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Saccade Target Selection in Naturalistic Visual Search

Award Number: R01EY030669
ORGANIZATION: NATIONAL EYE INSTITUTE
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)
PERIOD OF PERFORMANCE START DATE: 09/01/2019
PERIOD OF PERFORMANCE END DATE: 06/30/2025

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Saccade Target Selection in Naturalistic Visual Search - Project Summary Understanding how we select targets for saccadic eye movements is a basic research question of far-reaching importance. These rapid eye movements allow the fovea to fixate objects of interest, and we typically make more than 170,000 saccades each day. Saccades are essential for efficient visual perception and action: from reading to cooking to driving, most common behaviors heavily engage the saccadic system, and a dysfunctional mechanism for selecting saccade targets would impair performance in all of these everyday activities. The superior colliculus (SC), a key midbrain structure responsible for controlling saccades, is comprised of two subdivisions: the superficial layers (SCs), which respond predominantly to visual stimuli, and the intermediate layers (SCi), which can show both visual and saccade-related responses. Despite its importance, we still know little about how the SC selects saccade targets in realistic conditions. This study will address this critical gap in our knowledge. A major obstacle to progress in this area has been the complexity of analyzing neural responses under naturalistic conditions, and tackling this problem requires a model that can provide testable predictions of neural responses in naturalistic conditions. We will use a state-of-the-art neural model, MASC (Model of Attention in the Superior Colliculus), which incorporates constraints based on SC anatomy and physiology, and does a superior job of predicting saccade endpoints and scanpaths in a variety of search and free-viewing tasks. In conjunction with neural recordings, we will elucidate how superficial- and intermediate-layer SC neurons differ in their integration of activity related to salience, relevance, inhibitory tagging, and movement selection during multi-saccade visual search. In addition, we will test the contributions of the frontal eye field, a cortical area providing input to the SC, to these search-related signals in the SC.


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: 2026 ( Subtotal = $0 )
2026	2023	THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK	33 WEST 42ND STREET	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	000	5	2/26/2026	NON-COMPETING CONTINUATION	$0
														Subtotal = $0

Issue Date FY: 2025 ( Subtotal = $642,031 )
2025	2025	RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE	33 W 42ND STREET FL 19	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	001	6	7/1/2025	COMPETING CONTINUATION	$642,031
2025	2023	RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE	33 W 42ND STREET FL 19	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	000	5	6/25/2025	NON-COMPETING CONTINUATION	$0
														Subtotal = $642,031

Issue Date FY: 2023 ( Subtotal = $573,832 )
2023	2023	RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE	33 W 42ND STREET FL 19	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	000	5	8/10/2023	NON-COMPETING CONTINUATION	$573,832
														Subtotal = $573,832

Issue Date FY: 2022 ( Subtotal = $562,486 )
2022	2022	RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE	33 W 42ND STREET FL 19	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	000	4	8/29/2022	NON-COMPETING CONTINUATION	$562,486
														Subtotal = $562,486

Issue Date FY: 2021 ( Subtotal = $568,673 )
2021	2021	RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE	33 W 42ND STREET FL 19	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	000	3	7/30/2021	NON-COMPETING CONTINUATION	$568,673
														Subtotal = $568,673

Issue Date FY: 2020 ( Subtotal = $622,001 )
2020	2020	RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE	33 W 42ND STREET FL 19	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	000	2	7/17/2020	NON-COMPETING CONTINUATION	$622,001
														Subtotal = $622,001

Issue Date FY: 2019 ( Subtotal = $634,206 )
2019	2019	RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK, THE	33 W 42ND STREET FL 19	NEW YORK	NY	10036	NEW YORK	USA	Vision Research	000	1	8/29/2019	NEW	$634,206
														Subtotal = $634,206

Grand Total All Awards = $3,603,229

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Saccade Target Selection in Naturalistic Visual Search

Award Number: R01EY030669

ORGANIZATION: NATIONAL EYE INSTITUTE

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

PERIOD OF PERFORMANCE START DATE: 09/01/2019

PERIOD OF PERFORMANCE END DATE: 06/30/2025

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