ESTIMATE OF MUTUAL INFORMATION CARRIED BY NEURONAL RESPONSES FROM SMALL DATA SAMPLES

Calculation of information carried by neuronal responses evoked by ext ernal stimuli has proven to be an effective tool to study the behaviou r of evoluted nervous systems. The major problem that arises in this a nalysis is that the number of stimulus/response pairs available from a n experiment is limited, while the calculation of the true information would ideally require an infinite number of pairs. In this paper we p resent a method that allows an accurate estimate of the information fr om a limited number of pairs. The method is tested on two types of syn thethic data. The first type is representative of a typical difficult problem in pattern recognition and signal detection, while the second type closely fits the response of geniculate parvocellular neurons to visual stimuli.