From: Does changing from a first generation antipsychotic (perphenazin) to a second generation antipsychotic (risperidone) alter brain activation and motor activity? A case report
Perphenazin
Risperidone
Mean activity
301 ± 79
298 ± 48
SD
270 ± 67
254 ± 43
RMSSD
250 ± 48
216 ± 19**
RMSSD/SD
0.94 ± 10
0.87 ± 12*
Sample entropy
1.35 ± 0.18
1.33 ± 0.29