals are found. Wrong manual stimulation?

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Results generated by

on Monday, November 12th, 2018 2:14 | by

The following Link shows the results of the latest tests with Wildtype flys, evaluated with the latest version of the HTML_DTS_project.R programm.

The histograms unfortunately show very little difference between the state of left turning arena and right turning arena.


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