Training school in Gothenburg

[By: Clément Dardenne]

From Monday 14th October to Friday 18th 2019, the ESRs (Early Stage Researchers) of the MOTION project gathered in Gothenburg for the last training school of 2019. My company, Smart Eye, was in charge of hosting the event, and I wanted to start this blog article by thanking Karin Persson and Jörgen Thaung for their devotion and the awesome organization of this week.

Since the training school was at Smart Eye, we began the first day with a tour of the offices, and several presentations and demonstrations of our eye tracking systems. Two researchers from Lund University were also there to present the fundamentals about eye tracking (data acquisition, data analysis, event classification, etc…).

 

The program of the following days was divided in that way:

    • Tuesday – TMSi
      • Summary of the main data analysis techniques with EEG
      • Focus on Fourier and Morlet Wavelet transform
      • Artefacts removal – Filtering
      • Practical session with EEG
    • Wednesday – Artinis
      • Essentials of the NIRS signal , hemodynamics in adults and infants
      • Quiz: Good vs. bad NIRS signal
      • Superficial activation and short channels correction
    • Thursday – Lancaster Univeristy
      • Strengths and weaknesses of EEG applied to infant research
      • Standard brain development paradigms
      • Comparison EEG with other methods of assessing the functional brain
    • Friday – Qualisys and Smart Eye
      • Workshop to combine Qualisys and Smart Eye devices

The last day of the training school in Gothenburg was hosted by Qualisys. A workshop have been prepared in collaboration with Smart Eye, with aim to combine motion capture and eye tracking technologies. The main objective was to study the gaze behavior of the subject when a moving target, defined thanks to Qualisys marker, was presented, and then hidden behind the screen.


    • Recording of the experiment with Julia, Victoria and Clément

The goal of this workshop was also to raise ESR’s awareness about the combination of several systems. Indeed, an important thing to take in consideration while combining two devices, is to make sure their data can be compared. In this case, the ESRs had to make sure the two systems were saving information at the same frequence and with the same timestamp. Moreover, both devices were tracking 3D coordinates (i.e. head and eyes for Smart Eye, head and marker for Qualisys). Hence, they had to make sure these coordinates can be compared, which implies to have them expressed in the same world coordinate system.

The training school was also the opportunity to discuss about future secondments and collaborations. In my case, Iara and I managed to do a sort of proof-of-concept, by combining Smart Eye system with a fNIRS headset from Artinis. The idea was to validate the feasibility of combining 2 devices working with infrared lights. It will probably lead to a secondment at a later date.

  • Simultaneous recording of eye tracking and brain activity

To conclude on a lighter tone, I think it’s worth to precise we kept some time to have fun! Indeed, Smart Eye organized an evening party, with a dinner at Joe Farelli’s, followed by several hours of pool and shuffleboard. Some of us find also the time to visit the archipelago, Slottsskogen and Botaniska Trädgården, which are activities that I highly recommend if you come to visit Gothenburg.

  • Tommaso, Iara, Penny, and Umay playing an intensive pool game