Additional file 3.

Locomotor activity analysis by infrared sensor module recordings of activity frequencies. Mice were singly housed over a time period of four weeks and recordings were taken by integrating activity frequencies over time intervals of 10 min, each, as detected by the infrared sensor module throughout weeks 2-4. Ctsk-/- mice (grey dotted line) exhibited no obvious differences in locomotor activity and diurnal rhythm in comparison to WT controls (straight black line) (Ctsk-/- n = 5; WT n = 5).

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Dauth et al. BMC Neuroscience 2011 12:74   doi:10.1186/1471-2202-12-74