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Postdoc on EEG data analysis in Cleveland (immediately available)
by Roberto Fernández Galán May 22, 2014

May 22, 2014

A postdoctoral position on the statistical analysis of EEG data from children with autism and epilepsy is immediately available at Case Western Reserve University in Cleveland, USA. The position is funded by The Hartwell Foundation for a period of up to two years. The selected candidate will work under the supervision of Dr. Roberto F. Galán <http://neurosciences.case.edu/faculty/galan/index> in the department of neurosciences at CWRU. The project involves a collaboration with the department of pediatric neurology at University Hospitals on the same campus. The successful candidate must be a US citizen, have a PhD in biomedical engineering, computational neuroscience, or related discipline. Previous experience with the analysis of EEG, MEG, or MEA data is required. Proficiency in Matlab programming will be considered an asset. To apply for this position please send a cover letter, a CV including a list of publications and the names and contact information of two referees for recommendations to rfgalan(a)case.edu. Related Publications: J. L. Pérez Velázquez and R. F. Galán (2013). Information Gain in the Brain's Resting State: A New Perspective on Autism. *Frontiers in Neuroinformatics, 7(37):1 <http://journal.frontiersin.org/Journal/10.3389/fninf.2013.00037/abstract>*. A. R. Antony, A. V. Alexopoulos, J. A. González-Martínez, J. C. Mosher, L. Jehi, R. C. Burgess, N. K. So and R. F. Galán (2013). Functional Connectivity Estimated from Intracranial EEG Predicts Surgical Outcome in Intractable Temporal Lobe Epilepsy. *PLoS One, 8(10): e77916 <http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0077916>* . L. G. Domínguez, J. L. Pérez Velázquez and R. F. Galán (2013). A Model of Functional Brain Connectivity and Background Noise as a Biomarker for Cognitive Phenotypes: Application to Autism. *PLoS One, 8(4): e61493 <http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0061493>* . -- Roberto Fernández Galán, PhD Assistant Professor of Neurosciences Case Western Reserve University School of Medicine, Robbins E-725 10900 Euclid Avenue Cleveland OH, 44106-4975, USA Phone: (001) 216 368 0811 Email: rfgalan(a)case.edu http://www.case.edu/med/galanlab

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ICTP Winter School on Systems Neuroscience in Trieste, Dec 2014
by Alessandro Treves May 21, 2014

May 21, 2014

The Abdus Salam International Centre for Theoretical Physics is organizing a Winter School on Quantitative Systems Biology with a focus on System Neuroscience, from 1 to 12 December 2014, in Trieste, Italy. New experimental techniques are opening windows on biological mechanisms inside the cell and in the brain, making these systems accessible to quantitative investigation and calling for an understanding of brain functions at the systemic level. The school is targeted to young researchers, especially at the Ph.D and postdoc level who either work in this area or hope to do so. Lecturers include: Winfried Denk (Max Planck Inst., Germany) Stefano Fusi (Columbia, USA) Kate Jeffery (UCL, UK) Etienne Koechlin (ENS Paris, France) Venkatesh Murthy (Harvard, USA) Israel Nelken (Hebrew Univ., Israel) Botond Roska (FMI, Switzerland) Wolfram Schultz (Univ. Cambridge, UK) Tatyana Sharpee (Salk Institute, USA) Misha Tsodyks (Weizmann Institute, Israel) Fred Wolf (Univ. Göttingen, Germany) There is no participation fee for selected participants. DEADLINE for applications June 1st, 2014 Details on http://cdsagenda5.ictp.trieste.it/full_display.php?ida=a13235 -- Alessandro Treves http://people.sissa.it/~ale/limbo.html SISSA - Cognitive Neuroscience, via Bonomea 265, 34136 Trieste, Italy and Master in Complex Actions http://www.mca.sissa.it/

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PhD student positions in naturalistic visuomotor behavior
by Constantin Rothkopf May 21, 2014

May 21, 2014

Applications are invited for two PhD student positions in the lab of Constantin Rothkopf at the Technical University Darmstadt. The lab focuses on experimental and computational approaches to further the understanding of naturalistic, sequential visuomotor behavior in humans. Current topics include: - statistics of visuomotor behavior in naturalistic tasks, - image statistics in natural visuomotor behavior, - inverse-optimal-control models of human locomotion behavior, - optimal control models of interception behavior, - credit assignment in modular reinforcement learning models, - eye-movements in naturalistic tasks. For further information refer to the website: http://fias.uni-frankfurt.de/~rothkopf/ Ph.D. position applicants need to have a Master's degree in cognitive science, computer science, psychology or related fields. In addition to a general interest in experimental psychology, cognitive science, computational science, and interdisciplinary research, the ideal candidate has a background in eye-tracking or virtual reality technology. Experience with programming (e.g. Matlab, Python, C++) is inevitable. Analytical aptitude as well as awareness of experimental literature is expected. Informal inquiries may be made to Constantin Rothkopf at rothkopf(a)psychologie.tu-darmstadt.de. In your application please include a brief (max. 2 pages) cover letter explaining your research interests, what you are looking for in a PhD, why you would like to study in the lab, your longer term career goals, and contact information for 2-3 references. Applications may be submitted to the Dean of the Department of Human Sciences of the Technical University Darmstadt, Alexanderstraße 10, 64283 Darmstadt, in electronic form as a single pdf document via e-mail at: dekanat(a)humanw.tu-darmstadt.de. More details are available at: PhD position (ref.-no. 170) https://www.intern.tu-darmstadt.de/dez_vii/stellen/stellen_details_128192.d… The Technical University Darmstadt strives for an increase in the number of women in academic employment. Women are therefore especially encouraged to apply and will be preferentially considered under the condition of equal qualification. Disabled candidates are given preference under the provision of equal qualification. -- Prof. Constantin A. Rothkopf, PhD Technical University Darmstadt & FIAS phone: +49 6151 16-76084 mailto:rothkopf@psychologie.tu-darmstadt.de fax: +49 6151 16-6943 http://www.pip.tu-darmstadt.de/

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Announcement Special Session Neurotechnix 2014
by Martin Bogdan May 21, 2014

May 21, 2014

Dear colleagues, it's my pleasure to announce in behalf of my co-chairs a special session at Neurotechnix 2014, 25- 26 October, 2014 - Rome, Italy (http://www.neurotechnix.org/BrainRehab.aspx) Brain-computer Interfaces and Brain Stimulation for Neurorehabilitation Important Dates Paper Submission: July 17, 2014 Authors Notification: July 31, 2014 Camera Ready and Registration: August 8, 2014 Scope Brain-computer interfaces (BCIs) and brain stimulation are unique methods for neurorehabilitation because they allow a direct interaction with the patient's brain. BCIs enable biofeedback approaches for paralyzed patients, while brain stimulation techniques modulate the activity of neuronal circuits to support brain reorganization. However, towards their application as reliable treatment options, important challenges such as a deeper understanding of neural (re-)organization, the design of suitable feedback and stimulation paradigms, the adaptation to individual patients and the transfer from the laboratory to clinical settings need to be faced. We invite neuroscientists, engineers and clinicians to submit papers discussing recent developments and future trends in the fields of neurostimulation and BCIs with a focus on their application towards the rehabilitation of patients. Topics: - Brain-computer interfaces - Decoding of brain activity - Neurofeedback - Brain stimulation - Closed-loop stimulation systems - Chronic pain - Stroke, amyotrophic lateral sclerosis and other neurodegenerative diseases Paper Submission Prospective authors are invited to submit papers in any of the topics listed above. Instructions for preparing the manuscript (in Word and Latex formats) are available at: http://www.neurotechnix.org/GuidelinesTemplates.aspx#paper_templates Please also check the Guidelines and Templates. Papers should be submitted electronically via the web-based submission system at: http://www.insticc.org/Primoris Publication Both complete papers and extended abstracts can be submitted. All accepted extended abstracts will be published on CD-ROM without an ISBN, accepted papers will be published on CD-ROM support and in a special section of the congress proceedings book, under an ISBN reference. The proceedings are submitted for indexation by Thomson Reuters Conference Proceedings Citation Index (ISI), INSPEC, DBLP and EI (Elsevier Index). All papers and extended abstracts presented at the congress venue will also be made available at the SCITEPRESS DIGITAL LIBRARY. SCITEPRESS is member of CrossRef. -- ************************************************************************** Prof. Dr. Martin Bogdan Institut für Informatik Technische Informatik Universität Leipzig Augustusplatz 10 D-04109 Leipzig Germany Postadresse: PF 100920 D-04009 Leipzig Tel: (++49) 341 97 32208 Fax: (++49) 341 97 32252 E-mail: bogdan(a)informatik.uni-leipzig.de www.informatik.uni-leipzig.de/ti/ ************************************************************************** 'Nihil est ab omni parte beatum' (Horaz) **************************************************************************

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Postdoc in computer vision - joint position at IIT and Harvard
by Diego Sona May 20, 2014

May 20, 2014

IIT-Harvard joint postdoctoral position in computer vision, pattern recognition, and machine learning for the design and development of a virtual foraging system enriched with automatic behavior analysis tools. Available immediately and until filled. The project is highly interdisciplinary, including data analysis, machine learning, computer vision, neuroscience, behavior analysis, and engineering. The aim is to develop a virtual reality (VR) system for mice behavior phenotyping that integrate multiple recording devices and a library of software tools for advanced behavioral data analysis. Strong competences are required both in systems engineering and computer vision / machine learning. The candiate will periodically commute between Genoa (IIT) and Boston (Harvard). Further info can be found at http://www.iit.it/en/openings/research-departments/pattern-analysis-a-compu… Reference: BC 68073 --------------------------------------------------------- Dr. Diego Sona Pattern Analysis & Computer Vision (PAVIS) Istituto Italiano di Tecnologia (IIT) Genova, Italy www.iit.it/pavis.html ---------------------------------------------------------

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IEEE International Workshop on Cloud-integrated Cyber Physical Systems 2014 (IEEE Cloud-CPS 2014)
by Sandra Sendra May 20, 2014

May 20, 2014

********************************************************* CALL FOR PAPERS IEEE International Workshop on Cloud-integrated Cyber Physical Systems 2014 (IEEE Cloud-CPS 2014) Submission due July 31, 2014 http://cloudcps.cwins.org Dec 15 � 18, 2014, Singapore Singapore in conjunction with IEEE CloudCom 2014, Dec 15 � 18, 2014, Singapore ******************************************************************** Technology has gone through tremendous changes in terms of computing, communications and control to provide wide range of applications in all domains. This advancement provides the opportunities to bridge the physical components/processes and the cyber space leading to the Cyber Physical Systems (CPS). The notion of CPS is to use computing (sensing, analyzing, predicting, understanding, etc.), communication (interaction, intervene, interface management, etc.) and control (inter-operate, evolve, evidence-based certification, etc.) to make intelligent and autonomous systems. Such systems are playing an increasingly prevalent and important role in this electronic era such as healthcare, manufacturing, civil infrastructure, aerospace, entertainment, transportation and many automated physical systems. Computing and networking are two major components of CPS and Cloud has infinite resources for both. Cloud-integrated CPS will not only enhance CPS itself but also process, analyze! and manage (CPS) big data efficien tly. However, there are many issues and hurdles of Cloud-integrated CPS that need discussions. Our aim is to provide a platform for researchers and practitioners to present their research results in the area of Cloud-integrated Cyber-Physical Systems. The proposed workshop CloudCPS-2014 will serve as a forum for researchers from academia, government and industries to exchange ideas, present new results and provide future visions on these topics. Topics of interest include but not limited to: - Cloud-CPS Architecture - Cloud-CPS Modeling and Simulation - Virtualization of Physical Components in Cloud-CPS - Design and Performance Optimization in Cloud-CPS - Cloud-assisted Situation-aware and decision support - Big-data Processing and Visualization in Cloud-CPS - Mobile Cloud-CPS - Game Theory for Cloud-CPS - Tools and Methods for Cloud-CPS - Sensor-actuator Networks - Security, Privacy, and Trust in Cloud-CPS - Intelligent (Road/Air) Transportation Cloud-CPS - Cloud-CPS in healthcare - Cloud-CPS in energy - Fog computing - Cloud-CPS: Tools, test beds and deployment issues - Opportunistic spectrum access for Cloud-CPS ***************************** SUBMISSION INSTRUCTIONS ***************************** The authors are advised to submit their research paper following the IEEE CS format: two columns, single-spaced, including figures and references, using 10 fonts, and number each page. Instructions for authors how to format the manuscript can be found at: http://www.computer.org/portal/web/cscps/submission/ http://www.computer.org/portal/web/cscps/formatting/ The following templates below, are general templates designed for conferences using an US Letter (8.5" x 11") trim size. MS Word Template: http://www.computer.org/portal/c/document_library/get_file?uuid=4cc57ba2-39… LaTeX Package: http://www.computer.org/portal/c/document_library/get_file?uuid=cda2f9b2-51… Papers will be carefully evaluated based on originality, significance, technical soundness, and clarity of exposition. The papers, in pdf format, should be submitted electronically through https://www.easychair.org/conferences/?conf=ieeecloudcps2014. If there is any problem during submission, please contact the workshop general chairs or db.rawat(at)ieee.org. All accepted papers will be published by IEEE CS Press (submitted to IEEEXplore) and submitted for indexing by EI and ISSN. *********************** Important Dates *********************** Deadline for paper submissions: July 31, 2014 Notification of Paper acceptance: Sept. 2, 2014 Deadline for camera-ready: Sept.16, 2014 Deadline for author registration: Oct. 1, 2014 Conference: December 15-18, 2014 WORKSHOP WEBSITE For more information, please visit the workshop website at http://cloudcps.cwins.org ++++++++++++++++ Organizers ++++++++++++++++ **************** General Chairs **************** Ivan Stojmenovic, University of Ottawa, Canada Danda B. Rawat, Georgia Southern University, USA Jaime Lloret Mauri, Polytechnic University of Valencia, Spain ****************** Program Chairs ****************** Bhed B. Bista, Iwate Prefectural University, Japan Song Guo, The University of Aizu, Japan ******************* Publicity Chairs ******************* Sandra Sendra, Polytechnic University of Valencia, Spain

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Postdoctoral vacancies in London
by Harris, Kenneth May 19, 2014

May 19, 2014

Dear Computational Neuroscientists, We are seeking applicants for 3 postdoctoral jobs at the interface of computational and experimental neuroscience, working with Profs. Kenneth Harris and Matteo Carandini. The closing date for all positions is June 14 2014. For details on how to apply, please see https://www.ucl.ac.uk/cortexlab/positions. Position 1: Large-scale analysis of neocortical activity Modern experimental methods allow for simultaneous recording of thousands of neurons. These methods provide an unprecedented opportunity to study how neuronal populations process information. However, turning this data into concrete conclusions about brain function raises a twofold challenge. First, statistical methods required to characterize, visualize, and test hypotheses about neural data must be developed; second, the data sets involved are so large that they require advanced computational techniques for their efficient processing. We are seeking a postdoctoral scientist to study population coding and circuit function in cortex, by working with data from large-scale electrophysiological and optical recordings. This position would suit an individual with strong quantitative skills together with good knowledge of neurobiology. Position 2: Large-scale simulation of cortical circuits Recent years have seen the development of techniques for rapid simulation of neural circuits, making it at last possible to model how cellular and synaptic properties determine cortical activity in circuits of realistic size. We are seeking a postdoctoral scientist to build large-scale models of recurrent spiking cortical networks, using hardware systems such as large-scale GPGPU clusters or specialized chips such as spiNNaker. Close interaction with experimental neuroscience will be a key part of the project, and the models will be constrained by their ability to both reproduce patterns of population activity measured in vivo, and to perform real-world visual classification tasks. This project involves the use of specialized hardware, and would suit a candidate with strong programming ability as well as neuroscience knowledge. Position 3: Experimental study of cortical population activity Developments in electrophysiology, microscopy, and genetics now make it possible to measure the activity of thousands of neurons simultaneously, while identifying and controlling specific cell classes in real time with light. Combining these experimental technologies with large-scale informatics and computational analysis provides a tremendous tool to understand the function of cortical circuits. We are seeking a postdoctoral scientist to apply these tools to study network activity during a visual discrimination task in behaving mice. This project involves integrating multiple techniques currently in use in our lab including large-scale electrophysiological recordings, optogenetics, two-photon microscopy, and mouse behaviour. This position would suit a candidate with a background in experimental neurobiology, engineering, or experimental physics. --------------------- Kenneth D. Harris Professor of Quantitative Neuroscience Institute of Neurology, Department of Neuroscience, Physiology, and Pharmacology University College London 21 University Street London WC1E 6DE Phone: +44 (0)20 3108 2410

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new Frontiers journal section "Computational Intelligence"
by Claudius Gros May 19, 2014

May 19, 2014

This is to to call your attention to a new Frontiers journal section "Computational Intelligence" http://www.frontiersin.org/Computational_Intelligence within Robotics and AI. The first articles have been published: --------------------- Rodrigo Echeveste and Claudius Gros Generating functionals for computational intelligence: The Fisher information as an objective function for self-limiting Hebbian learning rules http://journal.frontiersin.org/Journal/10.3389/frobt.2014.00001/abstract --------------------- --------------------- Mikhail Prokopenko Grand challenges for Computational Intelligence http://journal.frontiersin.org/Journal/10.3389/frobt.2014.00002/full --------------------- We invite you to submit your research! Claudius Gros ***************************************** *** Prof. Dr. Claudius Gros *** *** +49 (0)69 798 47818 *** *** http://itp.uni-frankfurt.de/~gros *** ***************************************** -------------------------------------------------------- --- Complex and Adaptive Dynamical Systems, A Primer --- --- A graduate-level textbook, Springer (2008/10/13) --- --------------------------------------------------------

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post-doc position: “The informational structure of audio-visuo-motor speech”
by Pierre Bessière May 18, 2014

May 18, 2014

Speech Unit(e)s The multisensory-motor unity of speech Understanding how speech unites the sensory and motor streams, And how speech units emerge from perceptuo-motor interactions ERC Advanced Grant, Jean-Luc Schwartz, GIPSA-Lab, Grenoble, France Proposal for a post-doc position beginning in September 2014: “The informational structure of audio-visuo-motor speech” Context The Speech Unit(e)s project is focused on the speech unification process associating the auditory, visual and motor streams in the human brain, in an interdisciplinary approach combining cognitive psychology, neurosciences, phonetics (both descriptive and developmental) and computational models. The framework is provided by the “Perception-for-Action-Control Theory (PACT)” developed by the PI (Schwartz et al., 2012). PACT is a perceptuo-motor theory of speech communication connecting, in a principled way, perceptual shaping and motor procedural knowledge in speech multisensory processing. The communication unit in PACT is neither a sound nor a gesture but a perceptually shaped gesture, that is a perceptuo-motor unit. It is characterized by both articulatory coherence – provided by its gestural nature – and perceptual value – necessary for being functional. PACT considers two roles for the perceptuo-motor link in speech perception: online unification of the sensory and motor streams through audio-visuo-motor binding, and offline joint emergence of the perceptual and motor repertoires in speech development. Objectives of the post-doc position In a multisensory-motor context such as the present one, a major requirement concerns a better knowledge of the structure of the information. Speech scientists have acquired a very good knowledge of the structure of speech acoustics, capitalizing on large audio corpora and up-to-date statistical techniques (mostly based on sophisticated implementations of Hidden Markov Models, e.g. Schutz & Waibel, 2001, Yu & Deng, 2011). Data on speech rhythms, in relation with the syllabic structure, have been analyzed clearly in a number of works (Greenberg, 1999; Grant & Greenberg, 2003). In spite of strong efforts in the field of audiovisual speech automatic recognition (Potamianos et al., 2003), characterization of the structure of audiovisual information is scarce. While an increasing number of papers on audiovisual speech perception presenting cognitive and neurophysiological data quote the “advance of the visual stream on the audio stream”, few papers provide quantitative evidence (see Chandrasekaran et al., 2009) and when they do, these are sometimes mistaken or oversimplified. Actually, the temporal relationship between visual and auditory information is far from constant from one situation to another (Troille et al., 2010). Concerning the perceptuo-motor link, the situation is even worse. Few systematic quantitative studies are available because of the difficulty to acquire articulatory data, and in these studies the focus is generally set on the so-called “inversion problem” (e.g. Ananthakrishnan & Engwall, 2011, Hueber et al., 2012) rather than a systematic characterization of the structure of the perceptuo-motor relationship. Finally, there is a strong lack of systematic investigations of the relationship between orofacial and bracchio-manual gestures in face-to-face communication. We shall gather a large corpus of audio-visuo-articulatory-gestural speech. Articulatory data will be acquired through ultrasound, electromagnetic articulography (EMA) and video imaging. Labial configurations and estimates of jaw movements will be automatically extracted and processed thanks to a large range of video facial processing. We also additionally plan to record information about accompanying coverbal gestures by the hand and arm, thanks to an optotrack system enabling to track bracchio-manual gestures. A complete equipment for audio-video-ultrasound-EMA-optotrack acquisition and automatic processing, named ultraspeech-tools, is available in Grenoble (more information on www.ultraspeech.com) The corpus will consist in isolated syllables, chained syllables, simple sentences and read material. Elicitation paradigms will associate reading tasks (with material presented on a computer screen) and dialogic situations between the subject and an experimenter to evoke coverbal gestures as ecologically as possible. The corpus will be analyzed, by extensive use and possibly development of original techniques, based on data–driven statistical models and machine learning algorithms, in the search for three major types of characteristics: 1) Quantification of auditory, visual and motor rhythms, from kinematic data – e.g. acoustic envelope, lip height and/or width, variations in time of the principal components of the tongue deformations, analysis of the arm/hand/finger dynamics; 2) Quantification of delays between sound, lips, tongue and hand in various kinds of configurations associated with coarticulation processes (e.g. vowel to vowel anticipatory and perseverative phenomena, consonant-vowel coproduction, vocal tract preparatory movement in silence) and oral/gestural coordination; 3) Quantification of the amount of predictability between lips, tongue, hand and sound, through various techniques allowing the quantitative estimate of joint information (e.g. mutual information, entropy, co-inertia) and perform statistical inference between modalities (e.g. Graphical models such as dynamic Bayesian Framework, multi-stream HMM, etc.) The work will be performed within a multidisciplinary group in GIPSA-Lab Grenoble, associating specialists in speech and gesture communication, cognitive processes, signal processing and machine learning (partners of the project: Jean-Luc Schwartz, Marion Dohen from the “Speech, Brain, Multimodality Development” team; Thomas Hueber, Laurent Girin from the “Talking Machines and Face to Face Interaction” team; Pierre-Olivier Amblard and Olivier Michel from the “Information in Complex Systems” team). Practical information The post-doc position is open for a two-year period, with a possible third-year prolongation. The position is open from September 2014, or slightly later if necessary. Candidates should have a background in speech and signal processing, face-to-face communication, and machine learning, or at least two of these three domains. Candidates should send as soon as possible a short email to Jean-Luc Schwartz (Jean-Luc.Schwartz(a)gipsa-lab.grenoble-inp.fr) to declare their intention to submit a full proposal. Then they must send a full application file in the next weeks. This application file will include an extended CV and a list of publications, together with a letter explaining why they are interested in the project, what their specific interests could be, possibly suggesting other experiments related to the general question of the informational structure of audio-visuo-motor speech, and also how this position would fit into their future plans for the development of their own career. They should also provide two names (with email addresses) for recommendations about their applications. Preselected candidates will be interviewed. Final selection should occur before mid-June.

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PhD position: “Bayesian model of the joint development of perception, action and phonology”
by Pierre Bessière May 18, 2014

May 18, 2014

Proposal for a PhD position beginning in September 2014: “Bayesian model of the joint development of perception, action and phonology” Context The Speech Unit(e)s project is focused on the speech unification process associating the auditory, visual and motor streams in the human brain, in an interdisciplinary approach combining cognitive psychology, neurosciences, phonetics (both descriptive and developmental) and computational models. The framework is provided by the “Perception-for-Action-Control Theory (PACT)” developed by the PI (Schwartz et al., 2012). PACT is a perceptuo-motor theory of speech communication, which connects in a principled way perceptual shaping and motor procedural knowledge in speech multisensory processing. The communication unit in PACT is neither a sound nor a gesture but a perceptually shaped gesture, that is a perceptuo-motor unit. It is characterised by both articulatory coherence – provided by its gestural nature – and perceptual value – necessary for being functional. PACT considers two roles for the perceptuo-motor link in speech perception: online unification of the sensory and motor streams through audio-visuo-motor binding, and offline joint emergence of the perceptual and motor repertoires in speech development. Objectives of the PhD position In the debates between auditory and motor theories of speech perception, and in their modern revival concerning the role of the dorsal route (Hickok & Poeppel, 2004, 2007), there is no real reflexion about what could be the functional role of a perceptuo-motor coupling for speech perception. The “dorsal route” is supposed to be useful in “adverse conditions”, e.g. in noise or with a foreign language (Callan et al., 2004; Zekveld et al., 2006). But no theoretical explanation is actually proposed for this potential efficiency of motor processes in adverse conditions. We have recently developed a computational framework enabling to compare the predictions of auditory, motor and perceptuo-motor theories in various kinds of situations (Moulin-Frier et al., 2012). Casting these theories into a single, unified mathematical framework is an efficient way to compare the theories and their properties in a systematic manner. Bayesian modeling is a mathematical framework that precisely allows such comparisons. The trick is that the same tool, namely probabilities, can be used both for defining the models and for comparing them (see e.g. Myung & Pitt, 2009). The generic model we developed is called COSMO, which stands for "Communicating about Objects using Sensory-Motor Operations". The COSMO acronym also represents the five variables around which the basic structure of the model is built. In COSMO, communication (C) is a success when an object OS in the speaker’s mind is transferred, via sensory and motor means S and M, to the listener’s mind where it is correctly recovered as OL. COSMO assumes that a communicating agent, which is both a speaker and a listener, internalizes the communication situation inside an internal model. The PhD project aims at developing COSMO in two major directions. (1) Joint acquisition of perceptual and motor repertoires in a syllabic framework. Experiments in COSMO have mainly concerned simple stimuli, e.g. in abstract one-dimensional sensory-motor spaces, or with restricted vowel samples. We will explore strategies for automatically learning to produce and perceive complex sequences such as plosive-vowel CV sequences, which display systematic coarticulation phenomena. Various kinds of exploration and learning mechanisms are available from cognitive and developmental robotics (Moulin-Frier & Oudeyer, 2012). Validation tests will be inspired from real data, on e.g. locus equations for plosive acoustics (Sussman et al., 1998), robustness to perturbations in production (Lindblom et al., 1979; Savariaux et al., 1995), or coupling of perceptual and motor idiosyncrasies. (2) Comparison of auditory, motor and perceptuo-motor theories for speech processing in various conditions. Once these perception and production components will be settled in COSMO, we will compare auditory, motor and perceptuo-motor speech perception theories in challenging conditions, such as noise, speaker normalization, or foreign accent. We will test the ability to develop a perceptuo-motor phonology from auditory and motor experience, e.g. to acquire a category such as “plosive place of articulation” through the discovery of perceptuo-motor links in learning. We will also test COSMO on natural CV stimuli, exploiting natural multi-speaker corpora of CV sequences for learning and perceptual tests. The work will be realized within a multidisciplinary team gathering knowledge in speech communication, cognitive theories and Bayesian modeling (Jean-Luc Schwartz in GIPSA-Lab Grenoble, Julien Diard in LPNC Grenoble, Pierre Bessière in ISIR Paris), in collaboration with Pierre-Yves Oudeyer in INRIA Bordeaux. Practical information The PhD position is open from September 2014, or slightly later if necessary. Candidates should have a master, some knowledge about speech and cognitive modeling, and ability to program and to develop computational models. They must send a CV, together with a letter explaining why they are interested in the project. They should also provide two names (with email addresses) for recommendations about their applications. This should be send before June 15th to Jean-Luc Schwartz (Jean-Luc.Schwartz(a)gipsa-lab.grenoble-inp.fr) Interviews will be done with preselected candidates. Decision will occur in the following weeks.

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