Table 2.

Variables significantly loading onto each principal component in pooled midlife and young dataset.

Principal component	Significant variable loadings (name, magnitude)
PC1	Distance traveled (0.435)
	Target object visits (0.347)
	Hallway visits (0.437)
	Turns made (0.346)
	Pause duration (−0.333)
	Clustering of exploration of hallways (0.210)
	Button presses (0.450)
PC2	Clustering of exploration of objects (−0.515)
	Clustering of exploration of hallways (−0.523)
	Path roaming entropy (0.621)
PC3	Longest hallway sequence (−0.784)