Last week to apply for a 3yr postdoc with @tsawallis.bsky.social, Frank Jäkel and myself. Deadline is March 15th hmc-lab.com/TAMPostdoc.h...
Together, these results provide a quantitative, normative account of tactile suppression during movement and point to a general principle for how tactile input may be regulated during action.
www.biorxiv.org/content/10.6...
As internal uncertainty about hand position increases, suppression decreases—consistent with greater reliance on somatosensory input. This makes a purely fixed gating account unlikely, as suppression changes systematically when we explicitly manipulate uncertainty.
For those wondering: What does cutaneous touch (like our vibrotactile stimuli) have to do with body state estimation?
Neurophysiological and behavioral work has shown that cutaneous afferents carry kinesthetic information and contribute functionally to movement detection and execution.
Why is touch perceived as weaker during movement?
In our new preprint 📝, we examine tactile suppression during reaching.
Using optimal control theory, we show that tactile suppression reflects dynamic, uncertainty-dependent integration of forward model predictions and sensory feedback.