Sunday, April 24, 2016

How should you study for an exam? Does it matter if the test is essay or multiple choice?

As the academic trend of more and more standardized testing continues, many students have started to look for study tips to make the process less painful. And while there may be some unique tricks, the perhaps best-known ones are also the ones usually under-utilized. The two simple habits of getting a good night’s rest before an exam and quizzing yourself over the material are the most reliable ways to ensure better test performance.

To begin, good test performance isn’t just about what your brain is doing during wake, but also the consolidation and reorganization of memories that happens during sleep. In 2006, Walker and Stickgold published a review of the evidence demonstrating that during sleep, memories are more deeply encoded such that they can be retrieved at a later time. Research supports the hypothesis that during sleep, memories of the day are transformed into a deeper encoded form, which can be more easily accessed and integrated into other previous knowledge. This ability to contextualize new information within previous experiences or knowledge allows for incorporated networks that can help us address multi-faceted problems, such as when taking an essay exam. Additionally, a lack of sleep can actually be detrimental not only because studied material isn’t assimilated as well, but also because sleep deprivation leads to difficulties with attention. Both total sleep deprivation and sleep restriction affect the ability to maintain vigilant attention, a skill absolutely necessary for any sort of exam (Lim & Dinges, 2008). Thus adequate sleep before an exam prevents disrupting mind wandering and has the added benefit of helping consolidate previously studied information.
 
Me in philosophy class freshman year- thank god it wasn't during an exam...
Another strategy for preparing for exams is to use the practice effect. Psychologists have recognized the practice effect for decades now, demonstrating that practicing testing or quizzing yourself improves your ability to call that information to mind later (Sutterer & Awh, 2015). Essentially, when studying it is in best practice to constantly test yourself, or have others make up test questions for you. Beyond the obvious benefit of realizing which subjects aren’t as well engrained, research has shown that testing helps make memories more accessible to be called upon later. This technique can be used both for essay tests (by outlining responses to potential prompts) and for multiple-choice exams. Although the practice effect might require taking some time to meet with a study partner or group and quiz each other, the benefit of such a habit will certainly lead to improved testing scores.

By combining the practice effect with a sufficient night’s sleep, students can better prepare for all sorts of exams they may experience in their academic careers. In the case of these techniques, it doesn’t matter what kind of exam is given, or what material is covered. Although study habit can be difficult to form, sleep and self-testing will lead to a better performance than could be achieved by staying up all night to cram by re-reading notes.


Works Cited
Lim, J., & Dinges, D. F. (2008). Sleep deprivation and vigilant attention. Annals of the New York Academy of Sciences1129(1), 305-322.

Sutterer, D. W., & Awh, E. (2015). Retrieval practice enhances the accessibility but not the quality of memory. Psychonomic Bulletin & Review, 1-11.


Walker, M. P., & Stickgold, R. (2006). Sleep, memory, and plasticity. Annu. Rev. Psychol.57, 139-166.

Monday, April 11, 2016

Why do we forget?

Thanks to brain training companies, it seems everyone is trying to increase his or her memory. It’s easy to argue that better memory can only positively impact your life, but in fact forgetting serves an equally important role in cognition. Specifically, forgetting is necessary for two reasons- forgetting (especially of details) allows for automatized skills and semantic encoding and forgetting is emotionally adaptive to neglect some painful or negative memories.
First let us examine the case of AJ, a woman with highly superior autobiographic memory. If you were to ask AJ what happened 20 years ago on April 11, she could list exactly what she wore that day, along with all of her activities. Her memory is able to retain an episodic account of nearly every day of her life. However, this ability deeply intrudes on her life. She reports, “Most have called it a gift but I call it a burden. I run my entire life through my head every day and it drives me crazy” (Parker et al., 2006, p. 35). Imagine every time you went to the grocery store, you remembered every other instance of a trip to buy milk. It would be cognitively taxing and unnecessary to sustain all these individual memories. And in fact, a study by Logan and Crump (2009) demonstrated the necessity of losing detailed memory in professional typists, who aren’t able to verbalize where keys are located or how their hands are moving. Yet these workers are still extremely proficient in their job, and when they are asked to explicitly focus on what their hands are doing, their performance suffers. These typists do not have detailed memory of every time they sat down at a keyboard, but their skill demonstrates that a composite of all those experiences meshed together have given them their proficiency. Thus, forgetting may allow for details of episodes to be removed so that abstraction and generalized skill learning can occur.
As mentioned before, forgetting not only benefits cognition, but also assists in emotional stability. Joorman and colleagues (2009), among many others, have demonstrated that depression is linked to an inability to forget negative memories. Perhaps if we were able to remember every embarrassing moment and social faux pas, we would be less likely to take social risks or even engage with others at all. Forgetting negative experiences can help us stay open to new social experiences or maintain important relationships. Going back to the case of AJ, she was diagnosed with both depression and anxiety, maybe because she couldn’t forget her negative experiences. Thus, AJ exemplifies that there is no evolutionary benefit to remembering every negative experience.
Memory is unequivocally important for many functions, but forgetting also serves a purpose in maintaining healthy functioning. Without forgetting, we might be less positive about the future and unwilling to take the big risks that advance science and other fields. We would also be unable to garner abstract information from multiple situations or sources we encounter. Like tow sides of the same coin, forgetting and remembering balance each other.




Works Cited

Joormann, J., Hertel, P. T., LeMoult, J., & Gotlib, I. H. (2009). Training forgetting of negative material in depression. Journal of abnormal psychology118(1), 34.

Logan, G. D., & Crump, M. J. (2009). The Left Hand Doesn't Know What the Right Hand Is Doing The Disruptive Effects of Attention to the Hands in Skilled Typewriting. Psychological Science20(10), 1296-1300.

Nørby, S. (2015). Why Forget? On the Adaptive Value of Memory Loss.Perspectives on Psychological Science10(5), 551-578.

Parker, E. S., Cahill, L., & McGaugh, J. L. (2006). A case of unusual autobiographical

            remembering. Neurocase12(1), 35-49.

Thursday, September 24, 2015

Grad School Life after Europe

I can't believe this week marks the beginning of my second year in graduate school. How did last year fly by so quickly? Or my summer Europe adventure for that matter!

 I returned to Chicago last friday, and this monday was the beginning of my fall courses. I certainly didn't give myself much time to get back into the swing of research. I still need to deal with immediate concerns like starting data collection on my master's thesis and figuring out when I need to submit abstracts for conferences. Oh, and there are also classes to contend with. It's a bit overwhelming to think about how much I want to accomplish this year, but I also feel ready to tackle my projects after my 3 week vacation.

As for my grand Eurotrip 2015, here's a run-down of where I went and what I did:

Gdansk(aka Danzig), Poland:
The main street













        Best Experience: Before my trip, I read a historical fiction piece about Poland. One of my favorite historical events mentioned was the Battle of Grunwald (also called the Battle of Tannenburg) where the combined Lithuanian and Polish forces defeated the Teutonic Knights. Well while in Gdansk, I made a side trip to Malbork to see the world's largest gothic castle- the original seat of the Teutonic knights. The red brick walls and towers just seemed to stretch on forever. It was incredible beautiful and epic!
Malbork Castle, aka Marienberg
 
          Worst Experience: I was an idiot and only gave myself 1.5 days to experience the Baltic Sea, the home of Solidarity (first union allowed by USSR), and smaller nearby towns like Sopot. Now I know that I have to go back!


         Unexpected Architecture: I had no idea that Gdansk would feel so Italian, but the city certainly had that vibe thanks to the Flemish and Italian architects who designed the buildings along the main street. The Polish/Renaissance hybrid was beautiful!





Berlin, Germany:



          Best Experience: I took an 'alternative' walking tour where I learned about the grunge/squatter history of the city, and how the young bohemian lifestyle is still going strong. Basically, I got to meet cool people, drink 1 euro beers, and see incredible graffitti! It helped me understand Berlin after the cold war.

          Worst Experience: While running (yes, literally) from the Reichstag building to where my walking tour would start, a wasp stung me on the neck! I got some ice to keep the swelling down, but what really helped was the 'train beer' as we called it. (You can buy beers along the train platforms and just openly drink in public as you go about your business).
          Best Sightseeing: In my mind, there are 2 main sights that you really shouldn't miss when going to Berlin. The first is the Reichstag building, which is where Germany holds Parliament. You can go up in this beautiful glass dome and listen to an audioguide that describes other famous buildings you see as you ascend the spiral walkway. The other must-see is the Monument to the Murdered Jews. It's a memorial that just has to be experienced. There's no other way to put it.
Looking into the dome from the walkway

I've never experienced a monument like this
Monument of the Murdered Jews



Munich, Germany:

Oktoberfest were for sale EVERYWHERE in Munich

          Best Experience: Beer. Duh. Granted, I visited before Oktoberfest so maybe I didn't get the full Munich experience but I'm quite pleased with how this leg of my journey went. I spent at least one meal a day in a BrauHaus, sitting at a long wooden table, meeting locals who are happy to chat you up and share a pint with you. The community was just fantastic.
Lunch at Hofbrauhaus
 


          Worst Experience: I will say, Munich is an older crowd. There were many times where it felt like when my dad and I go out for beers with his friends. I was generally the odd-man out simply by being young and female. However, everyone was just so warm and lovely that I can't really complain.
          Most Unique Museum: I probably should have realized this, but BMW stands for Bayern MotorWerke so of course the massive BMW plant is in the center of Munich. (Bayern is German for Bavaria, the region Munich is located.) Attached to the plant is a beautifully designed showroom/souvenir stop and a museum about the history of the company. I wasn't really sure what to expect, but the architecture of the museum was truly unique and I enjoyed seeing all the old cars. Certainly worth a visit if you need to break up all the beer drinking you're doing.
 




Prague, Czech Republic:
Gotta love beer tastings in Czech Republic, home of Pilzen

          Best Experience: Honestly, Prague was exciting for me because I finally got to meet up with my best childhood friend, Courtney (you can check out her blog here). But besides being able to go on a childhood dream trip with my best friend, we also got to try actual absinthe! The mildly psychoactive kind! The art of serving and pouring a sipping glass of absinthe is really quite lovely and always worth a try.

          Worst Experience: In some ways, I feel like I didn't really experience Prague. We primarily wandered the historical old town and castle hill, which was pretty full of tourists. I would like to have seen more of the city, but we didn't have time.
          Strangest Church: Just outside of Prague is a small town called Kutna Hora. There, you will find the Sedlec Bone Church where 400,000 sets of bones from plague and war were crafted into religious pieces of art in the 14th century. I've never seen anything like it.








Yes. these are all real bones



Vienna, Austria:
Vienna is an expert at fine living! Here's the famous Sacher Tort

          Best Experience: Because we were in Vienna, of course we had to go to the opera! It just seemed like the ideal thing to do! We stood in line for standing tickets, and after paying 3 euro, walked into one of the most lavish performing halls I've ever seen. It was worth paying just to get in! I felt very classy, even though we did have to stand for the whole opera. Next time maybe we'll get real seats.
We saw Rigelotto
          Worst Experience: Overall, Vienna did seem a bit old a stuffy. It didn't have the young creative vibe found in many of the other cities we visited. While I loved learning the history of the Austria-Hungarian Empire, it's not exactly a hip place to visit.
          Most Ornate Palace: During our final day in Vienna, we went to the summer palace of the last hereditary rulers of Austria.Schonbrunn Palace is an 18th century masterpiece of ornate filigree and opulent design. I could not believe how much gilding I saw EVERYWHERE. And the gardens were massive beyond belief! It perfectly demonstrated the power Vienna held over much of Europe for so long. Plus, you know, hedge mazes are way too much fun.
HEDGE MAZE!




Budapest, Hungary:
On Castle Hill


          Best Experience: Ok, I've really really tried but I can't narrow my days in Budapest down into one top experience. The best I can do is cut it down to 2 experiences. The first was the Hungarian wine festival going on in the castle grounds. That's right, I got to try delicious, cheap wines while wandering around the rebuilt castle overlooking the pest side of the city. It was just a magical experience! And I discovered a few new wines (particularly aszu) that I will be hunting for in America. My second top experience was exploring the ruin pubs/bars. Basically, they take old abandoned buildings, fill them with eclectic art, add a bar and open shop! The first one we went to had over 30 rooms with 3 different dance floors across the 3 stories! It was massive and funky and unlike anything I've ever seen. The others we visited were cool too, but this one was by far the best.
Ruin Pub called Instant
          Worst Experience: Budapest was probably the most interesting city we visited, but it wasn't exactly easy to leave. We were somewhat close to being caught in the border closing due to the Syrian immigration crisis. We had to go to the Keleti train station at 6:45am to purchase tickets to Krakow (you couldn't get them online). We actually ended up walking through the tent city that had been erected by the immigrants. We found out later that Hungary closed the border with Austria temporarily, and Germany closed the border with Austria for a bit. Clearly, we were smart to get out when we could.
Instant
          Most Relaxing Experience: Budapest is built along a natural fault line such that there are tons of hot springs peppering the city. These springs have been built upon to create natural hot baths where tourists and locals alike go to relax and unwind. Courtney and I decided to go to the oldest of them, Rudas baths. It was build by the Turks over 500 years ago and little seems to have changed since then. We went for a night bath when it opened at 9pm and we stayed out well past midnight, just enjoying a good soak. I've never felt so utterly at peace.

I might have gone to the wine festival more than once....



Krakow, Poland:
The Krakow Palace
          Best Experience: You would think with several weeks of walking around ancient cities, I would get tired of the Old Town portions of the cities. Not so! At least, definitely not in Krakow! Here is a city that survived the bombings of WW2 relatively unscathed. The old town was still in the same condition as it was so long ago. Granted, it's not all perfectly historically accurate. When the moat surrounding the old town started to fall apart, they turned it into a circular park called the planty to provide extra green space to their citizens. My favorite part of the old town was the St. Mary's Bascilia. I can honestly say I have never seen a more beautiful church. The sky blue painted ceiling and golden ribs gave way to vibrant stained glass and ornately carved biblical figures. The amount of time and energy it must have taken to complete astounds me.
I saw so many churches, but this was by far my favorite


          Worst Experience: I could have eaten even more pierogis than I did, and that's the biggest complaint I can muster. I ate traditional Polish food at least once every day and I always felt like I could eat even more. Thank goodness my wonderful boyfriend got me a pierogi cookbook so I can continue my addiction at home.

          Most Moving Experience: I initially didn't want to go to Auschwitz, but I'm so thankful that I did. It was the most emotionally moving experience of the entire trip. Just walking the barracks and hearing the tour guide talk about the every day cruelties and killings was so hard. I teared up more than once. And I don't think I actually understood the scope of the camps until I saw their enormity for myself. Hearing Auschwitz-Birkeneau described is nothing like going yourself. I'm so glad I did take a day trip to see this painful yet vital part of history.
Auschwitz-Birkeneau

Auschwitz Mother Camp



Warsaw, Poland:
That's right, it's the childhood home of Marie Curie
          Best Experience: Beccause of some changes in our travel schedule, we only got to see Warsaw for one full day. I just didn't realize how much I wanted to see until it was too late. So really, I feel like I can't make a lot of judgements about Warsaw. I will say that I really enjoyed seeing "The Battle of Grunwald" by Jan Matejko. He was a famous Polish painter who was interested in depicting scenes from Poland's past (not always completely accurately) to rally the nationalist spirit. his work becames especially meaningful during the partition of Poland and during the invasion of Poland by Germany during WW2. I had read a lot about his work, so it was wonderful to actually see it in person.
          Worst Experience: Wouldn't you know it? On our last day before the trip came to a close, someone stole Courtney's film camera and laptop computer from her locked locker. Trust me, this is the worst possible way to end a trip. She had done everything right to keep her stuff safe, and still someone broke in and took her computer. We spent our last hours in Poland trying to file a report with the police and figure out what else we could do. It was just so frustrating that we couldn't do anything about it.
          Most Unexpected: I don't know why, but I didn't think Warsaw would feel so much like Berlin. They are both cities that were hit extremely hard during WW2, and both of them were rebuilt under strict Soviet watch. I think that changed something in the character of these cities. Once Russia pulled out of the Eastern Block, both cities seem to have grown in a similar manner. If I had the time, I bet I would have found a similar vibrant street art/alternative youth culture in Warsaw. I suppose I'll have to go back and test that theory sometime soon!
The truly massive Battle of Grunwald by Jan Matejko

Tuesday, August 25, 2015

How to talk science without sounding like a pompous jerk

The class I am taking this summer is rather unique, though it certainly shouldn't be. I'm trying to develop lifelong skills necessary (in my opinion) for success in academia, but they are skills woefuly ignored. Specifically, I'm trying to learn to be a better communicator with those outside my field of research.
Video interviewing at Medill

As students in classes taught by famous, yet boring professors can attest- being a great researcher does not mean you are a great communicator. It doesn't even mean you are a good one.  Northwestern University offers a wonderful program to help turn this pattern around, called 'Ready, Set, Go!' The aim of this program is to help scientists and researchers across all disciplines to disseminate their work to the broader world. It's a surprisingly daunting task.

For one thing, content really does matter. On my first day with the other students, I realized that my research is at somewhat of an advantage. I study human systems (memory and sleep) so they are easier to understand intuitively. My classmates studying nanoparticles or non-newtonian fluids have a lot more jargon to deal with the complex systems they study. Learning to cut back the three-plus syllable words is only the first step. We have also learned how to use analogies, craft stories, and pull approachable aspects of our research to the forefront. All of these pieces must fit together to create a coherent story.

Beyond storytelling, there are also other aspects to consider. For instance, this week we spent our class time in the Medill television studio to record interviews on our research. It quickly became apparent that outside of knowing the research, we had to know how to turn a question towards a topic we want to discuss and and leave hooks for other points you want to make, so the interviewer can pick them up.

And of course, we must remember the physical aspects of a tv interview. To look like a credible source, you need to dress the part. Wearing bold colors (but no patterns), sitting at the edge of the chair to avoid slumping, and wearing a suit jacket are all tricks that you only realize after watching yourself on the screen. Although I still feel there are many things I'd like to tweak on my interview, I think my last take was a solid of example of how to put some of the skills I've learned into action.



Of course, the class isn't quite over yet. I will be making a final video where I will explain my research in full, and hopefully get to play with some neat video editing tools. I will certainly be posting that video, along with a recap, when the summer ends.

But for now, I'm actually going on holiday to Europe. I'll try to post updates of my trip here, though don't expect too much science- I'll mostly be enjoying local culture and food!

Friday, April 17, 2015

Modelling Biological Processes using Technology

I was recently at a lecture in which the presenter referred to the "circuitry of long term memory" and I was stuck by how often we refer to anatomy as a physical system. Talking about circuits and pathways and such leads one to think in almost mechanical terms on how our organic bodies function. It's a helpful short cut to explain things in terms that are easier for a layman to follow.

It's a practice especially prevalent in neuroscience, although that is the area with which I am most familiar. In any case, I realized that this trend has been going on for quite some time and is often dependent on the current state of our technology. Take for example how the the famous Galen of the Roman Empire thought the blood system worked. "Galen incompletely perceived the function of the heart, believing it a "productor of heat", while the function of its affluents, the arteries, was that of cooling the blood as the lungs "...fanned and cooled the heart itself". Galen thought that during dilation the arteries sucked in air, while during their contraction they discharged vapours through pores in the flesh and skin."

This pumpe system as Galen saw it, was based on the ancient Roman understanding of heating and cooling similar to their intricate water ducts system.  The technology of the day formed how people thought the human body functioned. In modern lingo, cognitive scientists often speak of 'serial/parallel processing' or 'streams of information' and this all calls to mind the inner workings of a computer.

I have to wonder, in the future when we have some new fantastic technology will we compare it to another anatomical feature of ourselves? Or is it our embodied experience that allows us to come up with such technology because we are actually mirroring it after ourselves?