Fig. 9: Schematic of possible activity flows related to the deviance detection generation in the auditory cortex.
From: Change detection in the primate auditory cortex through feedback of prediction error signals
We propose that the core receives the sensory stimulus as it is, the difference between the repeated and deviant tones is calculated in unknown circuits in the auditory cortex (dotted ellipse), the RPB that highly adapts to the repetitive tone represents the pure error signal, the pure error signal in the RPB propagates backwards (magenta) to the core directly or through the belt and non-lemniscal thalamus, and the response to the deviant tone is enhanced in the core. This enhancement may be amplified within the auditory cortex and auditory thalamus.
