Victoria University School of Psychology PSYC 444 Behavioural Neuroscience 2009 Second trimester Co-ordinator: Jan Lauwereyns, Associate Professor EA 619 463 5042 Jan.Lauwereyns@vuw.ac.nz Office hours: By appointment Office Hours: by appointment Class times: 1pm – 3pm Monday Location: EA411 Exam Period: All in-class assessment Course Content: One of the primary goals of behavioural neuroscience is to develop linking propositions between perception and action. Confronted with multiple sources of information, an individual has to choose one of several alternative courses of action. How does the information-processing system prioritize information and/or alternative courses of action in order to interact successfully with the environment? There are, broadly speaking, two planes on which the system can operate: It can prioritize a subset of the incoming information, and so enhance the sensitivity of perceptual processes; or it can selectively prepare a particular course of action, that is, create a form of response bias. In this class we will discuss how effects of sensitivity versus bias can be observed in a wide range of psychological and neuroscientific experiments, including single-unit recordings (measuring action potentials of individual neurons) and functional imaging (measuring cerebral blood flow). We will examine what the current literature can tell us about the underlying principles and neural mechanisms of perceptual sensitivity and response bias. For each session, we will have one or two focus papers. Students are asked to thoroughly read these focus papers and use them as landmarks for their own survey of the topic. The course is composed of: 1. A series of readings introducing basic areas of knowledge in behavioural neuroscience. 2. Skill building exercises, including: critically reviewing articles, observational techniques, graphing & analytical skills. 3. A practical component that will require students to design new experiments. 4. Discussion-based classes. Students will be expected to read key references with the aim of addressing various questions or issues and be ready to discuss them. Course Objectives: At the end of the course students should: 1. Be able to critically review and succinctly report the research pertaining to specific topics in the area of behavioural neuroscience. 2. Be familiar with the development & analysis of experiments within behavioural and cognitive neuroscience. 3. Be able to describe the interaction of individuals with the environment in terms of cognitive information processing. 4. Be able to design new experiments to address relevant conceptual issues. Expected workload: This is a 15 point course; an average of 10 hours per week should be sufficient, including time for reading, critical review, and preparation of assignments. Group work: Not applicable. Readings: Most of the material students will be expected to read is published in journals and students will need to read between one and five articles per week. Reading lists will be supplied throughout the course, however students will also be required to conduct their own independent reviews of the literature. Materials and equipment: No specific requirements. Assessment requirements: Students will be assessed as follows: There will be one in-class test at the end of the trimester, on 12 October 2009, which counts toward 40% of the grade. The test will comprise three essays (from a list of six topics) of up to 400 words each, and will last two hours. The test is designed to examine whether students have met course objectives 2 and 3. There will be two written assignments, each counting toward 30% of the grade. The first assignment will be a critical literature review on a topic of choice (word count: minimum 1,500 words, maximum 2,500 words), due by 7 September 2009. This assignment is designed to examine whether students have met course objective 1. The second assignment will be a research proposal on a topic of choice (word count: minimum 800 words, maximum 1,500 words), due by 5 October 2009. This assignment is designed to examine whether students have met course objective 4. There are no other requirements. There are no specific aegrotat implications of optional assessment. Penalties: No specific penalties. If students fail to participate in an in-class test, they will receive a zero for that test, unless they can present valid documentation to excuse their absence (e.g., a medical certificate). In this case, the student will be allowed to take the test at an alternative time within one week of the scheduled time for the in-class test. If students do not turn in an assignment by the designated time, they will receive a zero for the assignment, unless they can present valid documentation to excuse a late submission (e.g., a medical certificate). In this case, an extension of up to one week may be granted at the discretion of the course coordinator. Responsibilities for practicum arrangements: Not applicable. Mandatory Course Requirements: No specific requirements. Communication of additional information: Students will be asked to provide E-mail address for communication of additional information. Documents (e.g., pdf files) will be made available by E-mail. Schedule L1 13 July Classic concepts of decision making, bias and sensitivity L2 20 July How can we separate effects of sensitivity versus bias in behavioral data? Carpenter, R. H. S. (1999). A neural mechanism that randomizes behaviour. Journal of Consciousness Studies, 6, 1322. Hollingworth, A., & Henderson, J. M. (1998). Does consistent scene context facilitate object perception? Journal of Experimental Psychology General, 127, 398-415. L3 27 July The decision threshold: Neurophysiological evidence Hanes, D. P., & Schall, J. D. (1996). Neural control of voluntary movement initiation. Science, 274, 427-430. Churchland, A.K., Kiani, R., & Shadlen, M.N. (2008). Decision-making with multiple alternatives. Nature Neuroscience, 11, 693-702. L4 3 August Models of decision making Glimcher, P. W. (2002). Decisions, decisions, decisions: Choosing a biological science of choice. Neuron, 36, 323332. Gold, J. I., & Shadlen, M. N. (2001). Neural computations that underlie decisions about sensory stimuli. Trends in Cognitive Sciences, 5, 10-16. L5 10 August The dopamine circuit, reward & information processing: underlying mechanisms Dommett, E., Coizet, V., Blaha, C.D., Martindale, J., Lefebvre, V., Walton, N., Mayhew, J.E.W., Overton, P.G., & Redgrave, P. (2005). How visual stimuli activate dopaminergic neurons at short latency. Science, 307, 1476-1479. Reynolds, J. N. J., Hyland, B. I., & Wickens, J. R. (2001). A cellular mechanism of reward-related learning. Nature, 413, 67-70. L6 17 August Reward & decision making: Neurophysiology Matsumoto, M., & Hikosaka, O. (2009). Two types of dopamine neuron distinctly convey positive and negative motivational signals. Nature, 459, 837-841. Tobler, P.N., Fiorillo, C.D., & Schultz, W. (2005). Adaptive coding of reward value by dopamine neurons. Science, 307, 1642-1645. Mid-trimester break L7 7 September Response bias: A way to implement reward value? Lauwereyns, J., Takikawa, Y., Kawagoe, R., Kobayashi, S., Koizumi, M., Coe, B., Sakagami, M., & Hikosaka, O. (2002). Feature-based anticipation of cues that predict reward in monkey caudate nucleus. Neuron, 33, 463-473. Lauwereyns, J, Watanabe, K., Coe, B., & Hikosaka, O. (2002). A neural correlate of response bias in monkey caudate nucleus. Nature, 418, 413-417. L8 14 September Attention and the interface between perception and action L9 21 September Reward & decision making: functional MRI L10 28 September “Neuro-economics”: functional MRI L11 5 October Future directions, game theory Test 12 October In-class Test GENERAL UNIVERSITY POLICIES AND STATUTES Students should familiarise themselves with the University’s policies and statutes, particularly the Assessment Statute, the Personal Courses of Study Statute, the Statute on Student Conduct and any statutes relating to the particular qualifications being studied; see the Victoria University Calendar or the University’s policy website, http://www.victoria.ac.nz/home/about/policy Student and staff conduct The Statute on Student Conduct together with the Policy on Staff Conduct ensure that members of the University community are able to work, learn, study and participate in the academic and social aspects of the University’s life in an atmosphere of safety and respect. 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