A Probabilistic Palimpsest Model of Visual Short-term Memory
Figure 13
Error types for different population codes.
The graphs quantify different sorts of error in terms of the weights in a mixture model capturing local variability around an item, misbinding errors and random choices [7]. Human experimental curves are shown on the bottom right. This shows how misbinding errors are crucial components to fit human performance. Conjunctive population code: M = 225 units, σx = 0.3, Feature population code: M = 100 units, σx = 0.08, Mixed population code: M = 144 units, conjunctivity ratio = 0.85, σx = 0.1