Intensity modulation of olfactory acuity

被引：29

作者：

Cleland, TA ^{[1
]}

Narla, VA ^{[1
]}

机构：

[1] Cornell Univ, Dept Neurobiol & Behav, Ithaca, NY 14853 USA

来源：

BEHAVIORAL NEUROSCIENCE | 2003年 / 117卷 / 06期

关键词：

D O I：

10.1037/0735-7044.117.6.1434

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Acuity is fundamental to sensory systems, establishing the foundation for detectable differences in stimulus quality and consequently shaping animals' sensory capacities. In the olfactory system, which samples intrinsically high-dimensional chemical information, acuity for odor quality is measurable by means of ad hoc dimensions based on behaviorally confirmed sets of sequentially similar odorants. The authors measure olfactory acuity in mice using a rewarded forced-choice odor generalization task and show that mice exhibit greater olfactory acuity in response to higher concentration (1.0 Pa) odorants than to lower concentration (0.01 Pa) odorants. Results suggest that the dynamic modulation of sensory acuity-not necessarily its maximization-is an important component of olfactory processing and reflects the salience of odorant stimuli.

引用

页码：1434 / 1440

页数：7

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