Ultrafine spatial acuity of blind expert human echolocators.
Ultrafine spatial acuity of blind expert human echolocators.
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DOI：
10.1007/s00221-011-2951-1
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发表时间：
2012-02
影响因子：
2
通讯作者：
Whitney, David
中科院分区：
文献类型：
--
作者：
Teng, Santani;Puri, Amrita;Whitney, David
回声定位的生物体代表他们的外部环境使用反射的听觉信息从发出的声音。这种能力在各种非人类物种中早已为人所知，也被记录在一些盲人身上，作为导航，物体检测和粗略定位的辅助手段。令人惊讶的是，我们对回声空间感知最基本的基础-我们发现，专家们能够区分前内侧平面中小至~1.2°听觉角度的刺激的水平偏移，这一分辨率接近人类空间听觉的最大测量精度，与执行类似任务的蝙蝠相当。此外，我们发现了一个很强的相关性之间的回声定位敏锐度和失明的发病年龄。这第一次测量的功能性空间分辨率在人口专家回声定位器演示精度相媲美的视觉周边的有视力的个人。
Echolocating organisms represent their external environment using reflected auditory information from emitted vocalizations. This ability, long known in various non-human species, has also been documented in some blind humans as an aid to navigation, as well as object detection and coarse localization. Surprisingly, our understanding of the basic acuity attainable by practitioners—the most fundamental underpinning of echoic spatial perception—remains crude. We found that experts were able to discriminate horizontal offsets of stimuli as small as ~1.2° auditory angle in the frontomedial plane, a resolution approaching the maximum measured precision of human spatial hearing and comparable to that found in bats performing similar tasks. Furthermore, we found a strong correlation between echolocation acuity and age of blindness onset. This first measure of functional spatial resolution in a population of expert echolocators demonstrates precision comparable to that found in the visual periphery of sighted individuals.
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影响因子：
3.7
作者：
Thaler, Lore;Arnott, Stephen R.;Goodale, Melvyn A.
通讯作者：
Goodale, Melvyn A.
DOI：
10.3109/01050399109070785
发表时间：
1991-01-01
期刊：
SCANDINAVIAN AUDIOLOGY
影响因子：
--
作者：
MUCHNIK, C;EFRATI, M;HILDESHEIMER, M
通讯作者：
HILDESHEIMER, M
影响因子：
2.4
作者：
PACK, AA;HERMAN, LM
通讯作者：
HERMAN, LM
影响因子：
56.9
作者：
RICE, CE;FEINSTEIN, SH
通讯作者：
FEINSTEIN, SH
影响因子：
56.9
作者：
KELLOGG, WN
通讯作者：
KELLOGG, WN