Figure 7.
Scatter plots of TA, middle NTA, and marginal NTA basal contacts and their clustering among the five OFF bipolar cell types. (A) Relationship between the total number of basal contacts and the number of TA contacts per cell. The slope line indicates the TA component of a total (TA + NTA) along the ordinate. (B) Numbers of marginal and middle NTA contacts are strongly correlated for the entire OFF bipolar cell population. (C) Dendrogram of cluster analysis (Ward's method) of 25 OFF bipolar cells using the four variables plotted in (A,B). Five clusters are differentiated.