Neurons in local neuronal circuits are interconnected via synapses that can experience dramatic changes in strength during ongoing neuronal activity. How synapses are regulated on a time scale of tens of milliseconds to tens of seconds is not well understood.
|Cerebellar mossy fiber boutons labeled with dextran dye (red) and GFP (green).|
My laboratory uses electrophysiological and optical recording techniques in brain slices of the mammalian cerebellum, thalamus, and neocortex to explore the mechanisms underlying short-term synaptic plasticity and its importance for local circuit behavior. Ultimately this knowledge will help us to understand the computations performed in neuronal networks that mediate perception, memory formation and higher cognitive functions.
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Beierlein, M, Gibson, JR, Connors, BW. (2000) A network of electrically coupled interneurons drives synchronized inhibition in neocortex. Nat. Neurosci. 3, 904-910.
Beierlein, M, Fall, CP, Rinzel, J, Yuste R. (2002) Thalamocortical bursts trigger recurrent activity in neocortical networks: layer 4 as a frequency-dependent gate. J. Neurosci. 22, 9885-9894.
Beierlein, M, Gibson, JR, Connors, BW. (2003) Two dynamically distinct inhibitory networks in layer 4 of the neocortex. J. Neurophysiol. 90, 2987-3000.
Beierlein, M, Gee, KR, Martin, VV, Regehr, WR. (2004) Presynaptic calcium measurements at physiological temperatures using a new class of dextran-conjugated indicators. J. Neurophysiol. 92, 591-599.
Beierlein, M, Regehr, WG. (2006) Brief bursts of parallel fiber activity trigger calcium waves in Bergmann glia. J. Neurosci. 26, 6958-6967.
Beierlein, M, Regehr, WG. (2006) Local interneurons regulate synaptic strength by retrograde release of endocannabinoids. J. Neurosci. 26, 9935-9943.
Beierlein, M, Fioravante, D, Regehr, WG. (2007) Differential expression of post-tetanic potentiation and retrograde signaling mediate target-dependent short-term synaptic plasticity. Neuron 54(6), 949-959.
Myoga, M, Beierlein, M, Regehr, WG. (2009) Somatic spikes regulate dendritic signaling in small neurons in the absence of backpropagating action potentials. J. Neurosci. 29, 7803-7814.
Sun, Y-G, Beierlein, M. (2011) Receptor saturation controls short-term synaptic plasticity at corticothalamic synapses. J. Neurophysiol. 105, 2319-2329.
Sun, Y-G, Wu, C-S, Lu, H-C, Beierlein, M. (2011) Target-dependent control of synaptic inhibition by endocannabinoids in the thalamus. J. Neurosci. 31, 9222-9230.
Beierlein, M. (2011) Imaging calcium waves in cerebellar Bergmann glia. In: Optical Imaging in Neuroscience (Yuste, R., Lanni, F., Konnerth, A., eds.), Cold Spring Harbor Laboratory Press, Woodbury, NY.
Sun, Y-G, Wu, C-S, Renger, JJ, Uebele, VN, Lu, H-C, and Beierlein, M. (2012) GABAergic synaptic transmission triggers action potentials in thalamic reticular nucleus neurons. J. Neurosci. 32, 7782-7790.
Sun, Y-G, Pita-Almenar, JD, Wu, C-S, Renger, JJ, Uebele, VN, Lu, H-C, and Beierlein, M. (in press) Biphasic cholinergic synaptic transmission in the thalamic reticular nucleus. J. Neurosci.
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|Synchronous activity in inhibitory neocortical neurons interconnected by electrical synapses.|