NB204 Spring 2007Neurobiology 204: Neurophysiology of Central Circuitshttp://www.hms.harvard.edu/bss/neuro/bornlab/nb204/Co-Directors: Rick Born and Rachel Wilson([email protected], 432-1307; [email protected], 432-5571)Faculty: John Assad, Margaret Livingstone, John Maunsell, Clay ReidTA: Nic Price ([email protected])Time: Mondays and Wednesdays from 10:00 a.m. to 12:00 p.m.Location: Warren Alpert Building, Rm. 336.This course serves as an introduction to the physiology of circuits in the vertebrate central nervous system. Topics include the visual, auditory, olfactory, and somatosensory systems, the neural control of eye movements, reward, and perception. The behavior of these systems will be analyzed at three levels: the electrophysiological properties of single neurons, synaptic interactions between neurons in vitro, andthe behavior of the circuits in vivo.Week Monday Wednesday1 Jan. 31 Concept: Receptive fields & neural codes (Born/Wilson)2 Feb. 5 Discussion (Born/Wilson) Feb. 7 Vision: Retina to V1 (Reid)3 Feb. 12 Discussion (Reid) Feb. 14 Concept: Cortical Maps (Born)4 Feb. 19 Holiday: President's day Feb. 21 Somatosensory system (Wilson)5 Feb. 26 Discussion (Wilson) Feb. 28 Auditory system (Assad)6 Mar. 5 Discussion (Assad) Mar. 7 Olfactory system (Wilson)7 Mar. 12 Discussion (Wilson) Mar. 14 Concept: Circuits & connectivity (Reid)8 Mar. 19 Discussion (Reid) Mar. 21 Vision: Motion integration (Born)Mar. 26 SPRING BREAK Mar. 28 SPRING BREAK9 Apr. 2 Discussion (Born) Apr. 4 Vision: Direction selectivity (Livingstone)10 Apr. 9 Discussion (Livingstone) Apr. 11 Concept: Neurons & perception (Maunsell)11 Apr. 16 Discussion (Maunsell) Apr. 18 Basal ganglia & reward (Assad)12 Apr. 23 Discussion (Assad) Apr. 25 Cerebellum & motor learning (Born)13 Apr. 30 Discussion (Born) May 2 Hand out Final ExamSCHEDULE Wednesday classes will generally consist of a two-hour lecture. Mondays we will discuss one or more papers (posted at http://www.hms.harvard.edu/bss/neuro/bornlab/nb204/). Discussions of papers in class should be very interactive. Each student should be prepared to discuss the following for each of theassigned papers: 1) The big picture (abstract and introduction), 2) methods, 3) each figure, 4) main conclusions.Page 1 of 3NB204 Spring 2007GRADINGThe grade will be computed as follows:homework - 40%final exam - 40%class participation - 20%Grades will be lowered for repeated absenteeism or arriving late to class. HOMEWORK Homework assignments are due before class Monday. Please e-mail homework to [email protected] by 10AM Monday. Name your file nb204surnameX.doc, where X is the week of the assignment (e.g. nb204smith3.doc in week 3) and please put “nb204” in the subject line. Homework assignments will be based on the papers we discuss on class on Mondays. The faculty member teaching that week may have special instructions for your written assignment, so check the mini-syllabus before starting to read and write. In general, you will be asked to write one of the following two types of assignments. Make sure you know which type is being assigned each week.A) a referee’s report (750-1250 words total)Please evaluate the paper as if you were a referee reviewing this manuscript for an editor at a journal. Your referee’s report must contain two parts:- a summary (<500 words) of the paper. Summarize the major question(s) addressed by this study, the study’s major methods, and their major results/conclusions. - a critique (~500 words) of the paper. The goal of this critique is to assess the positives and negatives ofthis study, and to help the editor decide whether to publish it. Some instructors may choose papers that are clearly flawed or clearly quite good, and so some of your reports may be much more positive than others. Your critique must explicitly address the following:1. Is the major question addressed by this study an interesting one?2. Are the authors’ conclusions supported by their results? (Consider whether different interpretations would be equally plausible.)3. Are additional experiments required before the authors can persuade you of their interpretation? If so, what?4. As a referee, would you recommend publication of this study in the journal where it ultimately appeared?Focus your critique on the scientific substance of the paper, and avoid dwelling on superficial issues (like the tone, style, or grammar of the manuscript). If you prefer to intermingle summary and critique, that’s OK, but make sure you spend at least half your review in critique mode.B) a “news and views” essay (750-1250 words total)Please write a commentary on this paper. Pretend that your essay will appear in the same issue of the journal as the paper you are discussing. The goal of this commentary is to help readers understand the context of this study. These essays generally have a positive tone, although they often point out (diplomatically) an important caveat of the paper. Your commentary must explicitly address the following:1. What is the major question addressed by this study?2. Why is this question interesting?Page 2 of 3NB204 Spring 20073. What is the background to this paper? (In other words, what gap in the literature does this study fill, or what controversy does it help settle? As a non-expert, this may require a little bit of outside reading on your part.)4. How did the authors go about answering this question? Briefly summarize the design, experimental methods, and conclusions of the most important experiments in this study.5. What overall conclusions did the authors reach regarding the major question they undertook to answer?6. Point out major caveats in the study (if any), and outline obvious future directions of this research (if any).Feel free to address these points in whatever order makes the most sense. FINAL EXAMYour final exam will be to write one referee’s report and one commentary, each on a different paper assigned by the faculty at the end of the course. Use the feedback you receive on your homework to polish your writing skills within these two specific formats. Before starting to write, please review the big ideas presented in the four “concept lectures” during the semester. Think about what major concepts covered during the course this paper pertains to, and use your understanding of these concepts as you write your referee’s report and your commentary.Page 3 of