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From scenes to spikes: Understanding...

Zylberberg, Joel Leon.

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From scenes to spikes: Understanding vision from the outside in.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	From scenes to spikes: Understanding vision from the outside in./
作者:	Zylberberg, Joel Leon.
面頁冊數:	96 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.
Contained By:	Dissertation Abstracts International74-07B(E).
標題:	Physics, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3556027
ISBN:	9781267976451

From scenes to spikes: Understanding vision from the outside in.
Zylberberg, Joel Leon.

From scenes to spikes: Understanding vision from the outside in. - 96 p.

Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.

Thesis (Ph.D.)--University of California, Berkeley, 2012.

The human genome (containing &sim; 1010 bits of information) is unlikely to fully specify the connectivity between neurons in our brains---such a "wiring diagram" requires &sim; 1014 bits. Physiological evidence suggests that the genome instead specifies plasticity rules through which the brain self-organizes in response to experience. As systems neuroscientists, we seek to understand those rules and, by extension, our brains. In this thesis, I will use this approach to study the primary visual cortex (V1)---the brain region that receives visual inputs from the eyes, via a relay station called the lateral geniculate nucleus. I first study the statistical structure of natural images, which provide the visual experience that shapes V1. Then, I introduce a biophysically motivated model for visual cortex, which adapts to natural image statistics in order to efficiently encode them---in this case, the neural plasticity rules can be shown to optimize this "efficient" representation. I then demonstrate that this model can account for several features of V1 physiology, including the features to which V1 neurons respond ("receptive fields"), and the developmental trends in the sparseness of V1 activity. I will conclude that efficient coding models can be implemented within the constraints imposed by the neural substrate, and that efficient coding principles may yield a parsimonious systems-level understanding of visual cortex.

ISBN: 9781267976451Subjects--Topical Terms:

1018488
Physics, General.

From scenes to spikes: Understanding vision from the outside in.
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