Surrogate Gradients for Gradient-Based Parameter Estimation in Simplified Neuron Models
This paper introduces a differentiable Adaptive Exponential Integrate-and-Fire model using surrogate gradients within the Jaxley framework, demonstrating that while this approach enables efficient gradient-based parameter estimation for subthreshold dynamics, it currently fails to outperform gradient-free methods in recovering full spike trains due to the non-differentiable nature of the spike mechanism.