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Post Doctoral Researchers

Doreen Möckel

Electrophysiology of Auditory Neurons in the Inferior Colliculus of the Big Brown Bat


Doreen I studied Biology at the Goethe University in Frankfurt am Main, Germany, with advanced training in General Zoology, General Animal Physiology, and Neurophysiology. I completed my Diploma and my PhD project in the lab of Prof. Manfred Kössl, working on otoacoustic emissions (OAEs) in tympanal hearing organs of locusts and bushcrickets. Despite distinct differences in external and internal ear anatomy, insect OAEs are comparable to those recorded in vertebrates. My projects included mechanical, electrical, and pharmacological manipulations while recording DPOAEs, Laser Doppler vibrometry, and histology. I then did a postdoc year at the University of Kentucky in Lexington, USA, at the lab of Prof. Gregory Frolenkov. The mice I was working with had a mutation within their tip-links, the extracellular filaments which interconnect stereocilia of inner hair cells and deliver forces to the mechanosensitive transduction channels. I obtained auditory brainstem responses (ABRs) before and at certain timepoints after noise-over-exposure to determine if there is any recovery from noise-induced hearing loss in these mice. Starting in July 2016, I now joined the Batlab at McMaster University. My project will include extracellular recordings from the IC, ABRs, OAEs and histology. Outside the lab, I spend most of my time with my dog Sam, I enjoy hiking, traveling, watching all sorts of sports (preferably football and MotoGP, but pretty much everything else), and reading, and I love the autumn and winter season, ideally of course with a ton of snow.

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Graduate Students

Rob Valdizon

Electrophysiology of Auditory Neurons in the Inferior Colliculus of the Big Brown Bat


Rob I am an Honours Chemistry graduate from McMaster University, with a minor in Psychology. My research tries to understand how sound is encoded in the mid brain of echolocating bats using single unit extracellular techniques - with a current focus on studying duration tuned neurons. These neurons respond to specific auditory stimuli in the time domain. My interests include drumming, running and reading.

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Lucas Greville

Reproductive Endocrinology in the Big Brown Bat


Lucas I am a graduate of McMaster University having completed an honours degree in Biology and Psychology. My undergraduate research has focused on estradiol transfer between conspecific big brown bats (Eptesicus fuscus), and I will continue to study this phenomenon for the duration of my graduate research. The unique reproductive cycle of E. fuscus and early evolution of bats make them a prime organism to study reproductive endocrinology. Outside of the lab I enjoy playing/watching hockey and playing trumpet.

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Robert Mastroieni

Duration-Tuning in the Auditory Midbrain of the Big Brown Bat


RobMastroieni I am an Honours Health Science & Psychology graduate from Wilfrid Laurier University, with a minor in Biology. My undergraduate research focused on the brain regions activated by administration of Salvia Divinorum. My graduate research is focused on studying duration-tuned neurons in the big brown bat. I enjoy playing/watching sports, and playing guitar.

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Zeeshan Haqqee

Duration-Tuned Neurons in the Auditory Midbrain of the Big Brown Bat


zeeshan I am an Honours Biology & Psychology graduate from McMaster University. My undergraduate research focused on studying spontaneous neural activity in the auditory brainstem of neonatal rats. I then worked as a Research Assistant at St. Joseph's Healthcare Hamilton. My graduate research will focus on studying duration-tuned neurons in the auditory midbrain of the big brown bat. Outside of the lab, I really enjoy travelling, as well as learning to play music (guitar, piano, and opera).

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Daniel Dubovan

Monaural and Binaural Response Properties of Duration Tuned Neurons


Daniel dubovin I am an Honours Neuroscience graduate from the University of Windsor. My undergraduate research involved immunohistochemical staining of juvenile Chinook salmon brains to determine regions of neurogenesis. I am a graduate student in the Bat lab and am looking forward to doing research on the Big Brown Bat. I enjoy playing and watching football and keeping active.

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I am a fifth year graduate student in the bat lab. I graduated from Mac with a BSc in Psychology and a minor in Computer Science. My honours thesis with Laurel Trainor focused on neural computational models of auditory processing. My research interests now lie in electrophysiology, with an emphasis on understanding neural mechanisms underlying auditory processing and perception. For my research I am investigating the central auditory system of the big brown bat.

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