5 papers
A subjective distance between stimuli: quantifying the metric structure of representations
D. Oliva, I. Samengo, S. Leutgeb +1
As subjects perceive the sensory world, different stimuli elicit a number of neural representations. Here, a subjective distance between stimuli is defined, measuring the degree of…
Independent neurons representing a finite set of stimuli: dependence of the mutual information on the number of units sampled
Ines Samengo
We study the capacity with which a system of independent neuron-like units represents a given set of stimuli. We assume that each neuron provides a fixed amount of information, and…
Representational capacity of a set of independent neurons
Ines Samengo, Alessandro Treves
The capacity with which a system of independent neuron-like units represents a given set of stimuli is studied by calculating the mutual information between the stimuli and the neu…
Measuring information spatial densities
Michele Bezzi, Ines Samengo, Stefan Leutgeb +1
A novel definition of the stimulus-specific information is presented, which is particularly useful when the stimuli constitute a continuous and metric set, as for example, position…
Information loss in an optimal maximum likelihood decoding
Ines Samengo
The mutual information between a set of stimuli and the elicited neural responses is compared to the corresponding decoded information. The decoding procedure is presented as an ar…