Skip to content →

Jörn Alexander Quent Posts

2018/05/02: End of schemaVR1 and start of schemaVR2

Today, I finished the data collection for schemaVR1. I collected 17 instead of 16 participants because I wanted to show the experiment to someone who then agreed to formally take part in this experiment. The two major the results of this experiment are that the locations of objects that are generally unexpected in a kitchen are remembered better (measured by 3D location recall and 3AFC location recognition) than the locations of objects that are expected in a kitchen. This can already be seen in the interim analysis (N = 9) that I uploaded here. The second result, which was only…

Leave a Comment

2018/04/12: Interim results and future plans

I am currently caught up with collecting data for my first experiment, which I will henceforth call schemaVR1, working on my first year report and analysing the interim results. I have collected data from eight participant so far and already got number of significant results. This is quite impressive considering that I also have only twenty stimuli/trials. I will upload the pre-processing script alongside a script analysing the interim results in the next days in a separate GitHub repository, where I will provide more details, but a very robust, and already significant, finding is that the locations of unexpected objects…

Leave a Comment

2018/03/22: General update and plan for the future

Even though the last post is basically a month ago, I am still committed to this diary. Therefore I thought to provide an update. I spent the last month with finishing the experiment and preparing its pre-registration. In that progress, I have started working on the R script that analyses the data to include it in the pre-registration. I want to use mixed linear models to analyse the data so that I can model the performance on individual trials. To really understand these models, I simulated data, which can be found here. This worked quite well though I still need…

Leave a Comment

2018/02/19: 3D location recall task in VR

As noted in the previous post, I want to create a 3D location recall task. I want that people are able to pick up objects from the floor and place them at the locations at which they think the objects were during encoding. I found a good YouTube tutorial (see here) and adapted the respective script (see here), which needs to be added to the wand controllers to work. My version of the script will be uploaded later when it finished. The basic approach is to make the target object a child of the wand controller and to make it…

Leave a Comment

2018/02/14: Final design of project 1

My supervisor and I agreed on the final design while discussing the results of the pilot experiment. We both think that it is important to replicate Lew & Howe (2016) results if their test is used, but not if one uses 3AFC test. They used a Y/N location recognition task (“Was this object in this place before?”) and location recall task (2D picture version). I will develop a spatial 3D location recall task for the VR system to replicate the results in the first experiment. I will also use a 3AFC test to show that it is bias at retrieval…

Leave a Comment

2018/02/13: Final analysis of pilot data

I just finished analysing the pilot data. The next step will be to improve the experimental protocol, some small issues about the graphics of the VE and creating the final analysis script. Link to RMarkdown file

Leave a Comment

2018/02/07: Variable naming

I recently realised that I am sometimes quite inconsistent when it comes to naming variables. I decided to stipulate a variable naming convention that I can stick to. This convention should be useable in the three major languages I use (R, Matlab, C#). That means I can’t for instance use dots within a name because it would only work in R.  I will keep an updated version here. I hereby stipulate the following rules to name variables: Variable names should be informative. Example: rt for reaction time. They should be short. Therefore I will use capitalisation to separate the variable…

Leave a Comment