Fig. 12.

Response time of domestic cats to tinctures made from cat-attracting plants. Box and whisker plot showing the median response time of 5 cats (horizontal line) and median response time of each cat (dots). The response time is shown as time per hours availability of the tinctures. Each tincture was available for 5 h. Ethanol was used as a negative control. The response duration of cat Z to the V. officinalis tincture is shown as a brown dot (18 s/h availability). This cat did not respond at all to 15 g dried valerian root that was available for 10 days, 10 h per day