PPT-Neural mechanisms of sound localization

How the brain calculates interaural time and intensity differences Bottom line Calculation of interaural differences in the brain depends on wiring and a balance between neural excitation and inhibition. Nature of the Sound Stimulus. “Sound”. . is the rhythmic compression and decompression of the air around us caused by a vibrating object.. Applet. Applet2. Sound Wave:. Amplitude and Frequency (Hz). Midterm 1 Feb 3. rd. and 4. th. . Midterm 2 March 9. th. and 10. th. Final April 20. th. and 21. st. Idea journal assignment is due on last day of class. Textbooks. Sensation and Perception. Fundamentals of Sensation. WELCOME. to the inaugural. Game Localization Summit @ GDC. Co-Advisors of the Game Localization Summit and chairs of the . IGDA Localization SIG:. Miguel Á. Bernal-Merino . (Roehampton University), SIG Vice-Chair. Learning Objectives. Understand why WSNs need localization protocols. Understand localization protocols in WSNs. Understand secure localization protocols. Prerequisites. Module 7. Basic concepts of network security. Chapter 4. Sensations and Perceptions. Sensation- the process by which a stimulated receptor (such as eyes or ears or other senses) creates a pattern of neural messages that brain interprets. Sensation represents the first series of steps in processing incoming information.. Zhiyong Yang. Brain and Behavior Discovery Institute. James and Jean Culver Vision . Discovery Institute. Department of Ophthalmology. Georgia Regents University. April. . 4, 2013. Outline. A model of pattern recognition . Lesson 2. Starter one. From last lesson. What should an evaluation include? . Write on my board. Activity- Neural pub quiz- Group work. Create . four . questions based on homework on neural mechanisms and a . Specific Issues in experimental design and implementation. II-A. The “schizophrenias” (. Bleuler. ) are neurobiological disorders . diagnosed solely on . the basis of . behavioral. changes . Schizophrenia . Lesson 2. Outline neural mechanism as an explanation of aggression. Evaluate neural mechanism as an explanation of aggression.. Starter one. From last lesson. What should an evaluation include? . Write on a board. David Johnson. cs6370. Basic Problem. Go from this to this. [Thrun, Burgard & Fox (2005)]. . Kalman . Filter. [Thrun, Burgard & Fox (2005)]. . Kalman Limitations. Need initial state and confidence. Lesson three. Neural mechanisms. How does the research support the N.M theory?. Crockett et al (2008). carried out a repeated measures experiment on 20 participants. . In . both conditions the participants had fasted and were given a protein drink in the morning before taking part in the study. The difference in the drink was the difference in the conditions: one drink contained tryptophan, which the body needs to make serotonin; the other drink did not contain it. On both days that the study took place participants played the ultimatum game. In this game one player poses a way to split a sum of money with a partner. In the condition where the participants had had the drink that did not contain tryptophan (so their serotonin levels were low) they showed increased aggression toward offers they perceived to be unfair.. David Griesinger. David Griesinger Acoustics. dgriesinger@verizon.net. www.davidgriesinger.com. Source Localization Requires Separation from other signals and noise . This talk will present and demonstrate a model of hearing that largely explains how sound separation works, and when it will cease to work in poor acoustics.. , and the . Myths . of . Sound Localization. David Griesinger. David Griesinger Acoustics. dgriesinger@verizon.net. www.davidgriesinger.com. Sound Localization in Natural Hearing. The sensitivity of human hearing is weighted to the frequencies of vocal formants.. Article and Work by. : Justin . Salamon. and Juan Pablo Bello. Presented by . : . Dhara. Rana. Overall Goal of Paper. Create a way to classify environmental sound given an audio clip. Other methods of sound classification: (1) dictionary learning and (2) wavelet filter banks .