Fig. 4: Subtypes are independent of methodological choices. | Nature Communications

Fig. 4: Subtypes are independent of methodological choices.

From: Multiple brain activation patterns for the same perceptual decision-making task

Fig. 4

A Sensitivity of clustering to resolution parameter. The number of clusters (subtypes) was stable over a range of resolution parameter (γ) values from 0.8 to 1.01 for each experiment. Higher γ values resulted in a larger number of clusters. B The increased number of subtypes obtained with higher γ values arises from separating a few trials from the main subtypes. To demonstrate that, we compared the clusters obtained with γ = 1 and γ = 1.1. As the figure demonstrates, there is a strong mapping between the first three (Experiments 1 and 2) or the first two (Experiment 3) subtypes obtained with γ = 1 and γ = 1.1. Thus, higher γ values do not lead to qualitatively different subtypes. C SVM Classification. The SVM classifier correctly labeled on average 87.2% of trials across all tasks.

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