Matthieu Chidharom
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matthieu-mx.bsky.social
Matthieu Chidharom
@matthieu-mx.bsky.social
Postdoctoral Researcher - Made in France 🇫🇷 - trying to understand why we get distracted - w/ Ed. Vogel and M. Rosenberg - University of Chicago
2/ Preprint here: osf.io/preprints/ps...
OSF
osf.io
October 31, 2025 at 8:41 PM
In any case, this “bath” does not really seem to affect the efficiency of the decoding for control and selective attention to the relevant stimulus. Maybe the bath affects (or is) the response selection, but I think we will need another task design to test this idea 🚀
September 30, 2025 at 3:07 PM
Maybe what we are decoding is the noise induced by competition between alternative goals—we proposed this idea in another preprint using a task-switch paradigm : osf.io/preprints/ps...
OSF
osf.io
September 30, 2025 at 3:07 PM
The question is: what exactly is it bathing in, beyond an attentional state? Could it be the level of arousal? We have a preprint showing that it’s not really the case: osf.io/preprints/ps...
OSF
osf.io
September 30, 2025 at 3:07 PM
It’s likely that the goal (task-set) directs selective attention toward relevant stimuli and response selection, and that all of this “bathes” in an attentional state of low or high distraction.
September 30, 2025 at 3:07 PM
That’s an excellent question, and modeling the effect could be really useful. If you look at the latency of decoding onset, it is earlier for the task-set than for selective attention.
September 30, 2025 at 3:07 PM
In Figure 4, we found no difference between in- vs. out-task decoding. However, we think participants put more effort into maintaining the (abstract) task during out periods, which leads to more sustained task decoding.
September 30, 2025 at 2:59 PM
We also love the controls in Fig. 3, thanks to the great Henry Jones!! We think that the zone decoding looks evoked probably because we are baselining the data…
September 30, 2025 at 2:59 PM
We have a handgrip in the lab that allows us to measure response force, and I think it could be great to use it to address this question and see vigor difference in- vs out-of-the-zone
September 30, 2025 at 2:59 PM
Thank you for your questions, I love this kind of feedback! It’s possible that we detect some low-level response feature, even if the motor response—pressing the space bar—remains quite simple, and differences in vigor are unlikely.
September 30, 2025 at 2:59 PM
Thanks @benediktehinger.bsky.social for asking! I was initially planning to wait until the paper was accepted before making the code and data public, but why wait? Here’s the OSF link: osf.io/kw2fz/ 🚀
September 30, 2025 at 3:02 AM
2/Our RSA analysis also shows that this distractibility signature is unique — independent of failures in cognitive control (goal maintenance) or selective attention to relevant stimuli.
September 28, 2025 at 7:14 PM