Synergistic Geniculate and Cortical Dynamics Facilitate a Decorrelated Spatial Frequency Code in the Early Visual System.

ABSTRACT: Sensory stimuli are encoded by the neuronal firing patterns they evoke in the brain. This neural code becomes less correlated as information ascends through the visual system. In the primary visual cortex (V1), a spatial frequency (SF) tuning shift from coarse-to-fine features occurs alongside a reduction in correlations between stimulus representations. Our previous study suggested that this decorrelation is facilitated by coarse-to-fine processing in V1. However, there is evidence that coarse-to-fine processing emerges in the upstream dorsal lateral geniculate nucleus (dLGN), and it is unknown whether correlations between stimulus representations also decrease in this brain region. Therefore, the extent to which decorrelation is inherited from dLGN, is driven by local circuit dynamics in

SUBMITTER: Elsayed A 

PROVIDER: S-EPMC12755140 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature