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High-probability grants
According to our matching algorithm, Maria Magdalena Diehl is the likely recipient of the following grants.
| Years |
Recipients |
Code |
Title / Keywords |
Matching
score |
| 2015 — 2017 |
Diehl, Maria Magdalena [⬀] |
F32Activity Code Description:
To provide postdoctoral research training to individuals to broaden their scientific background and extend their potential for research in specified health-related areas. |
Investigating Active Avoidance Circuits With Unit Recording and Optogenetics @ University of Puerto Rico Med Sciences
? DESCRIPTION (provided by applicant): Individuals suffering from post-traumatic stress disorder (PTSD) and anxiety disorders show persistent avoidance of activities, places, or people associated with their traumatic event. Persistent avoidance interferes with routine activities and also prevents individuals from overcoming their fears through extinction. Our goal is to understand the neural mechanisms of avoidance, in light of what is known about the neural circuits of fear learning. We will utilize a platform-mediated avoidance task, in which rats avoid tone-signaled shock by stepping onto a nearby platform. Based on our pharmacological data, the prelimbic prefrontal cortex (PL) and ventral striatum (VS) are necessary for platform avoidance. For this proposal, we will first characterize single unit activity in PL during avoidanc expression (Aim 1), and then determine when these responses are necessary for avoidance by optogenetically silencing PL neurons during specific time periods (e.g. tone onset, platform mounting; Aim 2). This will allow us to test a causal relationship between PL neuronal firing and avoidance expression. We will then determine when VS activity is critical for avoidance by optogenetically silencing VS neurons during the same time periods used for silencing PL neurons in Aim 2 (Aim 3) and reveal how the contribution of VS compares with PL in avoidance expression. These findings will advance our understanding about the differences between the neural circuits of fear and avoidance and their implication for anxiety disorders.
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0.967 |