Saturday, May 20, 2017

Gillian Thornton

Hello to anyone who has happened across my blog. Thanks for visiting The PTSDetails: Brain Plasticity and Chronic Stress. This is where I will be documenting my progress through my Senior Project. An explanation of my project can be found in my Senior Project Proposal but I’ll do my best to introduce you to it briefly in this blog post.

As a BASIS Scottsdale senior, I will be going off campus during the third trimester of school (from around February 6th to April 14th) and interning in a lab at ASU. I am lucky to be working in Dr. Cheryl Conrad’s lab, Behavioral Neuroscience Research in Stress. The purpose of their research is to look at inhibitory cellular circuitry on chronic stress and resilience. Working towards this goal, Dr. Conrad and her team have published many research papers (a good chunk of which are available on their website which I have linked above).

Before my initial interview I read one that I found particularly interesting titled “Chronic stress enhanced fear memories are associated with increased amygdala zif268 mRNA expression and are resistant to reconsolidation.” The title sounds quite scary (and I commend you if you made it through the whole thing) but how I’d summarize it is they studied rat models for PTSD, pairing Pavlovian fear conditioning with chronic stress, to investigate the mechanisms underlying fear memory formation, extinction, and re-consolidation. They hoped to understand how a robust fear memory can be weakened so that a previously traumatic memory can become less distressing. I’d really recommend checking out that research paper if you’d like to get an idea of the work they will be doing while I’m interning.


Now, more specifically about me, my main activities as an intern (exactly as they were documented in order to be approved to work in the lab) will be working closely with a graduate student, picking up, holding, and weighing mice, assisting putting mice in restraints, cutting perfused and fixed brain, and using a microscope to look at brain slices. So what does that mean exactly? Basically, I’m going to be helping out when and wherever needed and absorbing as much experience as I can. This will be my first real time in a lab so I am really excited to get started and am happy that I will be able to document my thought process as I go along.


I’ve always been really interested in Biology and Psychology. And, being a high school student, I’ve had my fair share of stress. Throughout my high school career I have found that knowing your optimal stress balance is essential to succeeding (you want enough so that you are driven to work hard, but not too much so that you avoid burning out). Therefore, working in a lab that focuses primarily on stress coincides perfectly with my interests. I’m really excited to begin, and, if you’d like to follow along, feel free to subscribe by email to receive updates (a gadget to do so is off to the side). Thanks for reading!

16 comments :

  1. Gillian! Your project seems really interesting and I can't wait to follow you on this educational journey. I too am very interested in Psychology and am very excited to find out what conclusions you will come to. Also, I love how your background in a pretty brain instead of a jello-looking one. Keep up the scintillating work you snazzy girl.

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  2. Hi Gillian! Can you believe the time has come for the real life research component to begin? I'm excited to see what your role in the lab becomes and what questions you continue to come up with, and hopefully answer along the way!

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  3. Hi Gillian! As a student currently studying psychology I think the idea of brain plasticity and how it interacts with stress is an awesome topic to delve into, especially as it is concerned with PTSD. I think an interesting idea to consider while you are conducting your project would be the ways that people, or animals, are induced to forget or suppress traumatic memories (behavioral therapy, etc.). I am also interested to learn how/if memories associated with fear affect brain plasticity and how these effects in the long run can be especially devastating. I look forward to learning more about the project in the coming weeks, especially if it includes clever puns (like the one you included in the title).

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  4. Hey Gillian! This is a great post. Not only did you thoroughly explain your project, you simplified it just enough so anyone reading it, regardless of their knowledge on biology and psychology, could understand it, and for that, I applaud you. I am interested to see how your research progresses via each post, and am excited to see what kinds of puns are in store for the titles of each post!

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  5. Hey Gillian!

    Excellent introduction to your research project! Are you going to be the one guillotining the mice? If so, that's a shame :( Are you going to be radioactively labeling any brain components to elaborate on the function and coordination of that specific brain part? What stresses are going to be introduced to the mice? Also, how did you again your connection to this research lab since this sounds really awesome? I know that this will be very enjoyable to experience and follow up on for everyone!

    Best of luck!

    Jakob Krygier

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    1. Hi Jakob!

      Thanks for the thoughtful comment. Luckily, I will not be the one putting the mice down as I'm sure that's quite a delicate process. Instead, I will be helping introduce various stressors. The primary one that we will be working with is a mess wire restraint. In terms of the brain, I believe that we will be looking at the shape and size of neurons, so we won't have to label any specific brain components. When I initially toured the lab, they had many drawings of nerve cells, and I'll be able to add to that collection.

      While trying to find a site placement for this project, I reached out to a bunch of different locations. I'm going to be attending ASU next year and am really interested in Psychology, so I looked at some of their labs. I was most excited about the research that Dr. Conrad was doing, and she was really receptive to working with me. So that's how this all started.

      I'm happy you're following along :)
      Gillian

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  6. Hi Gillian!

    I love that you are focusing on the brain and PTSDs. However, many people don't choose medical fields related to the brain. What drove you to choose the brain for your research project? What sparked your interest in the psychology behind it?

    I look forward to reading your weekly blog posts and good luck in the lab!

    Shivalee Nigam

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    1. Hi Shivalee!

      I'm so happy that you're following along. I've been interested in Psychology (related to concepts like motivation and stress) for quite a while. I've always loved watching Ted Talks about the subject. I formally learned more about it in 11th grade when I took AP Psychology and I especially loved learning about the brain and the many different mental disorders. I even found myself looking up more about them outside of the classroom, so focusing on the brain and PTSD for my senior project seemed perfect.

      Thanks again,
      Gillian

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  8. Hey Gillian!

    I really loved your first blog post! You seem to have a lot of enthusiasm for this project, and I especially like that your senior project is a blend of two things you are passionate for. What drove you to consider this project above all else, and how did you come across this amazing opportunity? I'd also really like to work in a lab one day, and your work really interests me. Can you give me some idea of what it's like to work in a lab, and specifically what it's like to handle mice in the lab?

    Thanks,

    Anya Wahal

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    1. Hi Anya!

      When I heard about the senior project, I immediately knew that I wanted to do something with Psychology as it's what I was most interested in at school. Therefore, I just started googling locations that might offer opportunities to high school students. I even spoke to a family friend who is a clinical psychologist. I wasn't hearing back from many places that I reached out to, so, knowing that I was going to be attending the college next year, I looked for labs at ASU. Dr. Conrad's research was most interesting to me, and she was really happy to have a high school student help out in the lab. That's how I secured the internship and learned that all it takes is a well thought out email to gain access to new opportunities.

      This will be my first time in a lab, so I will make sure to document what it's like. I was initially hesitant to work with mice and rats and voiced this concern to my on site mentor. It's clear that they are aware that it's a sensitive issue and that the utmost care is taken to ensure that the rodents are treated humanely. Earlier today, I was reading packets and taking tests to get approved to work with animals. I feel much better now that I know treating the animals kindly is their main concern. I will definitely document what it's like to work with mice as it's something I want to learn from.

      Thanks so much and I hope you can learn from my experiences,
      Gillian

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  9. Hey Gillian! Your blog is looking good so far! I'm extremely interested in Neuroscience. AP Psychology has taught me some about fear responses and stress influence in the brain, and I found it particularly engaging. I'm very excited to follow your blog and learn more!

    Jacob McCormick

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  10. Hi Gillian!
    I enjoyed your first post and I can't wait to see more! To be able to help someone suffering from PTSD by weakening a specific memory is incredible. I think it is interesting that you are considering the relationship between brain plasticity and stress, specifically how a traumatic experience effects the brain and how to reduce the effects of that traumatic experience. However, how would weakening a traumatic memory impact other parts of the brain, or would it have an impact at all? I hope you have a wonderful experience working in a lab and studying parts of the brain!
    Good luck!
    Jileena Mehta

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    1. Hi Jileena,

      That's a great question. The parts of the brain that Dr. Conrad and her team were focusing on in their research article are the amygdala and the hippocampus. The amygdala deals with fear responses, and the hippocampus is involved in memory formation. They didn't mention any other parts of the brain, so I'm unsure as to the impact that weakening a traumatic memory would have on them. I do know that the amygdala and hippocampus are the main regions involved, so it probably doesn't have a large impact on other parts. I will be sure to look more into that though.

      Thanks for following along,
      Gillian

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  11. Hi Gillian,

    Sorry for the late comment. I was wondering, was the conditioning the scientists used classical conditioning, or is it a different type?

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    1. Hi Bhavik!

      Sorry I didn't see your comment earlier, but that's a great question. Dr. Conrad and her team are not using conditioning in their lab as that is pairing a neutral stimulus with either an adverse or pleasurable one. There's no specific stimulus that they are attempting to pair with being stressed. Instead, they are stressing the mice in order to see the impact on the brain. Hopefully that makes sense.

      Thanks for your comment,
      Gillian

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