LIP External Colloquium: Siying Xie, FU Berlin, Germany -„Unveiling feedback processing in visual object representations and their development in infancy“

Siying Xie, FU Berlin, Germany, will present
„Unveiling feedback processing in visual object representations and their development in infancy“

Abstract:

Object perception arises from a dynamic interplay between feedforward and feedback processes within the ventral visual stream, which continually transform visual representations and shape our experience. In this talk, I will present three studies during my PhD which examine how feedback shapes these representations in the adult brain and how these visual representations evolve in time during infancy. Study 1 identifies the alpha-frequency band as a spectral signature of feedback, mediating similarity between perceived and imagined objects. Study 2, using a backward masking paradigm, reveals when, where, and how feedback modulates visual representations during naturalistic object vision. Study 3 traces developmental changes from infancy to adulthood, uncovering differences in representational dynamics across time and frequency. Together, these findings shed light on the mechanisms by which feedback shapes visual representations and how these representations transform across brain development.

Join on-site or hybrid:

https://mpib-berlin.webex.com/mpib-berlin/j.php?MTID=m0a59036ad61cbab607fd42fdb4284752

Meeting number: 2743 508 8511
Password: mnUrDAqm325