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Utica University

Sarah M. Keesom, Ph.D.

  1. Directory
  2. Sarah M. Keesom, Ph.D.
Sarah Keesom
Position
  • Associate Professor of Biology
Phone
(315) 792-3177
Email
smkeesom@utica.edu
Office
  • 307 Science Annex
  • School of Arts & Sciences
Position type
Faculty

Jump To

    Biography

    I am originally from Rochester, NY, and I earned my B.S. in Biology from Elmira College. I received my Ph.D. from Indiana University, where I studied serotonin as a mechanism for fine-tuning auditory processing during social encounters. While pursuing my Ph.D., I also contributed to development of the biology undergraduate curriculum and mentored numerous students in neuroscience and animal behavior research. I joined the biology faculty at Utica University, because I enjoy working with undergraduate students and sharing my enthusiasm for biology (especially physiology and behavior!).

    Research interests:
    I investigate the mechanisms used by the brain to fine-tune signal reception across changing social contexts. The serotonergic system is well known for its role in the regulation of mood, appetite, and social behavior. Reflecting these roles, this centralized neurochemical system collects a wealth of contextual information from other brain areas, and through its extensive connections, it can redistribute this information back to the brain, including sensory regions. Serotonin typically has neuromodulatory effects, in that it modifies activity in the receiving brain regions, as opposed to stimulating neural activity on its own. The serotonergic system is thus strategically positioned to adjust signal reception across different social situations.

    Specifically, my work focuses on vocal communication and the role of serotonin within the auditory system. My research demonstrates that serotonin conveys detailed information to the auditory system on acute variations in the quality of social interaction. My work also shows that chronic social isolation shapes the trajectory of socially triggered elevations in serotonin. Complementing my neurophysiological research, I also study the vocal signals processed by auditory systems. This work demonstrates that vocalizations change within even a single social encounter and that vocal signals are also sensitive to chronic changes in reproductive state, social experience, and season. By combining neuroscience and behavioral studies, my research thus provides insight into the details governing serotonergic modulation of auditory function within an ethologically relevant framework.

    Opportunities for Student Research and Collaboration

    As a member of my lab, you will have the opportunity to learn immunohistochemistry, fluorescent microscopy, image analysis, vocalization analysis, and behavioral analysis. Students interested in pursuing research with me are encouraged to contact me with their research interests and ideas.

    Education

    B.S. in Biology - Elmira College (Elmira, NY)
    Ph.D. in Biology - Indiana University (Bloomington, IN)
    Postdoctoral Fellow - University of Manitoba (Winnipeg, MB, Canada)

     

    Past Research

    See my ResearchGate profile for entries.

    Dr. Keesom on ResearchGate

    Courses Taught

    BIO 101 Anatomy & Physiology I

    BIO 102 Anatomy & Physiology II

    BIO 202 Neuroanatomy & Neurophysiology

    BIO 211L General Biology lab

    BIO 232 Research Methods II

    BIO 324 Animal Physiology

    BIO 338 Animal Behavior

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