Are you fast enough to catch a grasshopper with your bare hands? Might be tricky, because grasshoppers are quick to react to potential threats! This reaction time is thanks to a very specific, visual neural circuit in the grasshopper. By recording from this circuit in a living grasshopper prep, we can record the spikes that […]

Hi, I’m Ilya Chugunov, a rising sophomore at UC Berkeley, majoring in Electrical Engineering and Computer Science. My hobbies include: hiking, archery, and pondering deeply about why my code doesn’t compile. As a member of the Backyard Brains fellowship this summer I will be studying the fascinating, and possibly unseen, behaviors of the California Two […]

Hi, I’m Zach Robinson. I’m a senior in Computer Science Engineering at the University of Michigan. I’m working on the Songbird Identification System. This is an ongoing project that was started in January 2017 and will continue development throughout the year. Thus far we have developed an initial classifier model using machine learning, setup a […]

It’s early on a warm Ann Arbor morning and the office is buzzing with excitement! Our Summer 2017 research fellows are here! Today, our fellows are getting to know the staff and space at Backyard Brains, but more importantly, they’re planning, because for the next ten weeks they will be working on neuroscience and engineering […]

Call for Undergraduates in Biology or Engineering Fields Do you have an interest in neuroscience? Do you like squids or dragonflies? Electrical, Mechanical or Computer engineering? Want to develop your own experiments and publish your results?  Learn to communicate with the public?  Maybe even all of the above?  Then you’re in luck! The Backyard Brains Summer Research […]

DESCRIPTION Update June, 2017: My paper was published! Check it out here in JUNE (Journal of Undergraduate Neuroscience Education). … Why are grasshoppers so hard to catch?! I aim to study the neuroscience behind this question by replicating past studies on grasshopper vision. Grasshoppers can sense an approaching object and quickly hop away to avoid collision with the object […]

With the ideal ITI determined, I can move on to the set of core experiments: testing to see how the DCMD neuron behaves when simulated black balls of different sizes and velocities approach the grasshopper’s exposed eye. So my little friends spend about 2 hours on top of the SpikerBox for these experiments. I continue to […]

Now that I’ve collected ample data for the “classic” experiment of testing the DCMD response to objects approaching at various sizes and velocities, I want to keep exploring grasshopper vision. So far, the iPad screen is kept at maximum brightness, so the contrast between the white background and the black ball is high and clear. […]

In the ‘Preliminary data‘ log, I had begun my data collection and analysis journey. I first performed the intertrial interval, or ITI, test, to determine the ideal time between 2 stimuli so that the time is long enough to avoid the grasshoppers’ habituation to the simulated balls. The results figures I showed in that previous […]

In the project instructions, I’ve briefly talked about the BYB SpikeRecorder app that I’ve been using on an iPad to add to my grasshopper vision project the flavor of a low-cost-and-DIY-albeit-of-great-quality tool. Here, I’ll talk about it in a bit more details to give the spotlight to one of the main components of my project. Firstly, […]

As I experiment on more and more little grasshoppers, I realize the importance of organization skills. Specifically, I’m talking about how messy my housekeeping of the recordings and analyses have been. In an earlier post, I wrote that my naming system for each grasshopper is in the following format: [day][month][letter indicating order in the day]. […]

By Patrick Glover DETAILS A longstanding debate in philosophy focuses on the existence of free will. Do humans have some inherent moral agency, or are our brains just biological machines, subject to the same physical determinism as any other animal? Modern neuroscience can provide some insight to these questions, such as Benjamin Libet’s famous 1986 experiments that […]