Position Title
Distinguished Professor Emeritus
- NPB
Profile Introduction
Functional organization of itch, pain and chemesthesis sensory systems
Degrees
1977 PhD (Neurobiology) University of North Carolina
1972 BS (Biology) Cornell University
Research Interests
Functional organization of itch, pain and chemesthesis sensory systems
Our laboratory investigates neural mechanisms of itch, pain, temperature and oral and cutaneous chemical irritation (chemesthesis). We employ a variety of methodological approaches including human psychophysics, animal behavior, neuroanatomy, and electrophysiology including in vivo and in vitro neuronal recording and cell imaging, and optogenetics. Our laboratory has collaborations with other researchers throughout the world.
Until recently, the sensation of itch has received little attention. We use behavioral and neurophysiological approaches to address the question of whether or not itch and pain sensations are conveyed by separate neural pathways and how these sensory qualities interact. Of particular interest is the ability of several itch mediators (proteases, serotonin, histamine) to elicit prolonged scratching behavior in rodents and excitation of peripheral sensory neurons (investigated using calcium imaging) and superficial spinal dorsal horn neurons (investigataed using neurophysiological recordings) over comparable time courses. We have recently begun investigating descending modulation of itch transmission from the brain using optogenetic and electrophysiological approaches.
Our lab also has a longstanding interest in central nervous mechanisms underlying oral irritation. We employ a multidisciplinary approach to investigate the sensory effects of irritant chemicals, such as capsaicin (from red chili peppers), menthol (from mint), cinnamic aldehyde (from cinnamon), mustard oil, and carbonation and other agents causing tingle, with a focus on transduction mechanisms involving thermosensitive TRP (transient receptor potential) ion channels.
Awards
Fulbright Scholar Award, Romania, 2014-15
Fulbright Scholar Award, Germany, 1995-96
Fulbright Scholar Award, Germany, 1987-88
Alexander von Humboldt Foundation, 1977-78
Alexander von Humboldt Foundation, 1987
Department and Center Affiliations
Center for Neuroscience
Department of Anesthesiology and Pain Medicine
ProfessionalSocieties
Soc. for Neuroscience; Assoc. for Chemoreception Sciences; Intl. Assoc. for the Study of Pain; Int. Forum for the Study of Itch (currently serving as President)
CBS Grad Group Affiliations
Neuroscience
Molecular, Cellular, and Integrative Physiology
Specialties / Focus
Molecular, Cellular, and Integrative Physiology
- Neurophysiology
Graduate Groups not Housed in CBS
Food Science Graduate Group
Labs
Carstens Lab
-
Carstens Lab: Earl Carstens, Mirela Iodi Carstens
Teaching Interests
Neuroscience.
Courses
NPB 100 NPB 100 (neurobiology); MCIP 210B (neurophysiology) (Winter)