Research Departments & Organizations
Our laboratory applies cellular, molecular, genetic, and physiological approaches to the question of how neuronal circuits perform computations underlying behavioral decision making. We take an interdisciplinary approach to these questions. We manipulate the physiological properties of neurons in directed ways by genetically targeted cell-specific expression of engineered proteins in transgenic animals. These engineered proteins include ion channel subunits, optogenetic effectors, intracellular ionic buffers, signaling enzymes, membrane-tethered neuropeptides, and membrane-tethered peptide neurotoxins that target specific ion channel subtypes. Subsequently, we measure the effects of these manipulations on the whole-animal behavior of intact Drosophila flies or C. elegans worms, as well as on various physiological parameters of the manipulated neurons using cell biological, neurophysiological, functional imaging, and genomics/systems biology techniques. As model systems for addressing these issues, we study the neural circuits that control sexual courtship behavior, sleep, energy metabolism, and decision making in Drosophila melanogaster flies and Caenorhabditis elegans worms.
Neural architecture of hunger-dependent multisensory decision making in C. elegans.
D. Dipon Ghosh, Tom Sanders, Soonwook Hong, Li Yan McCurdy, Daniel L. Chase, Netta Cohen, Michael R. Koelle, and Michael N. Nitabach (in press). Neuron.
Presynaptic GABA Receptors Mediate Temporal Contrast Enhancement in Drosophila Olfactory Sensory Neurons and Modulate Odor-Driven Behavioral Kinetics.
Raccuglia D, Yan McCurdy L, Demir M, Gorur-Shandilya S, Kunst M, Emonet T, Nitabach MN. eNeuro. 2016 Aug 23;3(4). pii: ENEURO.0080-16.2016.
Propagation of Homeostatic Sleep Signals by Segregated Synaptic Microcircuits of the Drosophila Mushroom Body.
Sitaraman D, Aso Y, Jin X, Chen N, Felix M, Rubin GM, Nitabach MN. Curr Biol. 2015 Nov 16;25(22):2915-27. 2015
A tarantula-venom peptide antagonizes the TRPA1 nociceptor ion channel by binding to the S1-S4 gating domain.
Gui J, Liu B, Cao G, Lipchik AM, Perez M, Dekan Z, Mobli M, Daly NL, Alewood PF, Parker LL, King GF, Zhou Y, Jordt SE, Nitabach MN. A tarantula-venom peptide antagonizes the TRPA1 nociceptor ion channel by binding to the S1-S4 gating domain. Current Biology : CB 2014, 24:473-83. 2014
Calcitonin gene-related peptide neurons mediate sleep-specific circadian output in Drosophila.
Kunst M, Hughes ME, Raccuglia D, Felix M, Li M, Barnett G, Duah J, Nitabach MN. Curr Biol. 2014 Nov 17;24(22):2652-64.
Genetically targeted optical electrophysiology in intact neural circuits.
Cao G, Platisa J, Pieribone VA, Raccuglia D, Kunst M, Nitabach MN. Genetically targeted optical electrophysiology in intact neural circuits. Cell 2013, 154:904-13. 2013
Autoreceptor control of peptide/neurotransmitter corelease from PDF neurons determines allocation of circadian activity in drosophila.
Choi C, Cao G, Tanenhaus AK, McCarthy EV, Jung M, Schleyer W, Shang Y, Rosbash M, Yin JC, Nitabach MN. Autoreceptor control of peptide/neurotransmitter corelease from PDF neurons determines allocation of circadian activity in drosophila. Cell Reports 2012, 2:332-44. 2012
Deep sequencing the circadian and diurnal transcriptome of Drosophila brain.
Hughes ME, Grant GR, Paquin C, Qian J, Nitabach MN. Deep sequencing the circadian and diurnal transcriptome of Drosophila brain. Genome Research 2012, 22:1266-81. 2012