Optogenetics pp 267-279 | Cite as

Optogenetic Tools for Confined Stimulation in Deep Brain Structures

  • Alexandre Castonguay
  • Sébastien Thomas
  • Frédéric Lesage
  • Christian CasanovaEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 1408)


Optogenetics has emerged in the past decade as a technique to modulate brain activity with cell-type specificity and with high temporal resolution. Among the challenges associated with this technique is the difficulty to target a spatially restricted neuron population. Indeed, light absorption and scattering in biological tissues make it difficult to illuminate a minute volume, especially in the deep brain, without the use of optical fibers to guide light. This work describes the design and the in vivo application of a side-firing optical fiber adequate for delivering light to specific regions within a brain subcortical structure.

Key words

Deep brain stimulation Optogenetics Side-firing optical fiber 



Supported by a Fonds de Recherche du Québec-Nature et Technologies (FRQ-NT) grant #165075 (Projet de recherche en équipe) to F.L. and C.C. and by Natural Sciences and Engineering Research Council of Canada (NSERC) grants #194670 and 239876 to C.C. and F.L., respectively. A.C. was supported in part by scholarships from the Fonds de Recherche en Santé du Québec (FRSQ) vision network and the Faculté des Études Supérieures et Postdoctorales-Institut de Génie Biomedical (FESP-IGB) of the Université de Montréal.


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Alexandre Castonguay
    • 1
  • Sébastien Thomas
    • 2
  • Frédéric Lesage
    • 1
    • 3
  • Christian Casanova
    • 2
    Email author
  1. 1.École Polytechnique de MontréalMontréalCanada
  2. 2.Laboratoire des Neurosciences de la Vision, École d’optométrieUniversité de MontréalMontréalCanada
  3. 3.Research CenterMontreal Heart InstituteMontréalCanada

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