Supplementary Figure 3: Shifting the angle bins does not impair model performance.
From: Spatiotemporal receptive fields of barrel cortex revealed by reverse correlation of synaptic input
The 8-dimensional representation binned in cardinal directions (top left) was compared against one where the bins were shifted by 22.5° (top right). For each neuron, model performance using the cardinal stimulus representation was plotted against performance using the shifted representation (bottom). The least-squares regression of the data (red) falls exactly over the unity line (blue) demonstrating that cardinal directions play no special role and that this level of directional discretization (45° wide bins) used in our is adequate.
