🗣️PRIMERA SESIÓN DE PSYCHOBEERS DEL 2026✨
📢 Carmen Callizo Romero nos contará cómo las personas son capaces de pensar sobre un concepto tan abstracto como el tiempo, y cómo la cultura y la religión hacen que personas de diferentes puntos del mundo piensen sobre él de forma diferente ⏳💯
Huge thanks to @luisciria.bsky.social @trisbek.bsky.social @danielsanabria.bsky.social and Chiara Avancini!!
🔓 Open science
Raw EEG dataset (BIDS): doi.org/10.5281/zeno...
Processed data and analysis code: osf.io/7pt86/overview.
⁉️ These findings challenge the idea that multisensory integration is uniformly invariant.
Even fundamental perceptual computations appear to rely on flexible neural adjustments under non-optimal physiological states. [9/n]
Taken together, as alertness wanes, multisensory integration doesn’t disappear. Instead, its neural dynamics are altered to preserve function.
Core computations persist, but they run more slowly and less reliably. 💤🧠 [8/n]
However, multivariate decoding revealed preserved but less temporally stable multisensory representations.
🔄 And early cross-state generalization indicated shared underlying representational structure across alertness states. [7/n]
🧠 At the neural level, canonical univariate ERP markers of multisensory integration were delayed and attenuated during drowsiness. Early signatures were often barely detectable. [6/n]
However, when looking at full RT distributions through race models, violations of Miller’s bound were reduced during drowsiness.
❌ This means the computational signature of integration was weakened, not just globally slowed.
What did we find in this pre-registered study?
✅ At the behavioural level, the classic redundant signals effect survived drowsiness: multisensory cues still sped up responses, despite overall deteriorated performance.
MI looks preserved on the surface 👀 [4/n]
To test this, we recorded EEG while healthy adults performed an audio–tactile detection task as they naturally drifted from wakefulness into early sleep. [3/n]
Yet everyday behaviour unfolds in a multisensory world, where signals from different senses must be combined efficiently to guide action.
Do natural drops in alertness modulate even a fundamental perceptual process like multisensory integration (MI), or is it truly state-invariant? [2/n]
We all experience brief dips in alertness every day: night shifts, long drives, boring meetings 😵💫
These states are known to affect perception and decision making. [1/n]
🚨 New preprint 🚨
Multisensory integration is often described as basic, robust, even ✨“cognitively impenetrable” ✨
But does the brain still bind the senses when alertness drops? 😴🧠
🔗 We tested this during natural sleep onset:
www.biorxiv.org/content/10.6...
Thread below 👇
🎄 Happy Holidays from the Mind, Brain and Behavior Research Center!
We’re wrapping up the year with some churros and chocolate, and we can't wait for a 2026 filled with science!
🚵 How does arousal level affect cognition?
we show that cognitive control is preserved during sleepiness and intense exercise, but decision-making slows down while sleeping, and attentional focus improves while cycling. cimcyc.ugr.es/en/informati...
Data and paper open in the osf.io/uvq3m/
Esta noche a las 21h en Planta Baja!!
