Sullivan R M, Wilson D A
Department of Zoology, University of Oklahoma, Norman 73019.
Brain Res Bull. 1994;35(5-6):467-72. doi: 10.1016/0361-9230(94)90160-0.
Use of learned odor cues by newborn rats is critical for pup survival. Rat pups acquire approach responses to maternal odors through an associative conditioning mechanism. This learned behavioral response is accompanied by a modification of olfactory bulb neural response patterns to the learned odor. Both the behavioral and neural response changes involved and require norepinephrine release in the olfactory bulb. The source of this norepinephrine is the locus coeruleus. It is proposed that the unique response properties of the locus coeruleus during the early postnatal period in the rat may facilitate acquisition of these critical early memories.
新生大鼠对习得气味线索的利用对幼崽的生存至关重要。幼鼠通过关联学习机制获得对母体气味的趋近反应。这种习得的行为反应伴随着嗅球神经反应模式对习得气味的改变。行为和神经反应的变化都涉及且需要嗅球中去甲肾上腺素的释放。这种去甲肾上腺素的来源是蓝斑核。有人提出，大鼠出生后早期蓝斑核的独特反应特性可能有助于获取这些关键的早期记忆。
