Topic: high-density silicon probes

The auditory system must accurately represent sounds over a wide range of sound intensities. Spike-rate adaptation is one proposed mechanism for enhancing discrimination between salient foreground stimuli and background noise through dynamic adjustments in response sensitivity to the unfolding statistical structure of soundscapes. A critical aspect of this form of statistical learning is the interplay between feedforward and feedback pathways forming “listening loops” in the auditory brain. We performed simultaneous recordings of neuronal activity in the inferior colliculus (IC) and the primar