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by Callum Ross last modified Sep 08, 2014 11:35 AM

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I am a postdoctoral scholar at the Department of Organismal Biology and Anatomy of the University of Chicago. I am currently involved in a collaborative project, with Prof. Callum Ross and Prof. Nicho Hatsopoulos, that looks into the neuronal mechanisms underlying control of tongue and jaw movements and plasticity of the orofacial motor and sensory cortices in non-human primates. Previously, I worked with Professor Eilon Vaadia (Department of Medical Neurobiology, IMRIC-Hadassah School of Medicine, The Hebrew University of Jerusalem and ELSC for Brain Sciences) on the motor control and adaptation of arm-reaching movements in both humans and monkeys.  


Research Interests

Nothing happens until something moves, so Albert Einstein once said. And as I watch the graceful leap of a ballerina, the amazing finger coordination of a concert pianist, the great precision in timing and force of a tennis player, I often wonder why we move the way we move? It is the experience of this "mystery" that I have embarked to study the neuronal basis of motor control. And after all these years, I am ever more astonished to realize that these highly coordinated and skilled motions are a consequence of efficient “networking” among populations of neurons in the brain.

My research expertise is in elucidating the cortical correlates of motor control and motor learning. Over many decades, the study of motor control has been approached at different levels, i.e. human psychophysics, neurophysiology, and computational modeling. Although each of these levels has provided unique contributions, the challenge remains to find a unifying element for the proposed notions and theories, observed behavior, and neurophysiology of the motor system. Thus, I am interested in collaborative projects that look into a combination of these aspects.

The general aim of my doctoral work was to explore the nature of neuronal representations of motor outputs and the integration of sensory feedback during adaptation of reaching movements to novel perturbations. The medium I used was human psychophysics and electrophysiology of the motor cortex of behaving non-human primates. 

Building upon my doctoral work that examined short-term adaptation, I have started to investigate long-term reorganization in the sensorimotor cortices during learning of new orofacial motor skills. This is the first massive and simultaneous recording from three areas of the orofacial sensorimotor cortices of non-human primates, thus allowing population analyses to assess the role of the orofacial cortical areas for motor control and memory consolidation. I am also exploring the control of feeding (tongue and jaw movements) in non-human primates to see whether similar neuronal principles govern motor control and plasticity of reaching and feeding movements.


PUBLICATIONS

Peer-reviewed Journal Publications

Arce F, Hatsopoulos NG, Lee JC, Ross CF, Sessle BJ (2014) Modulation dynamics in the orofacial sensorimotor cortex during motor skill acquisition. Journal of Neuroscience 34(17):5985–5997.

Arce F, Ross CF, Lee JC, Sessle BJ, Hatsopoulos NG (2013) Directional information from neuronal ensembles in the primate orofacial sensorimotor cortex. Journal of Neurophysiology 110(6):1357-1369; published ahead of print June 19, 2013, doi:10.1152/jn.00144.2013.

Arce F, Novick I, Mandelblat-Cerf Y, Vaadia E. (2010) Neuronal correlates of memory formation in motor cortex after adaptation to force field. Journal of Neuroscience 30:9189-9198.

Arce F, Novick I, Cerf Y, Israel Z, Ghez C, Vaadia E. (2010) Combined Adaptiveness of Specific Motor-Cortical Ensembles Underlies Learning. Journal of Neuroscience 30:5415-5425.

Arce F, Novick I and Vaadia E. (2010) Discordant tasks and motor adjustments affect interactions between adaptations to altered kinematics and dynamics. Frontiers in Human Neuroscience 3:65. doi:10.3389/neuro. 09.065.2009.

Arce F, Novick I, Shahar M, Link Y, Ghez C, Vaadia E. (2009) Differences in Context and Feedback Result in Different Trajectories and Adaptation Strategies in Reaching. PLoS ONE 4(1): e4214. doi:10.1371/journal.pone. 0004214.

Arce FI, Katz N, Sugarman H. (2004). The scaling of postural adjustments during bimanual load-lifting in traumatic brain-injured adults. Human Movement Science 22:749-768.


Book Chapter

Umphred, D & Arce, F. Motor learning, motor control, and neuroplasticity in Neurorehabilitation for the Physical Therapist Assistant (2014), Second Edition (eds. Umphred D & Lazaro R). New Jersey: SLACK. 


Conference Abstracts (Poster Presentations)

Arce F, Ross CF, Lee JC, Sessle BJ, Hatsopoulos NG. Spike-spike and spike-field coherence reveal mutual intercortical communication in the orofacial sensorimotor cortex. Program No. 631. 2014 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2014. Online.

Arce FI, Hatsopoulos NG, Lee JC, Sessle BJ, Ross CF. Learning-related changes in the orofacial sensorimotor cortex. 2014 Annual Meeting of the Dysphagia Research Society. Nashville, TN.

Arce F, Hatsopoulos NG, Lee JC, Ross CF, Sessle BJ. Spiking activity in the motor and sensory cortices differ during long-term learning. Program No. 565.05. 2013 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2013. Online.

Arce F, Hatsopoulos NG, Brown K, Takahashi K,  Lee JC, Ross CF, Sessle BJ. Dynamics of modulation in orofacial sensorimotor cortex during long-term adaptation to a novel tongue-protrusion task. Program No. 279.26. 2011 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2011. Online.

Arce F, Novick I, Mandelblat-Cerf Y, Vaadia E. Neuronal correlates of memory formation in motor cortex following adaptation to force field. Program No. 494.4. 2010 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2010. Online

Arce F, Novick I, Cerf Y, Israel Z, Ghez C, Vaadia E. Sensory feedback alters the computation of directional signals by the motor cortex. Abstract. Beer-Sheva, Israel: The Fifth Computational Motor Control Workshop, 2009.

Arce F, Novick I, and Vaadia, E. Learning-induced modulation of motor cortical activity during adaptations to force fields with and without visual feedback. Program No. 277.13. 2008 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2008. Online.

Arce F, Novick I, and Vaadia, E. Motor cortical changes during adaptations to force fields with and without visual feedback. Abstract. Eilat: ISFN, 2008.

Arce F, Novick I, Shahar M, Ghez C, and Vaadia, E. Reaching between lines: rectilinear versus curvilinear trajectories during adaptations to force fields and visuomotor rotations. J. S. Pezaris and N. G. Hatsopoulos (eds) Proceedings of AREADNE 2008, Santorini, Greece, 26-29 June 2008.

Arce F, Novick I, and Vaadia, E. Action in motion versus action planning: Neuronal correlates of adaptations to force fields with and without visual feedback in the motor cortex. J. S. Pezaris and N. G. Hatsopoulos (eds) Proceedings of AREADNE 2008, Santorini, Greece, 26-29 June 2008.

Arce F, Novick I, Shahar M, Ghez C, and Vaadia, E. Adaptive strategies differed based on sensory estimates of initial and final reach positions. Program No. 413.14. 2007 Neuroscience Meeting Planner. San Diego, California: Society for Neuroscience, 2007. Online.

 Arce F, Novick I, Shahar M, Ghez C, and Vaadia, E. Modalities of feedback induce differential reaching strategies in adaptations to force field. 2007 Abstract. Eilat: ISFN, 2007.

Arce F, Novick I, and Vaadia, E. Interactions between adaptations to kinematics and dynamics perturbations depend on perturbation direction. Program No. 57.24. 2006 Neuroscience Meeting Planner. Atlanta, Georgia: Society for Neuroscience, 2006. Online.


Conference Abstracts (Oral Presentations)

Arce F, Hatsopoulos NG, Takahashi K, Pesce L, Sessle BJ Ross CF. Directional information in the primate orofacial sensorimotor cortex. Program No. 14.07. 2012 Neuroscience Meeting Planner. New Orleans, LA: Society for Neuroscience, 2012. Online.

Arce F, Ross CF, Lee JC, Sessle BJ, Hatsopoulos NG. Decoding tongue movements using orofacial motor cortical ensembles in behaving macaques. Program No. 19.02. 2011 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2011. Online.

Arce F. The neural basis of motor control: computation of motor output and integration of sensory feedback during adaptation. Conference Talk. Ein Gedi, Israel: The ICNC Annual Retreat, 2010.

Arce F, Novick I, and Vaadia E. Facilitation rather than interference in sequential adaptation to kinematic and dynamic perturbations. 2005 Abstract. Eilat: ISFN, 2005.

 

Curriculum Vitae in brief

2010-present    Postdoctoral Scholar (Dept Organismal Biology and                                  Anatomy, University of Chicago, IL)
2003-2009        PhD in Neurobiology (Hadassah Medical School, The                                Hebrew University of Jerusalem, Israel)
2001-2003        MSc in Neurobiology (Hadassah Medical School, The                                Hebrew University of Jerusalem, Israel)
1999-2001        Predoctoral Research (The Hebrew University of                                        Jerusalem, Israel)
1994-1995        MA in Motor Learning (Columbia University, NY)
1986-1990        BSc in Physical Therapy (University of the Philippines)

 

Contact info

Dr. Fritzie Arce
Department of Organismal Biology and Anatomy
The University of Chicago 
1027 East 57th Street (Rm 206) 
Chicago IL 60637
Work phone: (773) 795-9954
fritziea@uchicago.edu


 

 

 

 

 

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