Contact

G. Rodrigo Sigala Alanis

Address: Spemannstr. 38
72076 Tübingen
Room number: 133

 

Picture of Sigala Alanis, G. Rodrigo

G. Rodrigo Sigala Alanis

Position: PhD Student  Unit: Alumni Logothetis

My doctoral studies were focused on investigating the neural correlates of face categorization in human and monkey observers, under the supervision of Prof. Gregor Rainer. In this project we first created a novel set of face stimuli along a continuum between human and monkey faces (morphs). We performed extensive behavioral experiments in both type of observers, recorded extracellular signals in awake monkeys (single units and local field potentials) as well as fMRI activation in human subjects. Additional to conventional analytic techniques, we combined signal processing, machine learning and information theory to read-out information from the recorded signals.

From 2009 to 2011 I was a collaborator in the BION project, which is an effort of the European Union to bring scientists from different universities (Parma and Pisa, Italy and Warwick, UK) and disciplines (physics, material sciences, nano-electronics, chemistry and neuroscience) to develop a new promising technology. The main idea is to use biological cognitive systems as a benchmark and inspiration to fabricate complex material assemblies which can learn, make decisions, analyze information in a highly parallel way.

Currently, I work as a postdoc at the Bernstein Center for Computational Neuroscience/Charite Clinic in Berlin, in the independet reasaerch group ‘Brain Modes’ headed by Petra Ritter:

http://www.bccn-berlin.de/People/home/?contentId=2038

Synthetic pathways to bio-inspired information processing.

This project was carried out at the Universities of Parma and Pisa, in cooperation with the University of Warwick and our group. It aims at the fabrication of a new hardware made of conducting polymers with adaptive properties. The intention is to imitate the cerebral cortex with its statistical connectivity, modifiable by learning processes, and its associative properties. http://www.fp7-bion.eu/

Neural representation of species-dependent face categories in the primate brain.

This project investigates how information about monkeys and human face categories are represented in the human and non-human primate brain.

RODRIGO SIGALA

rodrigosigala@yahoo.com

EDUCATION

PhD on Neural and Behavioral Sciences (2005 - 2011)

Max-Planck Institute for Biological Cybernetics, Dept. Physiology of Cognitive Processes (Nikos Logothetis Lab), Tuebingen, Germany.

M.Sc. on Neural and Behavioral Sciences (2002 - 2004)

Max Planck International Research School and University of Tuebingen

B.Sc. Computer Engineering (with ‘Honors’ and see also‘Awards’ below) 1996- 2002

Mexican Autonomous Institute of Technology (ITAM)

EXPERIENCE

Postdoc at the Independent Research Group ‘Brain Modes’ (Head: Petra Ritter) (since Feb 2012)

Bernstein Center for Computational Neuroscience, Department of Neurology, Charité Berlin, Germany. Ultra-fast EEG-fMRI and EEG-triggered stimulation during EEG-fMRI

Postdoc at the Max Planck Institute for Biological Cybernetics, Tuebingen, Germany (2010-2011)

BION Project: ‘A step towards the synthetic brain’ In collaboration with the Universities of Parma, Pisa, Italy as well as the University of Warwick in the UK.

FURTHER EXPERIENCE AND COLLABORATIONS

Internship, Justin Gardner’s Lab, Brain Sciences institute, RIKEN, Tokyo, Japan (2010)

Investigating attention effects on the visual cortex. Psychophysic experiments and high resolution FMRI in human subjects.

Internship, Center for Biological and Computational Learning (CBCL), Massachusetts Institute of Technology (MIT), Massachusetts, US  (2004)

Investigating learning mechanisms in a hierarchical feedforward model of the primate cortex for object and motion recognition (Master Thesis)

SELECTED COURSES

BSI-RIKEN Summer School and Internship Program (Mind and Intelligence Research Core) (July – August 2010)

Telluride, Colorado, US. Neuromorphic Engineering Workshop (Institute of Neuromorphic Engineering) (July 2008)

SKILLS

Experimental design, presentation skills, team work, analysis of brain signals (electrophysiological and BOLD), 3D Morphing Techniques, signal processing, machine learning (Pattern recognition). Software: C++, C, Matlab, 3D Studio Max.

AWARDS

2002 Best undergraduate student in the Computer Engineering Faculty-ITAM (considering whole studies and final thesis) by the National (Mexican) Association of Engineering Schools and Faculties (Asociación Nacional de Escuelas y Facultades de Ingeniería, ANEFI).

03/2002-9/2002 DAAD german language course scholarship (Universität Leipzig Herder-Institut)

2002-2004 Max Planck Society Scholarship for undergraduate students.

Selected travel grants: BSI-RIKEN Summer School Program (2010), Tokyo, Japan; European Future Technologies (FET 2009), Prague, Czech Republic; Frontiers on Neuroinformatics Conference (2008), Stockholm, Sweden; Neuromorphic Engineering Workshop (2008), Telluride, US; International Conference on Artificial Neural Networks (ICANN 2005) by the European Neural Networks Society.

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Books (1):

Sigala R: Investigating the neural representation of face categories, 144, Logos Verlag, Berlin, Germany, (2011). ISBN: 978-3-8325-2991-8, Series: MPI Series in Biological Cybernetics ; 30

Articles (4):

Sigala R, Smerieri A, Schüz A, Camorani P and Erokhin V (September-2013) Modeling and simulating the adaptive electrical properties of stochastic polymeric 3D networks Modelling and Simulation in Materials Science and Engineering 21(7) 1-17.
Erokhin V, Berzina T, Gorshkov K, Camorani P, Pucci A, Ricci L, Ruggeri G, Sigala R and Schüz A (September-2012) Stochastic hybrid 3D matrix: learning and adaptation of electrical properties Journal of Materials Chemistry 22(43) 22881-22887.
Sigala R, Logothetis NK and Rainer G (June-2011) Own-species bias in the representations of monkey and human face categories in the primate temporal lobe Journal of Neurophysiology 105(6) 2740-2752.
Sigala R and Rainer G (January-2007) Visual neuroscience: face-encoding mechanisms revealed by adaptation Current Biology 17(1) R20-R22.

Conference papers (3):

Sigala R, Smerieri A and Erokhin V (May-2011) Adaptive Properties of Stochastic Memristor Networks: A Computational Study In: Procedia Computer Science Volume 7, , 2nd European Future Technologies Conference and Exhibition (FET 11), Elsevier, Amsterdam, Netherlands, 312-313.
pdf
Sigala R, Serre T, Poggio T and Giese M (September-2005) Learning features of intermediate complexity for the recognition of biological motion In: Artificial Neural Networks: Biological Inspirations – ICANN 2005, , 15th International Conference on Artificial Neural Networks, Springer, Berlin, Germany, 241-246, Series: Lecture Notes in Computer Science ; 3696.
Weitzenfeld A, Cervantes F and Sigala R (July-2001) NSL/ASL: Simulation of Neural based Visuomotor Systems, 2001 International Joint Conference on Neural Networks (IJCNN '01), IEEE Service Center, Piscataway, NJ, USA, 1065-1070.

Posters (18):

Sigala Alanis GR, Schultz J, Logothetis NK and Rainer G (November-2010): "Own-species" bias in the categorical representation of a human/monkey continuum in the human and non-human primate temporal lobe, 40th Annual Meeting of the Society for Neuroscience (Neuroscience 2010), San Diego, CA, USA.
Sigala R, Schultz J, Logothetis NK and Rainer G (June-2010): Categorical Representation of a Human/Monkey Face Continum in the Human and Non-Human Primate Temporal Lobe, AREADNE 2010: Research in Encoding And Decoding of Neural Ensembles, Santorini, Greece.
Sigala Alanis GR, Veit J, Logothetis NK and Rainer G (October-2009): Category selectivity in features of the local field potentials and single cell activity simultaneously recorded from the inferior temporal cortex of the macaque monkey, 39th Annual Meeting of the Society for Neuroscience (Neuroscience 2009), Chicago, IL, USA.
Sigala R, Veit J, Logothetis NK and Rainer G (August-2009): Encoding of object and face categories by simultaneously recorded local field potentials and single cell activity in the inferior temporal cortex of the macaque monkey, 32nd European Conference on Visual Perception, Regensburg, Germany, Perception, 38(ECVP Abstract Supplement) 78.
Sigala Alanis GR, Logothetis NK and Rainer G (April-2009): Neural encoding of face-categories in the macaque temporal cortex, European Future Technologies Conference (FET 2009), Praha, Czech Republic.
Sigala Alanis GR, Veit J, Logothetis NK and Rainer G (November-2008): Timing of local field potential (LFP) responses in primate inferior temporal (IT) cortex distinguishes between monkey faces, human faces and objects, 38th Annual Meeting of the Society for Neuroscience (Neuroscience 2008), Washington, DC, USA.
Sigala RA, Logothetis NK and Rainer G (September-2008): Decoding the perceptual boundary of human/monkey face categories from a population of neurons in the Inferior-Temporal (IT) cortex of the macaque monkey brain, 1st INCF Congress of Neuroinformatics: Databasing and Modeling the Brain, Stockholm, Sweden, Frontiers in Neuroinformatics, Conference Abstract: Neuroinformatics 2008.
Sigala R (November-27-2007): Face categories in the interior-temporal cortex of the macaque monkey, 8th Conference of Tuebingen Junior Neuroscientists (NeNa 2007), Freudenstadt, Germany.
Alanis GRS, Logothetis NK and Rainer G (August-2007): Reading out the perceptual boundary between human and monkey face categories from the inferior temporal cortex of the macaque monkey, 30th European Conference on Visual Perception, Arezzo, Italy, Perception, 36(ECVP Abstract Supplement) 218-219.
Sigala R, Veit J, Logothetis NK and Rainer G (July-2007): Using the Local Field Potential (LFP) Recorded from the Inferior-Temporal Cortex of a Macaque Monkey to Study Species-Dependent (Monkey/human) Face Processing, 10th Tübinger Wahrnehmungskonferenz (TWK 2007), Tübingen, Germany.
Sigala A. GR, Nielsen K, Logothetis NK and Rainer G (April-2007): Neural encoding of species dependent face-categories in the macaque temporal cortex, 7th Meeting of the German Neuroscience Society, 31st Göttingen Neurobiology Conference, Göttingen, Germany, Neuroforum, 13(Supplement) 767.
Sigala R, Koch A, Nielsen KJ, Logothetis NK and Rainer G (August-2006): Using 3-D human-monkey morphs to explore the boundaries of species dependent face-categories in humans, 29th European Conference on Visual Perception, St. Petersburg, Russia, Perception, 35(ECVP Abstract Supplement) 207-208.
Sigala R, Liebe S, Nielsen K, Logothetis NK and Reiner G (June-2006): Inferior temporal cortex during real world vision, AREADNE 2006: Research in Encoding and Decoding of Neural Ensembles, Santorini, Greece.
Sigala R, Serre T, Poggio T and Giese MA (September-2005): Learning mid-level motion features for the recognition of body movements, Fifth Annual Meeting of the Vision Sciences Society (VSS 2005), Sarasota, FL, USA, Journal of Vision, 5(8) 26.
Sigala RA, Serre T, Poggio T and Casile A (August-2005): Mid-level motion features for the recognition of biological movements, 28th European Conference on Visual Perception, A Coruña, Spain, Perception, 34(ECVP Abstract Supplement) 64.
Giese MA, Sigala R, Wallraven C and Leopold D (August-2004): Physiologically inspired neural model for the prototype-referenced encoding of faces, Fourth Annual Meeting of the Vision Sciences Society (VSS 2004), Sarasota, FL, USA, Journal of Vision, 4(8) 213.
Giese M, Sigala R, Wallraven C and Leopold DA (April-2004): Neurophysiologically inspired adaptive model for the encoding of face spaces, 46. Tagung Experimentell Arbeitender Psychologen (TeaP 2004),, Giessen, Germany, Experimentelle Psychologie, 46 89.
Sigala A. GR, Leopold D, Wallraven C and Giese MA (February-2004): Physiologially Plausible Neuronal Model for Prototype-Referenced Encoding of Faces, 7th Tübingen Perception Conference (TWK 2004), Tübingen, Germany.

Theses (1):

Sigala R: Investigating the neural representation of face categories, Eberhard-Karls-Universität Tübingen, (2011). PhD thesis

Talks (1):

Sigala Alanis GR, Nielsen KJ, Logothetis NK and Rainer G (November-2007) Abstract Talk: Decoding the human/monkey face category boundary from the macaque inferior-temporal (IT) cortex using 3D human/monkey morphed faces, 37th Annual Meeting of the Society for Neuroscience (Neuroscience 2007), San Diego, CA, USA(554.8).

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Last updated: Monday, 22.05.2017