Seminars & Events

Thursday, September 11, 2014: Dr. Bevil Conway (Wellesley College) will speak on his research in visual neuroscience and color at 4:30 pm in Goodpaster Hall 195.

Monday, October 27, 2014: Dr. Todd Gould (University of Maryland Baltimore) will speak on "Genes to behaviors to treatments in bipolar disorder" at 4:45 pm in Goodpaster Hall 195

Friday, December 5, 2014:  Dr. Brian Mathur (University of Maryland Baltimore) will speak on "Braking bad: Aberrant inhibitory neurotransmission in addiction" at 3:00 pm in Goodpaster Hall 195.


Alumni Highlight

Check out Jordan Gaines Lewis '11's award-winning blog, Gaines on Brains.




SMP Spotlight

Katie Gluskin and Jeff Haus present their SMP
Katie Gluskin and Jeff Haus, "Entorhinal Cortex Lesions, Habituation, and Latent Inhibition," 2013. Gluskin and Haus, the 2013 co-winners of the Neuroscience Award, infused a neurotoxin into the entorhinal cortex of rats to induce a lesion, and measured the resulting habituation and latent inhibition behavior within a fear conditioning paradigm.


Gibbons, Kaitlin (2010).   Pressure mechanosensory neuron interactions and connections in the leeches Hirudo verbana and Macrobdella decora.   Mentor: Dr. Michael Baltzley


The European medicinal leech Hirudo verbana has four mechanosensory pressure neurons (P cells) in each midbody ganglion. Within an isolated ganglion, P cells have complex mutually inhibitory connections. When one P cell is stimulated intracellularly, the other P cells have a weak depolarization followed by a strong hyperpolarization. This complex response appears to be mediated by a combination of electrical coupling, monosynaptic excitation and polysynaptic inhibition. I examined the P cell homologues in the American medicinal leech Macrobdella decora. I found that intracellular stimulation of one P cell causes a slight depolarization in the other P cells. Experiments performed in a high Mg2+, 0 Ca2+ saline and a high Mg2+, high Ca2+ saline suggest that the P cells in M. decora have an electrical coupling, a monosynaptic excitation and polysynaptic inhibition, similar to the connections between P cells in H. verbana. Therefore, the difference in net response between these two species seems to be based on differences in the strengths of the electrical and chemical connections. I also tested the connections between P cells in both M. decora and H. verbana in normal leech saline with bicuculline, a GABA-antagonist. Our preliminary results show that the polysynaptic inhibition was eliminated in both species, suggesting that the inhibition is due to GABA-mediated Cl- channels.