Dr. Per M Knutsen

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    UC San Diego, La Jolla, CA, USA

    Curator and author



    • BA Psychology, Physiology & Philosophy, University of Ocford, 2000.
    • MSc Neurobiology, Weizmann Institute of Science, 2002.
    • PhD, Weizmann Institute of Science, 2006.

    Research Interests


    • Lin, J. Y., Knutsen, P. M., Muller, A., Kleinfeld, D., & Tsien, R. Y. (2013). ReaChR: a red-shifted variant of channelrhodopsin enables deep transcranial optogenetic excitation. Nature Neuroscience, (September), 1–12. doi:10.1038/nn.3502
    • Blinder, P., Tsai, P. S., Kaufhold, J. P., Knutsen, P. M., Suhl, H., & Kleinfeld, D. (2013). The cortical angiome: an interconnected vascular network with noncolumnar patterns of blood flow. Nature Neuroscience, (June), 1–11. doi:10.1038/nn.3426
    • Bagdasarian, K., Szwed, M., Knutsen, P. M., Deutsch, D., Derdikman, D., Pietr, M., … Ahissar, E. (2013). Pre-neuronal morphological processing of object location by individual whiskers. Nature Neuroscience, 16(5), 16(5). doi:10.1038/nn.3378
    • Deutsch, D., Pietr, M., Knutsen, P. M., Ahissar, E., & Schneidman, E. (2012). Fast Feedback in Active Sensing: Touch-Induced Changes to Whisker-Object Interaction. PLoS ONE, 7(9), e44272. doi:10.1371/journal.pone.0044272
    • Horev, G., Saig, A., Knutsen, P. M., Pietr, M. D., Yu, C., & Ahissar, E. (2011). Motor-sensory Convergence in Object Localization: A Comparative Study in Rats and Humans. Phil Trans R Series B., 366, 3070–3076.
    • Drew, P. J., Shih, A. Y., Driscoll, J. D., Knutsen, P. M., Blinder, P., Davalos, D., … Kleinfeld, D. (2010). Chronic optical access through a polished and reinforced thinned skull. Nature Methods, 7(12), 981–984. Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/20966916
    • Pietr, M. D., Knutsen, P. M., Shore, D. I., Ahissar, E., & Vogel, Z. (2010). Cannabinoids reveal separate controls for whisking amplitude and timing in rats. Journal of Neurophysiology, 104(5), 2532–42. doi:10.1152/jn.01039.2009
    • Knutsen, P. M., Biess, A., & Ahissar, E. (2008). Vibrissal kinematics in 3D: tight coupling of azimuth, elevation, and torsion across different whisking modes. Neuron, 59(1), 35–42. doi:10.1016/j.neuron.2008.05.013
    • Diamond, M. E., von Heimendahl, M., Knutsen, P. M., Kleinfeld, D., & Ahissar, E. (2008). “Where” and “what” in the whisker sensorimotor system. Nat Rev Neurosci, 9(8), 601–612.
    • Ahissar, E., & Knutsen, P. M. (2008). Object localization with whiskers. Biological Cybernetics, 98(6), 449–458.
    • Derdikman, D., Szwed, M., Bagdasarian, K., Knutsen, P. M., Pietr, M. D., Yu, C., … Ahissar, E. (2006). Active construction of percepts about object location. Novartis Foundation symposium, 270, 4–14; discussion 14–7, 51–8.
    • Knutsen, P. M., Pietr, M. D., & Ahissar, E. (2006). Haptic object localization in the vibrissal system: behavior and performance. Journal of Neuroscience, 26(33), 8451–8464.
    • Knutsen, P. M., Derdikman, D., & Ahissar, E. (2005). Tracking whisker and head movements in unrestrained behaving rodents. Journal of Neurophysiology, 93(4), 2294–301. doi:10.1152/jn.00718.2004
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