The structured ‘low temperature’ phase of the retinal population code
Fig 8
Emergence of structure in the energy landscape at low covariance strength.
All states in the light dataset with five or more spike counts were sorted by spike count and grouped into 100 equally populated groups. Averages were calculated over the states within each group (for clarity here indexed by p); the color of the line indicates the average spike count within a group (1613 states per group). A. Average similarity in direction of sampling between full model and model at correlation strength α. This is estimated as the average over data states, p, within a given group of states: . B. Similarities of magnitudes, estimated as 〈||X(Rp, α)|| / ||X(Rp, α = 1)||〉p. Dotted black lines on both panels indicate α* and unity.