Fig. 2: VTA activation is sensitive to the stimulation protocol category and the implant coordinates, with different trends in block and phasic stimulation trials.

Depicted are multifactorial (protocol and implant coordinates) comparisons of signal intensity in the VTA region of interest. a Task group comparison for animals targeted at all explored combinations of implant coordinates. b Implant coordinate comparison for block stimulation trials (inner dots indicate best category group). n sample size, PA posteroanterior, rel. relative to.