Interneuron networks and cortical dynamics : emulated whisking drives SOM interneurons in the ketamine anesthetized mouse SI neocortex
Name
903931098-MIT.pdf
Description
Full printable version
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12.1 MB
Format
Adobe PDF
Checksum (MD5)
3143e4f7c04b6b3cdba7b33360d800ce
Author(s)
Skowronski-Lutz, Ethan M. (Ethan Mikael)
Advisor(s)
Christopher I. Moore.
Date Issued
2014
Publisher
Massachusetts Institute of Technology
Abstract
In the core of this thesis I test and confirm the hypothesis that separate classes of interneurons respond differentially to sensory stimulation independent of volitional or other top-down control on the part of the animal. I also test and confirm the hypothesis that, based only on bottom-up sensory stimulation the activity of two major classes of interneurons (adapting Parvalbumin positive and facilitating Somatostatin positive interneurons) predominates during different phases of what corresponds to natural sensing cycles in a behaving rodent. These questions are addressed using an in vivo mouse model with intrinsically fluorescent, but differentiable, interneuron populations combined with 2-photon imaging, Ca²+-sensitive dyes. Anesthesia and electrical control of facial muscles allowed for naturalistic stimulation without the confounds presented by volitional whisking and unknown top-down or behavioral states. Additional chapters in this thesis focus on ancillary work related to computational modeling of neural systems and systems' level perspectives on maturation and disease.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Brain and Cognitive Sciences, 2014.
Cataloged from PDF version of thesis.
Includes bibliographical references.
Subjects
Brain and Cognitive Sciences.
MIT Department
Massachusetts Institute of Technology. Department of Brain and Cognitive Sciences
Terms of Use
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