Dr. Tomás Ossandón V.


Profesor Asociado


(+56)95504 3257



Formación Pregrado:

2000-2004: Biología, Universidad de Chile

Formación Postgrado:

2006 – 2007: Master in Neuroscience, Université Claude Bernard Lyon 1, Francia

2007 – 2010: PhD, Neurosciences and Cognition Doctoral School, Université Claude Bernard Lyon 1, Francia.

2011-2012: postdoctorado, Lyon Neuroscience Research Center, INSERM-CNRS, Lyon, Francia.

2012-2013: postdoctorado, Laboratorio de Neurociencia, Dpto. de Psiquiatría, PUC, Chile.

Líneas de Interés:
Neurociencia cognitiva.

Bases Biológicas de Trastornos Neuropsiquiátricos

Actividades Docentes Asistenciales:

2013 – a la fecha : Profesor Colaborador. Curso Neurofisiología, Carrera de Medicina, 2º año. , P. Universidad Católica

2013 – a la fecha : Profesor Colaborador. Curso Introducción a la Neurociencia Cognitiva. Doctorado en Neurociencias. , P. Universidad Católica

2014 – a la fecha : director de 3 tesis doctorales, Doctorado en Neurociencias, P. Universidad Católica

2016 a la fecha: Director curso Neurociencia Cognitiva, Doctorado en Nuerociencias

2014 a la fecha: Director de 5 tesis doctorales, 2 tesis de Magister

2016 a la fecha: Co director curso Bases Biológicas de la Psiquiatría. Beca de Psiquiatría

2015-2018: Director curso Introducción a la Nuerociencia Cognitiva, College UC

2015-2019: Director Proyecto Anillo ACT1414, 

2018-2021: Director Proyecto Fondecyt Regular 1180932


1.Functional selectivity in the human occipitotemporal cortex during natural vision: evidence from combined intracranial EEG and eye-tracking Carlos M. Hamamé, Juan R. Vidal, Marcela Perrone-Bertolotti, Tomas Ossandón, Karim Jerbi, Philippe Kahane,P, Olivier Bertrand, Jean-Philippe Lachaux. NeuroImage, 2014 Jul 15;95:276-86

2. Irrelevant stimulus processing in ADHD: catecholamine dynamics and attentional networks. Francisco Aboitiz, Tomás Ossandón, Francisco Zamorano, Bárbara Palma and Ximena Carrasco. Front. Psychol., 26 March 2014. doi: 10.3389/fpsyg.2014.00183

3. Temporal Constraints of Behavioral Inhibition: Relevance of Inter-stimulus Interval in a Go-Nogo Task.Zamorano F, Billeke P, Hurtado JM, López V, Carrasco X, Ossandón T, Aboitiz F. PLoS One. 2014 Jan 29;9(1):e87232

4. Turning visual shapes into sounds: Early stages of reading acquisition revealed in the ventral occipitotemporal cortex. Perrone-Bertolotti M, Vidal JR, de Palma L, Hamamé CM, Ossandon T, Kahane P, Minotti L, Bertrand O, Lachaux JP. Neuroimage. 2014 Apr 15;90:298-307.

5. How silent is silent reading? Intracerebral evidence for top-down activation of temporal voice areas during reading. Perrone-Bertolotti M, Kujala J, Vidal JR, Hamame CM, Ossandon T, Bertrand O, Minotti L, Kahane P, Jerbi K, and Lachaux JP. J Neurosci. 2012 Dec 5;32(49):17554-17562.

6. Efficient ‘Pop-Out’ Visual Search Elicits Sustained Broadband Gamma Activity in the Dorsal Attention Network. Ossandon T, Vidal JR, Cuimas C, Jerbi K, Hamamé C, Dalal SS, Bertrand O, Minotti L Kahane P, Lachaux JP. J Neurosci. 2012 Mar 7;32(10):3414-3421.

7. Long-distance amplitude correlations in the high gamma-band reveal segregation and integration within the reading network. Vidal JR, Freyermuth S, Jerbi K, Hamamé C, Ossandon T, Bertrand O, Minotti L, Kahane P, Berthoz A, Lachaux JP. J Neurosci. 201232(19): 6421-6434.

8. Reading the mind’s eye: online detection of visuo-spatial working memory and visual imagery in the inferior temporal lobe. Hamamé CM, Vidal JR, Ossandón T, Jerbi K, Dalal SS, Minotti L, Bertrand O, Kahane P, Lachaux JP. Neuroimage. 2012 Jan 2;59(1):872-9

9. Transient suppression of broadband gamma power in the default-mode network is correlated with task complexity and subject performance. Ossandón T, Jerbi K, Vidal JR, Bayle DJ, Henaff MA, Jung J, Minotti L, Bertrand O, Kahane P, Lachaux JP. 2011. J Neurosci.

10. Spanning the rich spectrum of the human brain: Slow waves to gamma and beyond. Dalal SS, Vidal JR, Hamamé CH, Ossandon T, Bertrand O, Lachaux JP and Jerbi K. Brain Structure and Function. ; 2011. 216(2):77-84.

11. Intracerebral gamma modulations reveal interaction between emotional processing and action outcome evaluation in the human orbitofrontal cortex. Jung J, Bayle D, Jerbi K, Vidal JR, Hénaff MA, Ossandon T, Bertrand O, Mauguière F, Lachaux JP. Int J Psychophysiol. 2011 Jan;79(1):64-72.

12. Inferring hand movement kinematics from MEG, EEG and intracranial EEG: From brain-machine interfaces to motor rehabilitation. K Jerbi, JR Vidal, J Mattout, E Maby, F Lecaignard, T Ossandon, CM Hamamé, SS Dalal, R Bouet, J-P Lachaux, RM Leahy, S Baillet, L Garnero, C Delpuech, O Bertrand. 2011 IRBM

13. Category-specific visual responses: an intracranial study comparing gamma, beta, alpha and ERP response selectivity. Juan R Vidal, Tomás Ossandón, Karim Jerbi, Sarang S Dalal, Lorella Minotti, Philippe Ryvlin, Philippe Kahane, Jean-Philippe Lachaux. Front. Hum. Neurosci. 4:195. 2010.

14. Exploring the electrophysiological correlates of the default-mode network with intracerebral EEG. Jerbi K, Vidal JR, Ossandon T, Dalal SS, Jung J, Hoffmann D, Minotti L, Bertrand O, Kahane P and Lachaux JP (2010) Front. Syst. Neurosci. 4:27.

15. Brain Responses to Success and Failure: Direct Recordings from Human Cerebral Cortex. Jung J, Jerbi K, Ossandon T et al. Hum Brain Mapp. 2010 Jan 29.

16. Intracortical Recordings During Attentional Tasks. Lachaux JP ans Ossandon T. From Attention to Goal-Directed Behavior, F. Aboitiz and D. Cosmelli (eds.). Springer. 2009.

17. Task-Related Gamma-Band Dynamics From an Intracerebral Perspective: Review and Implications for Surface EEG and MEG. Jerbi K, Ossandon T et al. Human Brain Mapp. 2009

18. Role of Posterior Parietal Gamma Activity in Planning Prosaccades and Antisaccades. Jerbi K, Hamame C, Ossandon T, Dalal SS. Journal of Neuroscience. 2008; 28(51).

19. Oscillatory bursts in the optic tectum of birds represent re-entrant signals from the nucleus isthmi pars parvocellularis. Marin G, Mpodozis J, Sentis E, Ossandon T, Letelier JC. Journal of Neuroscience. 2005; 25(30).

20. Undergraduate teaching of evolution in Chile: more than natural selection. Ahumada P, Astorga G, Bul-Hereñu K et al. Revista Chilena de Historia Natural 78 (1). 2005.

20. Imaging social and environmental factors as modulators of brain dysfunction: time to focus on developing, non-Western societies
NA Crossley, LM Alliende, T Ossandon, CP Castañeda, et al. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging. 2018

21. Default. Design and Neuroscience: Interactive Work on Brain Activity at Rest
M Garretón, T Ossandón, K Hyland. Diseña, 286-299. 2018

22. Brain state-dependent recruitment of high-frequency oscillations in the human hippocampus
P Billeke*, T Ossandon*, M Stockle, M Perrone-Bertolotti, P Kahane, et al. Cortex 94, 87-99. 2017

23. Pupil size tracks attentional performance in attention-deficit/hyperactivity disorder
G Wainstein, D Rojas-Líbano, NA Crossley, X Carrasco, F Aboitiz, T Ossandon*. Scientific reports 7 (1), 8228