Change of <i>SV</i> dynamics in response to drug infusion.

“Exp” denotes experiment (animal) number. N is the number of vessels segmented from individual experiments. m is the number of vessels for which spontaneous oscillatory activity (at least 10% above the noise background) was detected. E is the wavelet energy of the most prominent peak in the response relative to the wavelet energy at the same frequency in the control (Eq 3). f is the most prominent frequency in the corresponding frequency band. Energies and frequencies correspond to the vessels with induced vasomotion, i.e. to n1 and n2 vessels. Indexes 1 and 2 denote frequency bands of 0.1–0.3 Hz and 0.3–0.7 Hz, respectively. n is the number of vessels for which prominence of the highest peak (Eq 4) in the response is at least 10% higher than in the control.