New findings on neuronal activities in the sensorimotor cortex UniFreiburg NatureComms
randomly chosen units. As before, given the lower number of neurons, we reduced to 10 dimensions. To investigate the dimensionality of the LEM space using the method of ref., we computed the average number of neighbors of all time points in the 20-dimensional LEM space in circles with increasing radii. The dimensionalities were then obtained as the slope of a line around the steepest point in a log–log plot of neighbors against radii., which is more efficient for very large datasets.
To investigate whether the relative positions of the neural representations associated with different behavioral classes were conserved across sessions and animals, we computed the Euclidean distance between the average behavioral population vectors of a session, then tested whether these distances were more similar to those observed in other sessions than to what would be expected by randomly shuffling the behavioral state labels.
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