A biophysically realistic Model of the Retina

نویسندگان

  • Melissa Louey
  • Piotr Sokół
چکیده

The intricate neural circuit in the retina is responsible for detecting and converting light into electrical signal. Basic imaging processing occurs within the network. This paper analysed the convergence of information within the retina at a cellular level. It found significant non-linear behaviour at the amacrine level. Possible accounts for this phenomenon have been presented.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A biophysically realistic simulation of the vertebrate retina

Retinal ganglion cells can be classi"ed as ON, OFF, Xand Y-cells which exhibit di!erent temporal and spatial properties. While X-cells respond with a small transient at stimulus onset and a strong sustained component, Y-cells show a strong transient response. In this work, simulation results from a biological highly realistic model of the retina are presented that could explain the origins of t...

متن کامل

Early-stage waves in the retinal network emerge close to a critical state transition between local and global functional connectivity.

A novel, biophysically realistic model for early-stage, acetylcholine-mediated retinal waves is presented. In this model, neural excitability is regulated through a slow after-hyperpolarization (sAHP) operating on two different temporal scales. As a result, the simulated network exhibits competition between a desynchronizing effect of spontaneous, cell-intrinsic bursts, and the synchronizing ef...

متن کامل

Metabolically Efficient Codes in The Retina

We tested the hypothesis that the neural code of retinal ganglion cells is optimized to transmit visual information at minimal metabolic cost. Under a broad ensemble of light patterns, ganglion cell spike trains consisted of sparse, precise bursts of spikes. These bursts were viewed as independent neural symbols. The noise in each burst was measured via repeated presentation of the visual stimu...

متن کامل

AN ANALYTICAL SOLUTION FOR DIFFUSION AND NONLINEAR UPTAKE OF OXYGEN IN THE RETINA

A simple mathematical model of steady state  oxygen distribution subject to diffusive transport and non- linear uptake in a retinal cylinder has been developed. The approximate analytical solution to a reaction- diffusion equation are obtained by using series expansions. The computational results for the scaled variables are presented through graphs. The effect of the important parameters (1) d...

متن کامل

A Fuzzy Realistic Mobility Model for Ad hoc Networks

Realistic mobility models can demonstrate more precise evaluation results because their parameters are closer to the reality. In this paper a realistic Fuzzy Mobility Model has been proposed. This model has rules which are changeable depending on nodes and environmental conditions. It seems that this model is more complete than other mobility models.After simulation, it was found out that not o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011