






Reconfigurable, Scalable, &
Built for High-Throughput Experiments

Lightweight Headmounts & Small Footprint Design

Manipulate Neural Circuits with High Precision Using Polygon

Observe & Synchronize Neural Activity with Behaviour
The Kravitz Lab investigates the circuits underlying hedonic feeding using cellular-resolution Ca2+ imaging and optogenetics during consumption of obesogenic foods. We used the Mightex OASIS Fiberscope to record Ca2+ dynamics from genetically identified ventral pallidum neurons (VPGABA and VPGlu) in awake, head-fixed mice. We observed proportionally similar levels of activation and inhibition during licking behaviour (high calorie Ensure reward) in VPGABA and VPGlu neurons. However, active VPGABA neurons had Ca2+ dynamics that scaled with consumption duration. This suggests that a subpopulation of VPGABA neurons is highly responsive to palatable reward consumption and might be a mechanistic target for suppressing hedonic feeding that underlies diet-induced obesity.

The OASIS Fiberscope’s integration with a scientific-grade camera (pco.panda sCMOS) enabled these cellular-resolution recordings through superior spatial resolution, sampling rates, and illumination control. The Mightex PolyScan4 acquisition software facilitated reliable synchronization of Ca2+ imaging with behavioural timestamps, allowing precise alignment of neural activity with licking microstructure and consumption duration.


Justin G. Wang is a doctoral trainee in the Neurosciences program at Washington University in St. Louis., enrolled since 2020, under the supervision of Alexxai V. Kravitz, PhD. He earned his undergraduate degree from New York University in 2018. His research focuses on dissecting striatopallidal circuits that modulate feeding behaviour, with the goal of advancing our understanding of neural mechanisms underlying motivation and appetite.
Dr. Alexxai V. Kravitz is an Associate Professor of Neuroscience and Anesthesiology and serves as Interim Division Director for Basic Neuroscience at Washington University in St. Louis. His research focuses on basal ganglia circuitry and how its function is altered in disease states such as obesity, addiction, and anxiety disorders. Under normal conditions, his work examines how basal ganglia networks drive the selection of adaptive behavioural outcomes, providing insight into both healthy and pathological brain function.

“The Mightex OASIS imaging system has been reliable and highly customizable, with seamless integration between the acquisition box, behaviuor camera, and PolyScan4 software that enables synchronized calcium imaging and behavioural recording, streamlining our workflow and allowing precise alignment of neural activity with behaviours of interest. ”
— Justin G. Wang, Doctoral Trainee at Washington University in St. Louis
— Alexxai V. Kravitz, Associate Professor at Washington University in St. Louis



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We provide comprehensive remote and in-person support throughout every stage of your experiment. From initial system installation and configuration to advanced experimental workflows, our technical and applications teams work closely with you to ensure reliable performance and smooth integration into your lab environment. Support is available for troubleshooting, optimization, and experimental planning, with responsive follow-ups to keep your research moving forward. Leveraging our global distributor network, we ensure consistent, high-quality support for users worldwide.

Our training programs are designed to help users quickly gain confidence and proficiency with both hardware and software. We offer detailed instruction on system setup, operation, and maintenance, as well as guidance on experimental workflows and best practices. For applications that require it, we also provide training on surgical procedures and preparation techniques relevant to optical imaging and optogenetics. Training can be delivered remotely or on-site, depending on your needs, and is tailored to the experience level and research goals of your team.

We maintain a robust online resource library to support your research beyond direct technical assistance. These resources include application notes, e-books, recorded webinars, tutorials, and references to relevant peer-reviewed publications. Designed to support both new and experienced users, our materials provide practical guidance, troubleshooting tips, and real-world examples to help you refine experimental design, improve data quality, and stay informed about emerging techniques.
We provide comprehensive remote and in-person support throughout every stage of your experiment. From initial system installation and configuration to advanced experimental workflows, our technical and applications teams work closely with you to ensure reliable performance and smooth integration into your lab environment. Support is available for troubleshooting, optimization, and experimental planning, with responsive follow-ups to keep your research moving forward. Leveraging our global distributor network, we ensure consistent, high-quality support for users worldwide.
