Leonard C M
J Comp Physiol Psychol. 1978 Dec;92(6):1084-94. doi: 10.1037/h0077518.
Five-day-old golden hamster pups were tested preoperatively on a thermal gradient, subjected to bilateral or unilateral olfactory bulbectomy or control dorsal cortical removal, and then tested on Days 6-15. Locomotion and rectal or belly temperature were monitored throughout the 2-min test. Control pups became quiescent in the hot end of the gradient on Days 5-7 but after Day 8 chose cooler regions and increased their activity. Both unilaterally and bilaterally bulbectomized pups spent more time in the heat throughout testing. They were also less active and allowed their temperature to rise more rapidly than controls. Percentage of time in the heat was elevated in all bulbectomized pups, although some retained the ability to make an olfactory discrimination. Enhanced thermal behavior is apparently not due to anosmia per se. Altered thermal perception or responsitivity may result from loss of "nonspecific" olfactory projections that normally would mature at the beginning of the second week.
对出生5天的金黄地鼠幼崽在术前进行热梯度测试，然后进行双侧或单侧嗅球切除术或对照性的背侧皮质切除术，之后在第6至15天进行测试。在整个2分钟的测试过程中监测其运动情况以及直肠或腹部温度。对照幼崽在第5至7天在热梯度的热端变得安静，但在第8天后选择较凉爽的区域并增加了活动量。单侧和双侧嗅球切除的幼崽在整个测试过程中在热区花费的时间更多。它们的活动也较少，并且体温比对照幼崽上升得更快。所有嗅球切除的幼崽在热区的时间百分比都有所升高，尽管有些仍保留进行嗅觉辨别的能力。增强的热行为显然不是由于嗅觉丧失本身。热感知或反应性的改变可能是由于通常在第二周开始时会成熟的“非特异性”嗅觉投射丧失所致。
