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{{Short description|Program at the California Institute of Technology}}

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The '''Computation and Neural Systems''' ('''CNS''') program was established at the [[California Institute of Technology]] in 1986 with the goal of training Ph.D.PhD students interested in exploring the relationship between the structure of neuron-like circuits/networks and the computations performed in such systems, whether natural or synthetic. The program was designed to foster the exchange of ideas and collaboration among engineers, neuroscientists, and theoreticians.

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The Computation and Neural Systems (CNS) program was established at the [[California Institute of Technology]] in 1986 with the goal of training Ph.D. students interested in exploring the relationship between the structure of neuron-like circuits/networks and the computations performed in such systems, whether natural or synthetic. The program was designed to foster the exchange of ideas and collaboration among engineers, neuroscientists, and theoreticians.

== History ==

In the early 1980s, having laid out the foundations of VLSI,<ref>C. Mead and L. Conway, ''Introduction to VLSI systems''. Addison-Wesley Reading Mass. (1980)</ref>, [[Carver Mead]] became interested in exploring the similarities between computation done in the brain and the type of computations that could be carried out in analog silicon electronic circuits. Mead joined with [[Nobelist]] [[John Hopfield]], who was studying the theoretical foundations of neural computation,<ref name=HopfieldNets> Hopfield, J.J. ''[http://www.pnas.org/content/pnas/79/8/2554.full.pdf Neural networks and physical systems with emergent collective computational abilities].'' Proc. NatL Acad. Sci. USA Vol. 79, pp. 2554-2558, April 1982</ref>, to expand his study. Mead and Hopfield's first joint course in this area was entitled “Physics of Computation”; Hopfield teaching about his work in neural networks and Mead about his work in the area of replicatingrecreating neuronal structures in highly integrated electronic circuits.<ref name=MeadInterview> Shirley K. Cohen, ''Interview with Carver Mead''. Archives of the California Institute of Technology. ([https://docs.google.com/viewer?url=http%3A%2F%2Foralhistories.library.caltech.edu%2F133%2F02%2FOH_Mead.pdf PDF])</ref>. Given the interest among both students and faculty, they decided to expand upon these themes in the following year. [[Nobelist]] [[Richard Feynman]] joined them and three separate courses resulted: Hopfield's on neural networks, Mead's on neuromorphic analog circuits,<ref> C. Mead, ''Analog VLSI and neural systems''. Addison-Wesley (1989) </ref>, and Feynman's course on the physics of computation.<ref name=MeadInterview/><ref>R.P. Feynman, ''Feynman Lectures on Computation''. Tony Hey and Robin W. Allen ed. Perseus Books Group (2000) isbn={{ISBN|0738202967 }}</ref>. At this point, Mead and Hopfield realized that a new field was emerging with neural scientists and the people doing the computer models and circuits all talking to each other.

In the fall of 1986, [[John Hopfield]] championed forming an interdisciplinary Ph.D. program to give birth to a scholarly community studying questions arising at the interface between neurobiology and electrical engineering, computer science and physics. It was called ''Computation and Neural Systems'' (CNS). The unifying theme of the program was the relationship between the physical structure of a computational system (physical or biological hardware), the dynamics of its operation and the computational problems that it can efficiently solve. The creation of this multidisciplinary program stems largely from progress on several previously unrelated fronts: the analysis of complex neural systems at both the single-cell and the network levels
<ref> D.J. Felleman, D.C. Van Essen. ''Distributed hierarchical processing in the primate cerebral cortex''. Cerebral Cortex, 1 (1) (1991) </ref>
using a variety of techniques (in particular, [[patch- clamp]] recordings, intracellular and extra-cellular single and multi-unit [[electrophysiology]] in the awake animal and functional brain imaging techniques, such as [[functional magnetic resonance imaging]] (fMRI)), the theoretical analysis of nervous structures ([[computational neuroscience]]) and the modeling of artificial [[neural networks]] for engineering purposes.<ref name=HopfieldNets/>. The program started out with a small number of existing faculty in the various divisions. Amongst the early founding faculty were [[Carver Mead]], [[John Hopfield]], [http://neuroscience.wustl.edu/research/faculty.php?id=11 [David vanVan Essen]], Geoffrey Fox, [[James_MJames M._Bower Bower|James Bower]], Mark Konishi, John Allman, [[Ed Posner]] and [[Demetri Psaltis]]. In that year, the first external professor, [[Christof Koch]], was hired.

Since 1990, about 110 graduate students have been awarded a PhD in CNS and 14 a MS in CNS. About two-thirds of CNS graduates pursued an academic career, with the remaining CNS graduates founding and/or joining start-up companies. Over this time, the average duration of PhD has been 5.6 years.

During this time, the executive officers of the CNS Program were [[John Hopfield]], [[Demetri Psaltis]], [[Christof Koch]], and [[Pietro Perona]]. The current executive officer is Thanos Siapas.<ref>{{Cite web|date=|title=Contacts - Biology and Biological Engineering|url=https://www.bbe.caltech.edu/academics/cns/people/contacts|url-status=dead|archive-url=https://web.archive.org/web/20240707233731/https://www.bbe.caltech.edu/academics/cns/people/contacts|archive-date=7 July 2024|access-date=|website=Caltech}}</ref>

== Related Conferencesconferences and Workshopsworkshops ==

== Related Conferences and Workshops ==

CNS faculty founded and co-founded a number of conferences and workshops:

* Snowbird Meeting on Neural Networks for Computing, in 1984.

* [[Neural Information Processing Systems]] (NIPS) in 1987.

* [https://web.archive.org/web/20110723215254/http://www.mbl.edu/education/courses/special_topics/mcn.html Methods in Computational Neuroscience at the Marine Biological Laboratory in Woods Hole], in 1988.

* [https://web.archive.org/web/20140619020927/http://www.ine-web.org/index.php The Telluride Summer School in Neuromorphic Systems Engineering], in 1993.

== Related Academicacademic Programsprograms ==

== Related Academic Programs ==

* [http://www.ini.ethz.ch/ Institute of Neuroinformatics in Zürich, Switzerland]

* [https://web.archive.org/web/20170729060027/http://icnc.huji.ac.il/ The Interdisciplinary Center for Neural Computation at the Hebrew University in Jerusalem, Israel]

== Notable Alumnialumni ==

* [[David J. C. MacKay]] - – Professor of Natural Philosophy in the Department of Physics at the [[University of Cambridge]] and chief scientific adviser to the UK Department of Energy and Climate Change (DECC).

* [http://redwood.berkeley.edu/bruno/ Bruno Olshausen] -– Director, Redwood Center for Theoretical Neuroscience, U.[[University C.of California, Berkeley]].

* [http://www.stanford.edu/group/brainsinsilicon/boahen.html Kwabena Boahen] {{Webarchive|url=https://web.archive.org/web/20110730151129/http://www.stanford.edu/group/brainsinsilicon/boahen.html |date=2011-07-30 }} – Professor of Bioengineering, [[Stanford University]].

* [[Misha Mahowald]]

* [[Erik Winfree]] -– Professor, [[California Institute of Technology]].

* [[Laurent Itti]] -– Professor, [[University of Southern California]].

* [[Tobias Delbruck]] – Professor of Physics and Electrical Engineering, [[ETH Zurich]].

* [[Shih-Chii Liu]] – Professor at the [[University of Zürich]] and co-leader of the Sensors Group at the Institute of Neuroinformatics, [[University of Zürich]].

* [https://www.gatsby.ucl.ac.uk/~maneesh/ Maneesh Sahani] – Director, [https://www.ucl.ac.uk/gatsby/ Gatsby Computational Neuroscience Unit], [[University College London]].

==References==<!-- Cladistics14:1) -->

{{Reflist|1}}

== ReadingsFurther reading ==

* Shirley K. Cohen, ''Interview with Carver Mead''. Archives of the California Institute of Technology. ([https://docs.google.com/viewer?url=http%3A%2F%2Foralhistories.library.caltech.edu%2F133%2F02%2FOH_Mead.pdf PDF])

== Links ==

== External links ==

* [http://cns.caltech.edu/ Web site of the CNS program at Caltech]

* [http://cns.caltech.edu/people/alumni.html Graduates of the CNS program]

* [http://cns.caltech.edu/people/index.html Faculty of the CNS program]

[[Category:California Institute of Technology]]

[[Category:Neural engineering]]