Leon Kroczek
@leonkroczek.bsky.social
1.4K followers 1K following 58 posts
Social affective neuroscience in and outside Virtual Reality. PostDoc at Regensburg University. MPI CBS alumnus
Posts Media Videos Starter Packs
Pinned
leonkroczek.bsky.social
Our paper on persona effects in face-to-face social interactions between humans and #LLM-controlled virtual agents is now published in Computers in Human Behavior!
🗣️🤖

doi.org/10.1016/j.ch...

#VirtualReality
#SocialInteraction #Human-AI #HCI #LLM
Redirecting
doi.org
Reposted by Leon Kroczek
sabrinagado.bsky.social
#wuertual25 just started!
Looking forward to an interesting and inspiring 3 days ahead 🚀
Reposted by Leon Kroczek
toninfrc.bsky.social
📢Our peer-reviewed article about the AffectTracker is finally out! 😲🕹️📈
Traditional methods for rating emotion often miss the dynamic, moment-to-moment nature of feelings. We designed a tool to capture this continuous affective experience in real-time during dynamic emotional stimulation.
Frontiers | AffectTracker: real-time continuous rating of affective experience in immersive virtual reality
Subjective experience is key to understanding affective states, characterized by valence and arousal. Traditional experiments using post-stimulus summary rat...
doi.org
leonkroczek.bsky.social
Besides replicating our previous study doi.org/10.1016/j.bi...
, we also made an interesting observation:

When sending an emoji per button press we found an increase in EMG activity in the corresponding facial muscle

😀 -> M. Zygomatiucs
😠 -> M- Corrugator
Redirecting
doi.org
leonkroczek.bsky.social
This work originated in a undergrad course on experimental psychology. I'm super proud of my students (and now co-authors) who continued to work on this with me - even when the course was long over
Reposted by Leon Kroczek
dingdingpeng.the100.ci
I've said it before, and I will say it again:

It's astonishing how emotionally aversive revisions are, even in the best possible case (reviewers are positive and have very actionable remarks).

Or at least that's how I work; if anybody has some good recommendations for coping, do let me know 😂
leonkroczek.bsky.social
But the personas also influenced participants' behavior Participants also talked more when conversing with teh extraverted vs. introverted agents
leonkroczek.bsky.social
Interestingly, the two personas changed how participants evaluated the virtual agent: The extraverted model was rated as more pleasant.
leonkroczek.bsky.social
The LLM was prompted to be either extraverted and talkative or introverted and less talkative.

Using the NEO-FFI as a manipulation check confirmed these differences. The extraverted model also produced more words
leonkroczek.bsky.social
We used #embodied #conversational #agents in #VirtualReality.

By combining speech2text, speech-synthesis, and lip-synced animations for #Metahumans our participants engaged in real-time conversations with a virtual human
leonkroczek.bsky.social
Our paper on persona effects in face-to-face social interactions between humans and #LLM-controlled virtual agents is now published in Computers in Human Behavior!
🗣️🤖

doi.org/10.1016/j.ch...

#VirtualReality
#SocialInteraction #Human-AI #HCI #LLM
Redirecting
doi.org
Reposted by Leon Kroczek
vrneuroscience.bsky.social
#VRresearch
michaelgaebler.com
Join me!

I missed the 1st edition but heard so many good things & I'm happy to attend the 2nd edition of

**Wuertual Reality XR-Meeting 2025**

Focus: research and application of #XR in psychology, neuroscience & medicine - from theoretical foundations to clinical applications

www.wuertual.org
XR-Meeting Würzburg
October 8-10, 2025, Würzburg, Germany #wuertual25
www.wuertual.org
Reposted by Leon Kroczek
flxklotz.bsky.social
If you‘re working with XR in the context of research and happen to be at #PuG2025 – I suggest you drop by at my poster about our EDIA toolbox @ediatoolbox.bsky.social .
Let’s chat, connect, collaborate. Not in the area? Check out the poster below and reach out digitally: edia-toolbox.github.io
mbe-lab.bsky.social
Designing VR experiments just got easier! 🧠🕶️@flxklotz.bsky.social will present EDIA, an open-source tool for building and conducting VR experiments in Unity, featuring a real-world example evaluating eye tracking performance across 5 VR headsets.

Poster B208
📆 Fri, June 20 | 13:00-14:30
📍 2.XXX Z6
leonkroczek.bsky.social
It was really fun! Thanks to all contributors
Reposted by Leon Kroczek
sabrinagado.bsky.social
I might be biased, but what an inspiring #VR symposium at #PuG25 🤩
This field still develops so fast 🚀as showcased by the integration of neurophysiology, multi-user settings and clinical application.
Thanks to @martandreatta.bsky.social, @leonkroczek.bsky.social, @michaelgaebler.com and Marius Rubo!
leonkroczek.bsky.social
New preprint!

Here we investigate sustained threat responses elicited by social contexts in #VirtualReality looking at:

🧠🌊 Neural Oscillations
🔊Fear potentiated startle
💦 SCL
🗓️Self-report

All measures show successful fear learning by social contexts ✅
psyarxivbot.bsky.social
Neural and Affective Dynamics of Social Context Conditioning in Virtual Reality: https://osf.io/sftu3
Reposted by Leon Kroczek
psyarxivbot.bsky.social
Neural and Affective Dynamics of Social Context Conditioning in Virtual Reality: https://osf.io/sftu3
leonkroczek.bsky.social
Excited about all #PUG25 @biodgps-dgpa.bsky.social posts coming in!

Check out our symposium "The Best of Both Worlds? Bridging Behavior and Physiology Using Immersive #VirtualReality"
🗓️Friday 14:30-16:00

@sabrinagado.bsky.social
@michaelgaebler.com
Marius Rubo
@martandreatta.bsky.social
Reposted by Leon Kroczek
kanskelab.bsky.social
Our team is excited to be part of @pug2025.bsky.social [email protected] and @dgps.bsky.social in Würzburg this week! Please reach out and approach us if you want to chat or meet! We look forward to an inspiring conference! ✨

News entry with list of our contributions: tud.link/39nus1
Reposted by Leon Kroczek
mariame.bsky.social
Last pre-PuG rehearsal with critical mock audience 😄

Now fully prepared for our symposium on Friday ⬇️

#PuG2025
Laptop screen with my symposium talk Some chickens behind a fence
Reposted by Leon Kroczek
mbe-lab.bsky.social
We are excited to be headed to Würzburg for "Psychologie und Gehirn" #PuG2025! Follow along for updates and behind-the-scenes from the MBE group 📣

Curious to know what we'll present? Open the thread below for when and where to find us 👇

@biodgps-dgpa.bsky.social @pug2025.bsky.social
Reposted by Leon Kroczek
igor-dgps.bsky.social
IGOR is going to #PuG2025 in Würzburg! 🧠
@pug2025.bsky.social

We’re bringing open science to the spotlight with a series of events throughout the conference. Come meet us, discover our latest work, and get involved!

🧵 Check the thread below for all IGOR events. [1/6]