کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2203425 | 1100450 | 2006 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Information processing in the olfactory systems of insects and vertebrates Information processing in the olfactory systems of insects and vertebrates](/preview/png/2203425.png)
Insects and vertebrates separately evolved remarkably similar mechanisms to process olfactory information. Odors are sampled by huge numbers of receptor neurons, which converge type-wise upon a much smaller number of principal neurons within glomeruli. There, odor information is transformed by inhibitory interneuron-mediated, cross-glomerular circuit interactions that impose slow temporal structures and fast oscillations onto the firing patterns of principal neurons. The transformations appear to improve signal-to-noise characteristics, define odor categories, achieve precise odor identification, extract invariant features, and begin the process of sparsening the neural representations of odors for efficient discrimination, memorization, and recognition.
Journal: Seminars in Cell & Developmental Biology - Volume 17, Issue 4, August 2006, Pages 433–442