Fig 10. Spike generation model.
Given the external stimulus x, the marked spike sequences κ are generated from the marked point process whose intensity is λ(κ ∣ x, ξ). Each mark in these sequences indicates a fluorescent footprint of a spike emitted by each neuron, and this mark is expressed as a transformed version Gκr in this figure. Because each neuron in the movie has a characteristic fluorescent footprint and a characteristic receptive field for stimulus x, λ(κ ∣ x, ξ) can be expressed as the multimodal function with peaks corresponding to each neuron. The blue and green components indicate the mean florescent footprints and the receptive fields of two different neurons, respectively.