Computing Dual-Route Fear-Conditioning Circuits using Audio Signals

This paper looks into the dual route model of fear conditioning using gammatone filterbank for auditory pre-processing, in order to extract contiguous frequency bands from auditory stimuli, as seen in auditory nerves. The model focuses on two routes i.e., the cortical pathway using the auditory cortex as a messenger between auditory thalamus and the amygdala & the sub-cortical pathway where, the amygdala has direct input from the thalamus. Several lesion experiments were simulated on the model to explain the differences between the two routes. But in the same time it has been identified that a requirement of a more biophysical model exists to capture more of the functional differences that exists between these two routes.