Kemble E D, Blanchard D C, Blanchard R J
Division of Social Sciences, University of Minnesota, Morris 56267.
Physiol Behav. 1990 Jul;48(1):1-5. doi: 10.1016/0031-9384(90)90251-x.
Flight and defensive behaviors of wild black rats (R. rattus) in response to nonpainful threatening stimuli were examined before and after regional amygdaloid lesions. Striking disruption of flight was found following damage to all major amygdaloid regions. In contrast, reduced defensiveness was most consistently associated with damage to cortical and, perhaps, central nuclei. The diffuse organization of flight behavior may result from extensive modality-specific cortical afferents to the amygdala and the varied provided by naturalistics threats. The more restricted representation of defensive attack may have resulted from diminished responsiveness to vibrissal stimulation mediated by medial and dorsomedial amygdaloid structures.
在局部杏仁核损伤前后，对野生黑家鼠（R. rattus）针对非疼痛性威胁刺激的逃避和防御行为进行了研究。发现损伤所有主要杏仁核区域后，逃避行为受到显著破坏。相比之下，防御性降低最常与皮质核以及可能的中央核损伤相关。逃避行为的分散组织可能源于杏仁核广泛的特定感觉模态皮质传入纤维以及自然主义威胁所提供的多样性。防御性攻击的表现较为局限，可能是由于内侧和背内侧杏仁核结构介导的对触须刺激的反应性降低所致。
