Specifically, electrocutaneous stimuli were randomly delivered to the sural nerve at one of five intensities (50% pain threshold, 75% pain threshold, pain threshold, midway between pain threshold and pain tolerance, pain tolerance) at five intervals (0, 150 , 300 450, and 600 ms) after the R-wave of the electrocardiogram.
To blind the subject to stimulus intensity, intermittent sham stimuli were randomly delivered.
In Germany, approximately half of the baits were randomly delivered by aircraft, and the intervals between two baiting actions varied from 2 to 4 months.
In line with this the lip MEPs are enhanced even when TMS pulses are randomly delivered during continuous speech, not time-locked to "liparticulated" phonemes (Murakami et al., 2011; Watkins et al., 2003).
In each session, eight undefended and eight defended prey were presented in a sequence in which two undefended and two defended prey were randomly delivered in every four presentations (this ensured that prey were equally distributed across the daily session).
After selecting matched sites within each VISN, one was randomly selected to deliver PDC and the other was deemed the comparison site that would deliver usual care (UC).
In the other VISN, Houston was randomly selected to deliver PDC and Oklahoma City was selected as its matched UC site.
Specifically, in one VISN, Boston was randomly selected to deliver PDC and Providence was selected as its matched UC site.
To avoid order effects, each thermal condition was pseudo-randomly delivered two times over four functional runs.
