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Motion Processing by Interactions of Receptive Field Center and Surround in Primate Retinal Ganglion Cells

Award Number: F31EY032316
ORGANIZATION: NATIONAL EYE INSTITUTE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS
PERIOD OF PERFORMANCE START DATE: 01/01/2021
PERIOD OF PERFORMANCE END DATE: 12/31/2023

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Motion Processing by Interactions of Receptive Field Center and Surround in Primate Retinal Ganglion Cells - PROJECT SUMMARY The overall goal of this proposal is to understand the role of interactions between the receptive field center and surround in encoding motion signals in sparsely expressed retinal ganglion cells of the macaque monkey retina. Studies of primate retinal ganglion cell physiologies have largely been limited to 5 dominantly expressed types. This proposal will contribute to our understanding of three poorly understood and sparsely expressed ganglion cell types: the broad thorny, the ON smooth monostratified, and the OFF smooth monostratified. These three types will be characterized in terms of center-surround interactions that contribute to each ganglion cell’s functional output. The proposed research has two specific aims: 1) To determine whether surround motion facilitates spiking outputs of smooth monostratified ganglion cells. I will record synaptic inputs and spiking outputs of smooth monostratified ganglion cells to measure ganglion cell sensitivity when a motion stimulus is presented to the surround. I will test the specific hypothesis that despite showing a traditionally suppressive surround to stationary spots, the smooth monostratified cell’s spiking output is facilitated by motion in the surround. 2) To determine whether center and surround interact to create selectivity for object motion in the broad thorny ganglion cell. I will measure synaptic inputs and spiking outputs of the broad thorny ganglion cell to determine whether motion in the broad thorny surround is suppressive to all visual inputs except object motion. My experiments will test the specific hypothesis that surround motion makes the broad thorny sensitive to differential motion.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2025 ( Subtotal = -$4,086 )
2025	2023	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	000	3	10/23/2024	NON-COMPETING CONTINUATION	-$4,086
														Subtotal = -$4,086

Issue Date FY: 2023 ( Subtotal = $43,420 )
2023	2023	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	001	3	3/8/2023	NON-COMPETING CONTINUATION	$942
2023	2023	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	000	3	1/4/2023	NON-COMPETING CONTINUATION	$42,478
														Subtotal = $43,420

Issue Date FY: 2022 ( Subtotal = $41,919 )
2022	2022	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	000	2	12/10/2021	NON-COMPETING CONTINUATION	$41,203
2022	2022	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	001	2	6/7/2022	NON-COMPETING CONTINUATION	$716
														Subtotal = $41,919

Issue Date FY: 2021 ( Subtotal = $40,672 )
2021	2021	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	002	1	2/9/2021	NEW	$516
2021	2021	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	000	1	12/9/2020	NEW	$40,156
2021	2021	UNIVERSITY OF WASHINGTON	4333 BROOKLYN AVE NE	SEATTLE	WA	98195	KING	USA	Vision Research	001	1	12/9/2020	NEW	$0
														Subtotal = $40,672

Grand Total All Awards = $121,925

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Motion Processing by Interactions of Receptive Field Center and Surround in Primate Retinal Ganglion Cells

Award Number: F31EY032316

ORGANIZATION: NATIONAL EYE INSTITUTE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: FELLOWSHIP/SCHOLARSHIP/STUDENT LOANS

PERIOD OF PERFORMANCE START DATE: 01/01/2021

PERIOD OF PERFORMANCE END DATE: 12/31/2023

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