pupillary manifold

New article!
Pupillary manifolds: uncovering the latent geometrical structures behind phasic changes in pupil size. We show that phasic changes in pupil size are inherently low-dimensional: they can be reconducted to a latent manifold that efficiently represents autonomic balance.
Elvio Blini
Nov 9, 2024 5 min read Pupilla, pupil dilation, pupillometry, autonomic response, interoception, dimensionality reduction, pupillary manifold, pupillary fingerprints, machine learning, feature extraction
Project
New article!
New preprint!
Phasic changes in pupil size are strikingly low-dimensional! In a new preprint, we show that very different tasks and processes map onto a very similar, low-dimensional latent space. We suggest that phasic changes in pupil size originate from a set of distinctive fingerprints that describe a pupillary manifold: a latent space that is highly constrained by the underlying physiological structures, i.e. the balance between different branches of the ANS.
Elvio Blini
May 24, 2024 3 min read Pupilla, pupil dilation, pupillometry, autonomic response, interoception, dimensionality reduction, pupillary manifold, pupillary fingerprints, machine learning, feature extraction
Project
New preprint!