iiinova — where your digital self keeps evolving

Sara Parmigiani @sparmi.bsky.social · 17/05/2025

Huge shoutout and thanks to the amazing co-authors and our participants! @sinico.bsky.social Alice Rossi Sebastiano Francesca Garbarini Luigi Cattaneo @cimecunitrento.bsky.social

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

This builds on pioneering work by researchers like Shiffrar & Freyd, who first showed how biomechanical constraints influence perception. Our study demonstrates these effects against competing unconscious influences.

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

Why does this matter? Our research suggests that body knowledge is uniquely robust in shaping perception. This has implications for understanding: Visual processing systems Body representations Human-computer interaction design Virtual reality experiences

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

This didn't happen with clock hands. Participants' perception of clock hands followed the prime regardless of direction when primed with either clockwise or counterclockwise motion. Our bodies shape what we see in ways that object knowledge doesn't.

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

💡 Key insight: When we unconsciously used masked priming to suggest hand movements in biomechanically impossible directions, participants showed resistance - they still perceived movements aligned with body constraints despite the visual priming!

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

The big question: Does our body knowledge influence perception differently than object knowledge? We found that body knowledge creates a stronger perceptual bias than object knowledge - it's harder to "trick" our perception of human movement than object movement!

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

In two experiments, we compared how people perceive the rotation of human hands vs. clock hands. While clock hands were generally perceived as rotating clockwise, human hands were perceived differently based on whether their rotations violated the biomechanics of our bodies.

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

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Sara Parmigiani @sparmi.bsky.social · 17/05/2025

🧠 JUST PUBLISHED: Our new study in Scientific Reports @nature.com reveals how our body knowledge fundamentally shapes how we perceive motion! The influence is remarkably robust, even against competing unconscious visual cues. 🔗: www.nature.com/articles/s41...

nature.com

How body knowledge shapes motion perception - Scientific Reports

Scientific Reports - How body knowledge shapes motion perception

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Sara Parmigiani @sparmi.bsky.social · 04/04/2025

Interested in learning more? Read the full paper in Clinical Neurophysiology! doi.org/10.1016/j.cl... 5/7

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Sara Parmigiani @sparmi.bsky.social · 04/04/2025

Key findings: Optimization reduced artifacts by 63% and increased early local TMS-evoked potentials (EL-TEPs), a measure of prefrontal excitability, by 75%! #EEG #TMS #TMSEEG 4/7

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Sara Parmigiani @sparmi.bsky.social · 04/04/2025

We introduce a novel method for optimizing TMS parameters in the dlPFC. Based on EEG responses, this closed-loop procedure optimizes TMS coil angle, location, and intensity in real time. 3/7

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Sara Parmigiani @sparmi.bsky.social · 04/04/2025

Why is this important? The dlPFC is a depression treatment target, but we need clinic-ready ways to measure stimulation effects. TMS-EEG can help, but artifacts obscure responses. 2/7

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Sara Parmigiani @sparmi.bsky.social · 04/04/2025

🧠 NEW PAPER: How do we capture excitability noninvasively in mood and emotion networks in the human brain? Here, we used real-time optimization to improve these measures! @saraparmi @KellerStanfordU @ClinicalNeuroph doi.org/10.1016/j.clinph.2025.02.261 1/7

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