Photo_sohir_siteURECA.png    Sohir .M Rahmouni

Doctorante - PhD candidate in Experimental Analysis of Behavior 

Psychologist specialised in Applied Behavior Analysis

Laboratory SCALab, UMR CNRS 9193, team Action Vision and Learning

 

Research interest 

Supervisor: Pr. Laurent Madelain

My research aims to demonstrate that saccades are operant behavior. For that purpose, I used saccadic adaptation, which is a form of motor learning that reliably changes the amplitude or direction of saccades. For example, if a saccade of a particular direction and size consistently fails to reach the intended target, the saccade amplitudes are adjusted. This adjustment, called saccadic adaptation, is experimentally studied by surreptitiously shifting the target while the eye moves, thus creating an apparent error at saccade end, which the system corrects by adjusting the saccade parameters. 

My first study revealed the high inter-subject variability of saccadic adaptation phenomenon (N=100). Then, contrastingly to the dominant view that saccade adaptation is only a simple motor recalibration process, we showed in another study that conventional saccade adaptation involves operant learning mechanisms. By using the ability to perform a visual discrimination task as reinforcement consequence, we obtained a modification of saccade amplitudes. Moreover, evidence for the more recent study showed that differential control on saccade amplitudes by manipulating discriminative stimuli such as target color and/or shape is possible if the stimulus is made relevant for the saccadic system. 

My thesis work supports the idea that saccades are operant behavior, since, by manipulating the nature of the reinforcement consequences at saccade issue and the antecedents stimuli before the saccade, we controlled saccades amplitudes.

Keywords saccadic amplitude, adaptation, contextual/discriminative control, operant, behavior analysis

Publications et communications

Rahmouni, S. &Madelain,L. (Submitted). Reproducibility and individual variability of saccadic adaptation. Vision Research.

 

Rahmouni, Montagnini & Madelain (2018, Poster). What is the nature of the reinforcement consequence that controls our eye movements? Applied Behavior Analysis International conference. May 2018, San Diego (USA).

Rahmouni, Jozefowiez & Madelain (2017, talk). Eye movement and discriminative control : Beyond Biological constraints. Applied Behavior Analysis International conference. Paris (France) 

Rahmouni, Montagnini & Madelain (2017, poster). Saccadic gain modulation by manipulating a visual discrimination task. European Conference Vision Perception. Berlin (Germany).

Rahmouni, Montagnini & Madelain (2017, poster).Saccadic gain controlled by a visual discrimnative task. Vision Science Society, Florida (USA).

Rahmouni, Montagnini & Madelain(2017, poster). Modification in saccadic amplitude using a discriminative task as a reinforcer. Society of Quantitative Analysis Behavior, Colorado (USA).

Rahmouni, Jozefowiez & Madelain (2016, poster). Fragility of discriminative control in oculomotor learning. Society for the quantitative analysis of behavior, Chicago (USA), 25-27 mai 2016.

Rahmouni, Jozefowiez & Madelain (2016, talk).Target color and shape can control contextual saccadic adaptation.Vision Science Society, 13-18th May 2016, St. Pete Beach, USA.

Madelain, Jozefowiez & Rahmouni (2015, poster).Differential saccadic adaptation controlled by target shape and/or color. Vision Science Society, Florida (USA),15 to 20 may 2015.

Rahmouni & Madelain.(2015, poster). Inter-individual variability in saccadic adaptation. Vision Science Society, Florida (USA),15 to 20 may 2015.

Rahmouni, Josefowiez & Madelain (2015, poster). How does a stimulus take discriminative control over saccadic adaptation. Society for the quantitative analysis of behavior, San Antonio (USA), 21-23 may 2015.

Rahmouni, Jozefowiez & Madelain (2015, talk). Adaptation saccadique différentielle contrôlée par la couleur des cibles, Société Française de Psychologie, Strasbourg, 2 sept 2015

Rahmouni, Jozefowiez & Madelain (2015, talk). Contextual differential saccadic adaptation controlled by the target color and/or shape. GDR-Vision, Grenoble (France).

 

Teaching (in French or English)

2017/2018 :
  • Applied Behavior Analysis and Organizational Behavior Management (2nd year MSs Psychology for Master Psychology Behavior and Learning, 12h lecture)
  • Motor control and Behavioral Variability (2nd year MSs Psychology for master STAPS, 7h lecture)
  • Eye traking technology (2nd year MSs Psychology for europeen master PPNSA, 4h lecture)
  • Experimental and differential psychology: Pavlovian and Operant conditionning (3rd year BSs Psychology, 24h)
  • Experimental analysis of Behavior (2nd year BSs Psychology, 18h including 6h of lecture)
  • Scientific methodology (1st year BSs Psychology, 24h)
2016/2017 :
  • Eye traking technology (2nd year MSs Psychology for europeen master PPNSA, 4h lecture)
  • Experimental and differential psychology: Pavlovian and Operant conditionning (3rd year BSs Psychology, 24h)
  • Experimental behavior analysis (2nd year BSs Psychology, 18h including 6h of lecture)
2015/2016 :
  • Experimental and differential psychology: Pavlovian and Operant conditionning (3rd year BSs Psychology, 24h)
  • Experimental behavior analysis (2nd year BSs Psychology, 18h including 6h of lecture)
2014/2015 :
  • Experimental and differential psychology : Pavlovian and Operant conditionning (3st year BSs Psychology, 24h)
  • Experimental behavior analysis (2nd year BSs Psychology, 18h including 6h of lecture)
  • Descriptive statistics (1st year BSs Psychology, 4h )

Before 2014:

  • University Degree (DU) in Applied Behavior Analysis (Univ. of Lille, France): Theory and Practice in ABA (35h of lecture)
  •  Applied Behavior Analysis (Univ. of Manouba, Tunisia): Theory and Practice in ABA (3rd year BSs Psychology, 27h of lecture)

 

Scientific and Academic Responsibilities

  • 2018: Invited speaker for the workshop "Fundraising" (Atelier "recherche de financement") at Doctoral school of Human Science and Society at Lille University, March 22, 2018.
  • 2015-Present: Co-supervisor of two 3rd-year students for their Bachelor (either in EAB and ABA) and two master students in psychology for their Master thesis either in EAB.
  • 2015-Present: Co-supervisor of 3 students (Bachelor and Master) in psychology for research internships.
  • 2014-Present: Member of the Association for Behavior Analysis International (ABAI).
  • 2014-2017: Member of the Vision Sciences Society (VSS).
  • 2016: Invited speaker for the Ph.D student association on "Challenge Doc: How to collaborate with Compagnies as a researcher in Psychology" at Doctoral school of Human Science and Society at Lille University, November 23, 2016.
  • 2016-2017: Representative of doctoral students and post-doc at SCALab, University of Lille.
  • 2016-2017: Representative of doctoral students and post-doc at the users' council of the Doctoral School, University of Lille.
  • 2016: Co-organizer the conference "Brain Mechanism of Motor learning" with Pr. Jerome Sanes (Brown Univ. MRI Research Facility) at the University of Lille, March 10, 2016.
  • 2015-2017: Member of the organization committee of the 9th international conference "Association for Behavior Analysis Internation" in Paris, November 13-14, 2017.
  • 2009: Member of the organization committee of the 1st international conference "Behavior Analysis & Developmental Disorders" in Villeneuve d'Ascq, November 10-11, 2009.

Fundings and Awards

  • 2018:  Senior Student Presenter Grant from Society for the Advancement of Behavior Analysis (SABA) 
  • 2018:  500 euros-Grant for International travel mobility from the Doctoral Schol of Lille University (SHS)
  • 2017:  500 euros-Grant for International travel mobility from the Doctoral Schol of Lille University (SHS)
  • 2016:  1700 euros-Grant from the International Action Departement (DAI) for Internship mobility under Pr. Martin Paré supervision at Queen’s University (Canada), Departments of Biomedical & Molecular Sciences and Psychology, Centre for Neuroscience Studies.
  • 2016:  500 euros-Grant for International travel mobility from the Doctoral Schol of Lille University (SHS)
  • 2015:  500 euros -Grant for International travel mobility from the Doctoral Schol of Lille University (SHS)
  • 2014-2017: PhD grant from local government (Région Nord Pas de calais) and grant ANR-13-APPR-008 (Agence Nationale pour la Recherche)

 

Contact:

Sohir .M Rahmouni
Laboratoire SCALab
Université Charles-de-Gaulle Lille III 
Domaine universitaire du Pont de Bois 
BP 149 ,59653 Villeneuve d'Ascq Cedex 
France 
https://www.researchgate.net/profile/Sohir_Rahmouni

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