Area:
Aging, cognitive neuroscience, sensory neuroscience, neuroanatomy
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High-probability grants
According to our matching algorithm, Daniel T Gray is the likely recipient of the following grants.
Years |
Recipients |
Code |
Title / Keywords |
Matching score |
2016 — 2018 |
Gray, Daniel |
F31Activity Code Description: To provide predoctoral individuals with supervised research training in specified health and health-related areas leading toward the research degree (e.g., Ph.D.). |
Neurobiological Basis of Age-Related Deficits in Attentional Shifting and Monitoring
Abstract Attentional control refers to an individual's ability to selectively attend to behaviorally relevant stimuli and ignore behaviorally irrelevant stimuli. There are at least two separable components to attentional control, shifting and monitoring, which are each driven by different neural networks in the mammalian prefrontal cortex. During normative aging, both the shifting and monitoring components of attention are impaired in humans, and these alterations negatively impact life quality since the execution of many basic skills is dependent on these mental processes. The neural network level changes that lead to impaired attentional control are poorly understood. This is in part due to the current lack of animal models that can provide neural data with superior spatial and temporal resolution to clarify the functional imaging and EEG data available in humans. Recently, our laboratory has shown that aged macaque monkeys experience performance deficits on tasks requiring attentional control in a manner similar to that which is noted in older humans. The experiments proposed here test the hypothesis that networks of inhibitory neurons in the dorsolateral prefrontal cortex of macaques are altered during normative aging to give rise to declines in attentional control. Chronic extracellular tetrode recording devices and novel behavioral paradigms will be used to track covariation in behavior and underlying neural responses in the non-human primate. The results from these studies have the potential to identify specific cellular components impacted by aging that give rise to declines in attentional control, a hallmark of cognitive aging in humans.
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