Fig. 3

Grooming behavior. a Time course of frequency of grooming behavior during the first 6 h of the dark phase. The data are expressed as mean ± SEM. *p < 0.05, compared with wildtype mice; ^# p < 0.05, compared with DD mice 24 h after the last L-DOPA injection. b Box plot showing total number of bouts of grooming during the first 6 h of the dark phase. **p < 0.01, compared with wildtype mice; ^## p < 0.01, compared with DD mice 24 h after the last L-DOPA injection. c Time course of duration of grooming behavior during the first 6 h of the dark phase. The data are expressed as mean ± SEM. *p < 0.05, compared with wildtype mice; ^# p < 0.05, compared with DD mice 24 h after the last L-DOPA injection. d Box plot showing total duration of grooming during the first 6 h of the dark phase. *p < 0.05, **p < 0.01, compared with wildtype mice. e Percentage of patterns of grooming behavior relative to total grooming during the first 2 h of the dark phase. The data are expressed as mean ± SEM. **p < 0.01,compared with wildtype mice; ^# p < 0.05, compared with DD mice 24 h after the last L-DOPA injection