Instructor:
Peggy Seriès
Lectures : Monday/Thursday 9:00 - 9:50, new venue: WRB G.02
Labs: Monday 13:00 -15:00, AT Lab South on Level 5 (508), every other week, starting Jan 21st.
Some Fridays 13:00 -15:00, AT Lab South on Level 5 (508).
Tutor: Hannes Saal
This is a course for MSc level students. There are no prerequisites but
some background in statistics, calculus, linear algebra will help, as a
well as some knowledge of matlab.
Computational Cognitive Neuroscience is a growing research field.
The aim of this course is to learn the tools and concepts that can be
used to model cognitive processes.
This course differs from / complements NC and NIP in focussing on
'higher level' processes and phenomena (e.g. decision making) and more
conceptual models (even if we'll try to stay as close as possible to
neurophysiology). It differs from CNV by not being focused on vision,
and by using more abstract models (vs large-scale simulations of early
visual areas).
Some topics covered in this course:
- Simple Models of Neurons and Networks
- Population codes and the relationship between Physiology and Behavior
- Learning and Plasticity models
- Perception and Attention models
- Decision Making models
- Models of mental disorders
- the Connectionnist approach to cognition : examples in Language
- the emerging Bayesian approach to cognition
- .. and more
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Resources
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Assignments
- Two assignments (50%) and one report (50%) (no exam).
- Matlab Assignment 1. Deadline : February 15th, 3 pm.
- Matlab Assignment 2 (subject to minor changes). Deadline March 24th, noon.
- Report: You will have to write a paper based on one or two
papers of your choice. The paper(s) should be related to the themes of
cognitive neuroscience and have a significant computational component.
Please contact me if you're not sure of your choice or want
suggestions. You should explore the context, critically evaluate it,
and discuss questions raised by these papers and maybe suggest further
experimental or theoretical work.
Your report should be around 3000 words (4000 words MAX)
all included (references, captions etc..). You should write for the
interested, but non-specialist reader. You can look at the journal
Trends in Neuroscience (TINS) for how to construct such papers. The aim
of the paper is that you should demonstrate that you can read a paper
in computational cognitive neuroscience, understand its methods,
evaluate its claims and place it in perspective. The deadline date is April 7th, noon.
Tips for choosing a paper.
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Labs The labs will consist mainly of implementation in
matlab of simple models of population codes, perception, learning and
plasticity and decision making. Attendance and work on this material
will help for the assignments.
- Lab 1 (Jan 21st). From single cells to psychophysics. Modeling the
experiments of Newsome, Britten et al (1989). ROC Analysis and
neurometric curve. Lab1.pdf.
For reference, original papers: Newsome et al, 1989,Britten et al, 1992 (you don't need to read those to do the lab). If needed, a Poisson random number generator in matlab.
A possible solution.
- Lab 1-2. Same material + Matlab primer
- Lab 2 (Feb 4th).Tools of computational neuroscience.
Neurons: integrate-and-fire and the model of Izhikevich. Lab2.pdf
Which model to use for cortical spiking Neurons? , Izhikevich, 2004.
Also useful, Simple model of spiking neurons, Izhikevich, 2003 (to download code for network).
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- Lab 2-2 (Feb 8th). Same material.
- Lab 3 (Feb 18th). The ring model. Re-implementing: Ben Yishai et al, 1995. Lab3.pdf
- Lab 4 (March 7th). Perceptron and perceptual learning.
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Week 1 (Jan 7th)
- Introduction. lecture slides.
- Encoding. Overview of the brain, neurons, synapses and electrophysiology. Responses in visual cortex.
Readings: Chap 1 in D&A. lecture slides.
Week 2 (Jan 14th)
- Encoding (continued). Describing tuning curves and variability. Poisson and Gaussian models of noise. lecture slides.
Further reading: Stein et al, 'Neuronal variability: noise or part of the signal', Nat rev Neuro, 2005.
- Decoding. Readings: Chap 3 in D&A. lecture slides.
Further reading: Lebedev & Nicolelis, 'Brain-machine interfaces: past, present and future', 2004
Week 3 (Jan 21st)
- Decoding (end). From population codes to psychophysical performance. Fisher information. lecture slides (updated)
- When neural responses and perception change (1): Attention. Lecture Slides.
Reading: Maunsell and Cook, 'The role of attention in visual processing', 2002.
Further Reading: Itti & Koch, Computational modeling of visual attention, 2001.
Week 4 (Jan 28th)
- When neural responses and perception change (2): Visual Adaptation. Lecture Slides. Presentation of Assignment 1.
- no lecture. Time to begin working on the assignment.
Week 5 (Feb 4th)
- Modeling Tools and Examples. Modeling neurons. The integrate-and-fire model Lecture Slides.
Readings: D&A sections Chap 5 (sections 5.4,5.5,5.8,5.9).
- Modeling networks of neurons. Firing rate models. Lecture Slides.
Readings: D&A Chapter 7.
Week 6 (Feb 11th)
Week 7 (Feb 18th)
Week 8 (Feb 25th)
- Perceptual Learning: how do we know what to learn? Lecture Slides.
- No lecture (Cosyne). Time to begin thinking about the paper assignment.
Week 9 (March 3rd)
- Guest Lecture: Liana Romaniuk, on models of schizophrenia. Lecture Slides
- correction of assignment 1.
Week 10 (March 10th)
Week 11 (March 17th)
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News
- Jan 24: You may be interested in some of the talks in the DTC Neuroinformatics course
which I am organizing.The DTC
students in the course attend these talks already, but other CCN
students are very welcome.
- Jan 24: You are encouraged to apply to the DTC
for PhD study. Of course, MSc students taking CCN will often have taken
some courses that are part of the DTC MSc year, but we can be flexible
in such cases.
Also, I am happy to take PhD students next year, either with DTC funding or by applying to other grant sources (contact me).
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