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Preparation of Horizontal Slices of Adult Mouse Retina for Electrophysiological Studies
Published on: January 27, 2017
Synchronized firing in the retina.
Jonathon Shlens1, Fred Rieke, Ej Chichilnisky
1The Salk Institute, La Jolla, CA, USA. shlens@salk.edu
Current Opinion in Neurobiology
|October 4, 2008
Summary
Synchronized neural firing in primate retinal ganglion cells originates from shared synaptic input. This local input significantly impacts visual signals transmitted to the brain.
Area of Science:
- Neuroscience
- Visual System Research
- Neural Coding
Background:
- Synchronized neural firing is a proposed elementary aspect of the neural code, but its origins and significance remain unclear.
- While documented in retinal ganglion cells, species and cell-type variations complicate understanding of its mechanisms and role in visual signaling.
Purpose of the Study:
- To unify the understanding of synchronized firing origins and impact in primate retinal ganglion cells.
- To investigate the mechanisms driving synchronized firing in ON-parasol and OFF-parasol cells.
Main Methods:
- Intracellular recordings from primate retinal ganglion cells (ON-parasol and OFF-parasol).
- Statistical analysis of synchronized firing patterns.
- Computational analysis of the impact on visual signals.
Main Results:
- Synchronized firing in ON- and OFF-parasol cells primarily stems from common synaptic input to adjacent cells.
- Local pairwise interactions explain population-wide synchronized firing patterns.
- The collective effect of synchronized firing on the visual signal is substantial.
Conclusions:
- Synchronized firing in primate parasol cells originates from locally shared synaptic input.
- This local input plays a significant role in shaping the visual signals sent from the retina to the brain.
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