How Jellybeans Can Reveal Neuroscience to the Public (2024)

Studying brain science in the 21st century requires crossing traditional boundaries, and with that comes the need for an interdisciplinary approach.

The fields of psychology, neurobiology and biomedical engineering all approach research questions from different perspectives, each with a unique way of trying to understand how the brain works. Neuroscientists of the future should be able to integrate these differences to build new and better solutions.

For example, the problem of how a person moves around in the world could be approached by examining the mechanics of how her arm reaches for a target--an engineering problem. Alternatively, this question could be examined in healthy adults compared to thosewho have a particular disease that affects movement, like Parkinson's, which may clarify how the brain works differently when damaged--a neurobiological question. Finally, a brain scientist could study how the brain makes decisions about movements in response to a disturbance, like an opposing force--from the standpoint of a cognitive psychologist.

Ideally, cutting-edge neuroscience would draw expertise from more than one of these fields to answer hot topic questions about the brain.

Minding what you say

Many graduate students find that discussing their research in this sort of detail with other scientists both in and out of their fields can be a bit nerve racking.

Now imagine trying to talk about neuroscience research with people who may have little background in the subject--like your parents, friends, children or someone who walks in the door at your local science center--and getting them to understand and appreciate it.

Recently, I partnered with seven of my fellow graduate students to establish a novel program that trains neuroscientists to communicate with the public.

As part of the Cognitive, Computational and Systems Neuroscience (CCSN) pathway at Washington University, funded in part by a National Science Foundation (NSF) Integrative Graduate Education and Research Traineeship (IGERT) programgrant, we worked with staff from the Saint Louis Science Center (SLSC) to create a science communication course targeted towards audiences with little understanding of neuroscience.

Graduate students in neuroscience, psychology and biomedical engineering programs were invited to participate, and, in the first year, eight students attended three professional development workshops taught by Science Center staff.

"The Real World - Neuroscience"

The curriculum focused on the audience and included presentation language and tools for creating demonstrations and exhibits about our research lives and discoveries. Out of these workshops emerged an event highlighting brain research that debuted last October during SciFest08. The annual Science Center festival brought nationally and internationally renowned scientists to present their research to the public, and we later repeated the effort as part of the Science Center's annual NeuroDay event during national Brain Awareness Weekin March 2009.

"The Real World - Neuroscience" featured our stories of research at Washington University and our lives in St. Louis. As visitors entered the exhibit, they saw a behind-the-scenes video which followed each of us around a lab with commentary about what it means to be a scientist.

Inside the exhibit, we led hands-on demonstrations that introduced neuroscience concepts in fun and engaging ways. For example, one student, Hannah Arnson, who studies olfaction (our sense of smell), used jelly beans to show participants how olfactory sense is an important part of the experience of taste.

While our tongues sense only five distinct flavors, we have thousands of olfactory receptors in our nose, which can be activated by odor chemicals in the foods we eat. By eating jelly beans with their noses pinched closed and then again with their noses open, participants literally tasted the difference olfaction makes! This demonstration enabled Arnson to then discuss aspects of her research on olfactory coding.

Other demonstrations had graduate student experts leading visitors to monitor the electrical signals generated by their own eye movements, to train a virtual rat using classical conditioning, to examine healthy and diseased human brain specimens, and to learn how our internal clocks cope with jetlag.

It's all about perception

I was often struck by the enthusiasm of visitors wanting to know more about brain science and by their curiosity about what scientists are really like. Any perceived barriers in understanding were not ones of motivation or interest, but rather those associated with jargon.

Comments from visitors like "I had no idea research could be fun" or "I'd like to do that," plus insightful questions about our work on the brain, gave us confidence that we had effectively shared our story. By learning to speak with our audience, we conveyed our neuroscience research and enthusiasm for discovery without "dumbing down" the content. Communication is an important and often overlooked aspect of being a successful scientist.

We plan to continue this training program, with 13 new graduate students enrolled this summer. We have already been invited to present our "Real World" at several events in 2009.

I believe that by working with theScience Centerand its visitors, we have gained both an appreciationfor the time and effort that goes into engaging the public in scientific research and alsothe knowledge that engagement is a worthwhile pursuit that improves people's understanding and support of our work.

-- Alexis B. Webb, Washington University in St. Louis abwebb@artsci.wustl.edu

This Behind the Scenes article was provided to LiveScience in partnership with the National Science Foundation.

How Jellybeans Can Reveal Neuroscience to the Public (2024)

FAQs

How many jelly beans are in the jar in psychology? ›

A classic demonstration of group intelligence is the jelly-beans-in-the-jar experiment, in which invariably the group's estimate is superior to the vast majority of the individual guesses. When finance professor Jack Treynor ran the experiment in his class with a jar that held 850 beans, the group estimate was 871.

How to guess how many jelly beans are in a jar? ›

STEP 1: Use the top and bottom layers to figure out the average number of jelly beans per layer. STEP 2: Estimate the number of layers in the jar. (Use the dotted lines). STEP 3: Multiply the average number of jelly beans per layer by the estimated number of layers.

What will you taste like if you hold your nose and start chewing a watermelon jellybean? ›

"If you hold your nose and start chewing a jelly bean taste is limited, but open your nose midway through chewing and then you suddenly recognize apple or watermelon." That's because as you chew, you're forcing air through your nasal passages, carrying the smell of the food along with it.

What is the jelly bean jar activity? ›

The Jelly Bean Problem gives children a jar of jelly beans and clues for them to solve the problem of how many jelly beans of each colour are in the jar and how many in total. Included is a solution sheet with reflection questions for students to reason how they found or why they didn't find the solution.

What jelly beans symbolize? ›

The yellow jelly bean reminds us of heaven. Psalm 115:3, “Our God is in the heavens, and he does as he wishes.” The black jelly bean reminds us of sin. Romans 6:23 tells us, “For the wages of sin is death, but the free gift of God is eternal life through Christ Jesus our Lord.”

What is the jelly bean count experiment? ›

He is also known for his jelly bean Experiment in 1987, when as a finance professor, he brought a jar into his class that held 850 jelly beans and asked the students to guess the number of beans inside. The group estimate was 871, which was about 2.5% off; only one of the 56 people in the class made a better guess.

How to win the jar guessing game? ›

"First, estimate the size of the jar," instructs Brujic. "Then look to see if all the candies are the same size. If they are, take 64 percent of that volume and divide it by the size of the candy to get the total number that would randomly fit inside.

How to guess the amount in a jar? ›

So, multiply the radius number by itself, and, to get a rough estimate, multiply this number by 3. EXAMPLE: With a radius of 5, your formula would be: Pi x 52 = 3 x 25 = 75 So, a single layer of items in the jar should be about 75 items.

Why does watermelon taste weird to me? ›

Taste: Even if the exterior looks okay, there's a chance that the fruit could have gone bad. If you bit into a piece of watermelon that looked and smelled fine but its tastes sour or has a fizzy sensation on your tongue, throw it out.

Why does my watermelon feel like jelly? ›

Answer. This sounds like overripe watermelon. When a watermelon goes past its prime it becomes mealy, may develop cavities around the seeds and the taste may be unappetizing.

What to eat with watermelon jam? ›

A wonderful watermelon jam that will keep the flavor of summer handy all year. Great on toast or English muffins.

What is the jelly bean theory? ›

John Maynard Keynes. If one asks a large enough number of people to guess the number of jelly beans in a jar, the averaged answer is likely to be very close to the correct number. True, occasionally someone may guess closer to the true number.

What is Jelly Bean guessing game? ›

About this item. Jelly beans guessing game for an Easter party! Fill a jar with jelly beans and have people guess how many are in the jar.

What is the red jelly bean rule? ›

The rule stating that food had to contain 10 percent DV without fortification of one of the six nutrients (Vitamin A, Vitamin C, Iron, Calcium, Protein, and Fiber) is commonly referred to as the "jelly bean rule".

What is the jam jar analogy mental health? ›

[Jar Metaphor:

We are like an empty jar. We get filled up with genetic factors (yellow balls) and Environmental factors (orange triangles). With just the genetic factors in the jar, we are unaffected. Over time we accumulate more environmental factors, which make us more vulnerable.

How many jelly beans are in the jar Life is Strange? ›

Read her thoughts with Alex's powers in Life is Strange: True Colors to find out that she is nervous about the guess being so close. Talk to the man again, and choose "700" as Alex's new guess. Reading the lady's thoughts one more time will result in her revealing the exact number of 731 beans.

What was the Jenness bean Counting Experiment? ›

Jenness (1932) conducted one of the earliest experiments examining conformity. He used an ambiguous situation that involved a glass bottle filled with 811 white beans. His sample consisted of 101 psychology students, who individually estimated how many beans the glass bottle contained.

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