Tootfinder

Discovering functionally selective brain regions with a deep topographic multimodal model #AI #NeuroAI

Discovering Functionally Selective Brain Regions with a Deep Topographic Multimodal Model
Nearby neurons in cortex share similar response profiles, producing systematic spatial organization across sensory and cognitive systems. Recent topographic models reproduce aspects of this structure but remain unimodal and spatially constrain each layer separately, yielding fragmented maps that capture neither the contiguity of cortical processing streams nor their integration across modalities. We introduce Topo-Omni, a topographic multimodal model in which visual, auditory, and language/cogn…

Top-down feedback can explain the existence of working memory traces in early visual cortex #NeuroAI