Weakly structured selectivity and high-dimensional representations across the cortical hierarchy
Lorenzo Posani, Shuqi Wang, Samuel Muscinelli, Liam Paninski, Stefano Fusi · COSYNE 2025
Despite the diversity of neural responses, the brain is highly structured both at anatomical and functional levels. Neurons in different brain areas exhibit different response profiles (large-scale anatomical organization), and within brain areas, the neurons can sometimes be grouped together into specialized subpopulations (categorical representations). Organization can also be found at the level of the representational geometry in the activity space, typically in the form of low-dimensional structure (e.g. disentangled abstract representations). However, it is unclear how the geometry in the
ePoster · Neuroscience