Vonetta M. Dotson, Ph.D. - US grants
Affiliations: | Clinical and Health Psychology | University of Florida, Gainesville, Gainesville, FL, United States | |
Clinical and Health Psychology | Georgia State University, Atlanta, GA, United States |
Area:
aging, depression, fMRIWe are testing a new system for linking grants to scientists.
The funding information displayed below comes from the NIH Research Portfolio Online Reporting Tools and the NSF Award Database.The grant data on this page is limited to grants awarded in the United States and is thus partial. It can nonetheless be used to understand how funding patterns influence mentorship networks and vice-versa, which has deep implications on how research is done.
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High-probability grants
According to our matching algorithm, Vonetta M. Dotson is the likely recipient of the following grants.Years | Recipients | Code | Title / Keywords | Matching score |
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2004 | Dotson, Vonetta M | R03Activity Code Description: To provide research support specifically limited in time and amount for studies in categorical program areas. Small grants provide flexibility for initiating studies which are generally for preliminary short-term projects and are non-renewable. |
Double Jeopardy: Cognitive Decline in Depression &Aging @ University of Florida DESCRIPTION (provided by applicant): Depressive symptoms are prevalent adults, and both aging and depression are independently associated with impairments in cognitive functioning, particularly in the domain of "executive" control. The primary aim of this project is to determine if older depressed adults are at "double jeopardy" for executive dysfunction due to an additive or multiplicative effect of aging and depressive symptoms. Study methods will examine younger (ages 18-30) and older (ages 65-80) adults while performing a novel cognitive task designed to temporally dissociate components of cognitive control. High-density event-related potentials (ERPs) will be used to dissociate strategic processes supporting the implementation of cognitive control, and evaluative processes supporting the detection of processing conflicts and performance monitoring. The specific aims are to: 1) determine if aging and depressive symptoms are associated with declines in cognitive control as assessed using a "cued-Stroop" task; 2) temporally and anatomically dissociate component processes associated with cognitive control using ERPs and determine if aging and depression differentially affect these processes; and 3) determine if the combined effect of aging and depression on cognitive control is additive or multiplicative. The specific hypotheses motivating the proposed research are that: 1) both increasing age and depressive symptoms contribute to declines in cued-Stroop performance; 2) increasing age is associated with impairments in strategic aspects of cognitive control (mediated by the dorsolateral prefrontal cortex), and depressive symptoms are associated with impaired evaluative processes (mediated by the anterior cingulate cortex); and 3) older depressed adults exhibit significantly greater declines in cognitive control than older non-depressed adults or young depressed adults. Accomplishing the aims outlined in this proposal will provide the foundation for future studies examining the effect of aging and depression on cognition and activities of daily living. |
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2015 — 2016 | Dotson, Vonetta M | R03Activity Code Description: To provide research support specifically limited in time and amount for studies in categorical program areas. Small grants provide flexibility for initiating studies which are generally for preliminary short-term projects and are non-renewable. |
@ University of Florida ? DESCRIPTION (provided by applicant): Anhedonia, decreased motivation for and sensitivity to rewarding experiences, is present in at least 1/3 of community dwelling older adults and is a feature of various psychiatric and neurological disorders, including late-life depression and Parkinson's disease. Anhedonia is associated with cognitive deficits, as well as poor clinical outcomes and increased mortality. Recent research suggests that anhedonia comprises motivational (reward wanting) and consummatory (reward liking) aspects. However, previous research on anhedonia has failed to dissociate these components, which may explain the contradictory findings in the literature. Recently, the Effort-Expenditure for Rewards Task (EEfRT) was developed in an effort to dissociate reward components in anhedonia. The EEfRT is an effort-based decision-making task that measures reward wanting, in contrast to commonly used anhedonia questionnaires, which focus on reward liking. This novel task may provide a useful measure of components of anhedonia in older adults and in different patient populations. Thus far no data is available on this task in elderly individuals, [including cognitiv and neural correlates of components of the task in young and older adults.] Given the paucity of research on the neurobiology of anhedonia, cognitive neuroscience studies using this task could fill a gap in the literature. We are developing a line of cognitive neuroscience studies examining ahedonia in community-dwelling older adults and in late-life depression and Parkinson's disease. In order to gather preliminary data for larger grant applications to fund these projects, we are proposing a study that will involve gathering pilot behavioral and functional magnetic resonance imaging (fMRI) data in young and older adults performing the EEfRT task. Understanding the brain mechanisms underlying anhedonia in older adults and in different patient populations will have a translational impact by elucidating biological targets for treatment. |
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2021 — 2026 | Plis, Sergey Dotson, Vonetta Calhoun, Vince Turner, Jessica (co-PI) [⬀] Morris, Robin (co-PI) [⬀] |
N/AActivity Code Description: No activity code was retrieved: click on the grant title for more information |
Crest Center For Dynamic Multiscale and Multimodal Brain Mapping Over the Lifespan [D-Map] @ Georgia State University Research Foundation, Inc. Center for dynamic multiscale and multimodal brain mapping over the lifespan |
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