Lab members
Cindy
Cynthia F. Moss, Ph.D.
Principal Investigator
The importance of sensory-guided behaviors captured my interest early in college, and ever since, I have investigated visual, gustatory, tactile and auditory systems in diverse species. My undergraduate thesis research at the University of Massachusetts with Professor Vincent Dethier characterized changes in gustatory responses to sucrose-quinine mixtures with hunger states in the blowfly. Later, as a research technician at the University of Washington, I contributed to research on the development of spatial vision in human infants and rod-cone interactions in adults. In graduate school at Brown University, my first studies investigated the influence of spatial contrast on single neuron responses to luminance changes. I later conducted neuroethological studies of hearing with Professor Megela-Simmons, and my dissertation research exploited a reflex modification method to measure absolute hearing sensitivity and critical ratios in the green treefrog. As a postdoc, I first carried out experiments on target ranging by echolocation in bats at the University of Tübingen with Professor Hans-Ulrich Schnitzler and later at Brown University with Professor James Simmons. The echolocating bat has served as the primary research subject in my lab over the years, and it now serves as a powerful animal model to investigate a broad range of topics, which include auditory, visual and somatosensory processing, spatial perception, attention, learning, memory, navigation, sensorimotor integration, social communication, predictive target tracking, and flight control. The diversity of research questions investigated in my lab emerges from undergraduates, graduate students and postdocs, who pursue their individual interests, and a team approach to build connections across scientific problems.
Susanne
Susanne J. Sterbing, Ph.D.
Assistant Research Professor
JHU | UMD | Google Scholar
Echolocating bats exhibit an extraordinary array of solutions to the challenges of maneuvering in cluttered environments, pursuing evasive prey, taking food from water surfaces, and landing on the ceiling or walls of confined spaces (holes in trees, rafters in attics, ceiling of caves). Somatosensory signaling of airflow along the wing membrane contributes to this exquisite flight control, but successful navigation in the dark must also engage multisensory processes that guide a suite of adaptive motor behaviors. I am interested in the multisensory components of this sophisticated model system that are involved in flight control, like auditory (sonar), tactile, and proprioceptive components by analyzing behavioral changes, i.e., adaptive flight trajectories and vocal-motor patterns.
Kisi
Kirsten (Kisi) Bohn, Ph.D.
Lecturer
Assistant Research Professor
I am interested in the evolution of vocal and social complexity. Everyone would agree that humans have the greatest vocal complexity known. However, even though a great deal of research has focused on speech production and language evolution, these topics remain highly controversial. This is in part because only a handful of animals use complex vocal signals. Indeed, birdsong has been our main model for the neurophysiology of speech and the evolution of complex vocalizations. Our goal is to add bats as a comparative model to better understand the production and evolution of vocal complexity, including human speech. Bats can also serve as a model for social complexity and cooperation as there are over 1200 species of bats the majority of which are highly social.
Angie
Angeles (Angie) Salles, Ph.D.
Postdoctoral Fellow
Google Scholar
I am interested in the auditory processing of complex sounds. Bats are gregarious animals that have well developed audio-vocal systems and produce ultrasonic vocalizations to localize objects in their environment, and social communication calls that vary in complexity, form, and function. Specifically, I am interested in how bats solve the challenging task of discriminating sounds that show overlap in spectro-temporal features but carry different semantic content.
Jenni
Jennifer Lawlor, Ph.D.
Postdoctoral Fellow
My work focuses on processing and extraction of relevant information of auditory scenes for goal-directed behavior. I use a combination of behavioral models (humans, bats, mice...) to study how state-dependent changes and context can influence perception first, leading to optimization of decision-making and ultimately output behavior.
Kate
Kate Allen, Ph.D.
Postdoctoral Fellow
I'm a neuroethologist at heart, with a specific interest in how sensory systems translate the noisy and unpredictable information in the physical world into useful information that can guide behavior. I am particularly interested in active sensory systems, because they allow us to directly measure how our subjects are sampling the environment. Using echolocating bats, my research investigates how the brain perceives and interprets objects in a 3–dimensional environment. As a bat navigates and hunts, they receive brief "snapshots" of prey, obstacles, and landmarks around them as echoes. By the time the bat has produced another call and received a new "snapshot", their angle and distance from those objects has changed, dramatically altering the acoustic scene. How do bats reconstruct these disparate bits of information into a continuous representation of objects in their environment? My research probes the limits of auditory recognition and understand how the brain represents acoustic information.
Dimitri
Dimitri Skandalis, Ph.D.
Postdoctoral Fellow
I study how animals use and combine multiple sensory modalities to guide movement through diverse environments (sensory fusion). In the Moss lab I am working to understand how different species of bats' reliance on combined visual and auditory information when executing rapid flight maneuvers. I aim to use these results to better understand closed-loop behaviour control, in collaboration with the Cowan lab.
Xiaoyan
Xiaoyan Yin, Ph.D.
Postdoctoral Fellow
Bats are well-known for their intricate biosonar system that allows the animals to navigate in complex natural environments. I am interested in the mechanism behind these abilities. Some bat species rapidly adjust their sonar signals which include the call rate, pulse duration, and directional aim of the sonar beam while they navigate through complex environments. I am particularly interested in how the bats adapt their sonar behavior under various tasks like foraging, commuting, and social interactions.
Iven
Iven Yu
Graduate Student
Spatial navigation is essential to the survival of animals. During navigation, animals can use sensory information acquired from the environment to build a mental representation of the space. I am interested in how animals change their strategies in acquiring sensory information from the environment under different navigation tasks; and how these changes may affect the mental representation of the space. In our lab, we monitor the vocal behaviors of echolocating bats (i.e., how bats acquire sensory information) in navigation tasks. We have demonstrated that bats increased sonar inspections towards landmarks compared with distractor objects. We are currently investigating the relationship between the representation of the space and various vocal behaviors under different and complex tasks.
Brittney
Brittney Boublil
Graduate Student
I am primarily interested in how sensory information is used to coordinate various behaviors. Echolocating bats offer a unique opportunity to study these questions because they have evolved specializations to navigate and forage in the dark, using biological sonar. Specifically, I am interested in flight control and investigating how the echolocating bat coordinates its adaptive sonar behavior during flight.
Clarice
Clarice Diebold
Graduate Student
Bats dynamically shift call structure in order to track and intercept targets, often in cluttered or noisy environments. I am interested in how bats are able to interpret returning echoes to generate internal models of target motion, and how they maintain these representations when sensory access is restricted. Working in collaboration with Dr. Angeles Salles, we aim to determine if bats use predictive or non-predictive strategies when tracking target motion and evaluate how they might change strategies when the prediction is challenged by occluding a portion of the target trajectory, akin to an insect prey darting behind a tree. Ultimately, I am to examine over what time scales bats are able to integrate sensory information to generate and update internal models of target motion.
Michael
Michael G. Wilkinson
PhD Student
LinkedIn
Mechanical Engineering, LCSR, LIMBS Lab,
Batlab (affiliate).
Wei
Wei Xian
Lab Manager
I am interested in how bats adapt their echolocation call to dynamic changes in the acoustic environment and how they navigate in the complex 3-D environments.

I am also interested in how they communicate with each other during foraging.
Collaborators

Kishore Kuchibhotla

Timothy Horiuchi

P.S. Krishnaprasad

Ellen Lumpkin

Rachel Page

Shihab Shamma

Jonathan Simon

Annemarie Surlykke

Nachum Ulanovsky

Yossi Yovel

Alumni

Copyright@2017 Batlab, Johns Hopkins University
Questions and comments to wxian1@jhu.edu

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