Conditioned vocalizations as a technique for determining visual acuity thresholds in sea lions.
作者： R. J. Schusterman , R. F. Balliet
DOI: 10.1126/SCIENCE.169.3944.498
关键词: Visual angle 、 Grating 、 Underwater 、 Geology 、 Sea lion 、 Zalophus californianus 、 Optics 、 Visual acuity 、 Minute of arc 、 Acoustics
摘要: Aerial visual acuity and underwater were measured in two sea lions (Zalophus californianus) by training them to emit click bursts if they saw a striped target or remain silent gray target. The closest grating spacings that could be resolved both air under water subtended angle of 5.5 minutes arc at distance meters.
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harvard.edu参考文章(6)
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