Yellin A M, Jerison H J
Brain Res. 1980 Jan 20;182(1):79-84. doi: 10.1016/0006-8993(80)90831-8.
Evoked potentials to visual stimuli (VEP) were recorded from the visual cortex of the unanesthetized hedgehog (Erinaceus europaeus), a primitive placental mammal with relatively little differentiation of cortex and thalamus. The VEPs consisted of several distinct positive and negative voltage deflections. Reproducibility of the response was high, as indicated from the small intrasession and intersession response variability. Rhythmic afterpotentials (AP), previously reported for higher mammals, were readily elicited. They had a lower frequency (3/sec) than APs observed in other mammals. The use of the hedgehog in electrophysiological and psychophysiological research is suggested because data obtained from this primitive placental mammal may shed light on CNS functions of higher mammals, as well as mammalian forms 'lower' on the evolutionary scale.
从未麻醉的刺猬（欧洲刺猬，一种大脑皮层和丘脑分化相对较少的原始有胎盘哺乳动物）的视觉皮层记录视觉刺激诱发电位（VEP）。VEP由几个明显的正电压和负电压偏转组成。如会话内和会话间反应变异性小所示，反应的可重复性很高。先前在高等哺乳动物中报道过的节律性后电位（AP）很容易诱发。它们的频率（3赫兹）比在其他哺乳动物中观察到的AP频率低。建议在电生理和心理生理学研究中使用刺猬，因为从这种原始有胎盘哺乳动物获得的数据可能有助于阐明高等哺乳动物的中枢神经系统功能，以及进化尺度上“较低等”的哺乳动物形态。
