Boyd E S, Boyd E H, Brown L E
Electroencephalogr Clin Neurophysiol. 1979 Mar;46(3):320-36. doi: 10.1016/0013-4694(79)90206-2.
A typical CNV paradigm, with food as reward, evokes in the squirrel monkey's post-arcuate and post-central cortices both M-waves in response to the cues and what appears to be a CNV in the interstimulus interval. Both wave forms appear to be generated locally in cortex and to be more closely related temporally to the cues than to the animal's behavioral response. The CNV, like the M-wave, appears to reflect the animal's level of interest in obtaining the reward. It is smaller when the animal misses the cues than when he responds correctly. It decreases as food pellets are consumed. It varies with the level of interest of the animal in a particular type of food pellet, as judged from the animal's behavior. At some recording sites in some animals it appears to reflect both interest in the reward and interest in manipulating the environment to obtain the reward. It can be maintained for at least 2 sec, but differs from the human CNV in that, with the paradigm used, it is not well resolved by the imperative cue. Averaging evoked activity with the animal's motor response as reference point reveals another negative wave form which just precedes the motor response.
一种典型的伴有食物奖励的CNV范式，会在松鼠猴的弓状后皮质和中央后皮质引发两种反应：对提示信号产生M波，以及在刺激间隔期出现类似CNV的波形。这两种波形似乎都是在皮质局部产生的，并且在时间上与提示信号的关联比与动物行为反应的关联更为紧密。与M波一样，CNV似乎反映了动物获取奖励的兴趣水平。当动物错过提示信号时，CNV比其正确做出反应时要小。随着食物颗粒被消耗，CNV会减小。根据动物的行为判断，CNV会因动物对特定类型食物颗粒的兴趣水平不同而有所变化。在某些动物的一些记录位点，CNV似乎既反映了对奖励的兴趣，也反映了对通过操纵环境来获取奖励的兴趣。它可以持续至少2秒，但与人类CNV的不同之处在于，在所使用的范式中，它不能被指令性提示很好地分辨出来。以动物的运动反应作为参考点对诱发活动进行平均，会揭示出另一种恰好在运动反应之前出现的负向波形。
