Feed-forward information and zero-lag synchronization in the sensory thalamocortical circuit are modulated during stimulus perception (original) (raw)

The direction of functional information flow in the sensory thalamocortical circuit plays a crucial role in stimulus perception. This study evaluates directional information measures between neurons in the somatosensory thalamus and cortex during a tactile detection task. It reveals that feed-forward information increases with stimulus amplitude, while feedback information remains stable, suggesting an interaction mechanism critical for perception. Additionally, zero-lag synchronization reflects the processing of sensory information, diminishing during error trials and when stimulus reporting is not required.