Efficient Identification of Assembly Neurons within Massively Parallel Spike Trains
Figure 8
Analysis of parallel spike trains from cat visual cortex. (a) Dot display of 85 multiunit spiking activities recorded simultaneously during low intensity full flash stimulation. The dot display shows the 3rd trial of low intensity stimulation lasting for 2.7 seconds. (b) Results of pairwise correlation analysis and subsequent clustering of groups of intracorrelated MUAs of the same data under consideration of all 16 trials (Figure modified from [18]). (c) Comparison of the results of the pairwise correlation analysis and our identification of potential assembly member neurons using . Surrogates are generated by trial shuffling. Each dot in the scatter display shows the rank of each MUA according to the number of involvements in significant pairwise correlations (-axis; rank of 1 corresponds to the smallest number) and the ranking according to the value of the test statistic with baseline (-axis; rank 1 corresponds to the lowest value).
