Cone Inputs to Mouse Visual Cortex
Author Information
Author(s): Ekesten Björn, Gouras Peter
Primary Institution: Swedish University of Agricultural Sciences, Uppsala, Sweden; Columbia University, New York, NY, USA
Hypothesis
Do murine cone photoreceptor mechanisms show unique selectivity for cone inputs in the visual cortex that supports color vision?
Conclusion
Most cells in murine striate cortex receive excitatory inputs from both UV- and M-cones, with very few showing strong selectivity for one or the other.
Supporting Evidence
- Most cells in murine striate cortex respond similarly to both UV and M-cone stimuli.
- Only a small fraction of cells showed strong selectivity for one cone mechanism.
- The study recorded responses from 323 cells in the striate cortex.
Takeaway
The study looked at how mouse brain cells respond to different colors of light, finding that most cells can use both types of color inputs.
Methodology
Responses from single neurons in the visual cortex of 48 mice were recorded using light stimuli of 370 nm and 505 nm.
Limitations
The study's findings may not fully represent the complexity of color processing in the mouse visual system due to the rarity of cone opponent cells.
Participant Demographics
C57BL/J6 mice were used in the study.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website