I’m currently analyzing the Visual Coding Neuropixel dataset and have a question about how the area and center of receptive fields were calculated. I’ve used the get_unit_analysis_metrics_by_session_type() method to obtain the area, width, and height, but I’m seeking more information about the underlying methodology.
Was the area determined based on activity above a certain threshold, or were 2D Gaussian models fitted to identify the receptive field area?
If a threshold was used, where can I find the specific threshold values for each neuron?
In the white paper, it’s mentioned that receptive fields were smoothed for area calculation. Can you provide details on how this smoothing was conducted?
Many thanks in advance!