Key research themes
1. How does the brain process and embody social-affective touch, and what roles do mirror mechanisms and C-tactile afferents play in vicarious tactile perception?
This research area investigates the neurophysiological and neurocognitive mechanisms underlying the perception of touch both when felt directly and vicariously (observed touch), emphasizing the social and affective dimensions mediated by specialized afferents (C-tactile fibers) and mirror neuron system components. Understanding these processes illuminates how humans connect affectively, how tactile mirroring occurs in mirror-touch synesthesia, and the role of multisensory integration in social cognition.
2. What multisensory and sensorimotor factors influence the perception and embodiment of touch in mirror illusions and tool use, and how do these phenomena inform our understanding of tactile body representation?
This theme encompasses research exploring how visual, proprioceptive, and tactile signals integrate to create illusions of touch and tool embodiment, revealing how top-down and multisensory processes modulate body representation and tactile perception. Investigations use mirror illusions and visual-tactile conflicts to study body ownership and the recalibration of tactile sensation, providing insights relevant for explaining vicarious touch experiences and mechanisms of mirror-touch synesthesia.
3. To what extent do bilateral and multisensory representations in the somatosensory cortex support tactile perception and mirror-touch experiences?
This research theme focuses on the spatial and temporal dynamics of tactile processing in the brain, particularly how unilateral and bilateral tactile afferents are represented and integrated in primary (SI) and secondary (SII) somatosensory cortices. These studies explore how these cortical areas encode both direct and observed touch, their mirror-like responses, and how such neural substrates facilitate the embodied mirroring characteristic of mirror-touch synesthesia.