Subject area	Psychology
More specific subject area	Mouse behavior and cognition
Type of data	Figures
How data were acquired	IntelliCage™ (New Behavior AG, Zurich, Switzerland; http://www.newbehavior.com)
Data format	Analyzed, graphed
Experimental factors	Genetic engineering to eliminate one of the three tryptophan-metabolizing enzymes – IDO1, IDO2 and TDO2 – in mice.
Experimental features	Behavioral analysis of mice subjected to adaptation and learning modules in the IntelliCage
Data source location	The University of Sydney, New South Wales, Australia
Data accessibility	Data are with this article