Academic Profile

2012- current Assistant professor
Warwick Neuroscience programme, School of Biological Sciences, NTU
2006-2009 Postdoctoral researcher, 2009-current Group leader
Kavli Institute for Systems Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway
2003-2006 Postdoctoral fellow, Salk Institute for Biological Studies, La Jolla, USA
2002-2003 Postdoctoral fellow, Columbia University, New York, USA

2008 Gruber International research award in Neuroscience
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Asst Prof Ayumu Tashiro
Assistant Professor, School of Biological Sciences

Our lab studies the function of hippocampus circuitry through an interdisciplinary approach combining virus-mediated genetic manipulation, optogenetics and unit recording techniques in behaving rodents. The hippocampus is well known for its functions in memory formation. We are interested in how neuronal circuits in the hippocampus mediate these functions. We particularly focus on two distinct phenomena occurring in the adult hippocampus.

The first is adult neurogenesis (generation of new neurons), which occurs exclusively in a hippocampal subregion called the dentate gyrus and a few other area outside the hippocampus. We are interested in 1) how neural processing/activity in the dentate gyrus determines birth of new neurons and their subsequent functional integration into existing circuits and 2) how those new neurons integrated into circuits contribute to the hippocampal functions.

The second focus is the cellular mechanism of place-cell activity. Place cells are electrophysiologically-defined cell types found in multiple subregions of the hippocampus. When animals explore environments, place cells fire at specific locations in the environments, which suggests that place-cell activity mediates spatial memory processing in the hippocampus. We investigate cellular mechanism underlying properties of place-cell activity using virus-mediated local genetic manipulations.

Our goal is to understand physiological mechanisms in the hippocampus and to provide basic information which is critical to treat and cure brain disorders including dementia, neurodegenerative disease and depression.
 
  • Neurophysiological study of the neural circuits underlying working memory ageing
 
  • Kitanishi, T, Ujita, S, Fallahnezhad, M, Kitanishi, N, Ikegaya, Y, Tashiro, A. (2015). Novelty-induced phase-locked firing to slow gamma oscillations in the hippocampus: requirement of synaptic plasticity. Neuron, 86(5), 1265-76.

  • Verma, P, Augustine, GJ, Ammar, MR, Tashiro, A, Cohen, SM. (2015). A neuroprotective role for microRNA miR-1000 mediated by limiting glutamate excitotoxicity. Nature Neuroscience, 18(3), 379-387.

  • Marumoto T, Tashiro A, Friedmann-Morvinski D, Scadeng M, Soda Y, Gage FH, Verma IM. (2009). Development of a novel mouse glioma model using lentiviral vectors.. Nature Medicine, 15(1), 110-116.

  • Tashiro A, Makino H, Gage FH. (2007). Experience-specific functional modification of the dentate gyrus through adult neurogenesis: A critical period during an immature stage. The Journal of Neuroscience, 27(12), 3252-3259.

  • Tashiro A, Sandler VM, Toni N, Zhao C, Gage FH. (2006). NMDA-receptor-mediated, cell-specific integration of new neurons in adult dentate gyrus. Nature, 442(7105), 929-933.