Movchan E V
Neirofiziologiia. 1984;16(6):737-45.
Behavioral and bioacoustic techniques were used to investigate the role of the auditory cortex and inferior colliculi in echolocative detection and tracking of moving targets by the greater horseshoe bat as well as their role in the regulation of vocal apparatus. It is demonstrated that complete bilateral auditory cortex destruction leads to considerable and irreversible changes in the process of tracking of moving targets but produce no detectable effect on the functioning of the vocal apparatus. Complete bilateral destruction of the inferior colliculi causes a loss of responses to moving targets (an artificial target or an insect). Animals with bilaterally destructed inferior colliculi show drastic changes in spectra of their echolocation calls manifested as occurence of multiple high- and low-frequency spectral components. The data suggest that the inferior colliculi of the midbrain are directly involved in echolocative tracking of moving targets and in matching of reception-emitting system of the bat. Participation of the auditory cortex in the process of echolocative detection of moving targets involves optimization of the echolocation system performance.
行为学和生物声学技术被用于研究听觉皮层和下丘在大马蹄蝠对移动目标的回声定位探测与追踪中的作用，以及它们在发声器官调节中的作用。结果表明，双侧听觉皮层完全损毁会导致在追踪移动目标的过程中出现相当大且不可逆转的变化，但对发声器官的功能没有可检测到的影响。双侧下丘完全损毁会导致对移动目标（人工目标或昆虫）的反应丧失。双侧下丘损毁的动物其回声定位叫声的频谱出现剧烈变化，表现为出现多个高频和低频频谱成分。数据表明，中脑的下丘直接参与对移动目标的回声定位追踪以及蝙蝠接收-发射系统的匹配。听觉皮层参与移动目标的回声定位探测过程涉及优化回声定位系统的性能。
