Lyon Neuroscience Research Center
Lyon Neuroscience Research Center - ImpAct Team
Inserm U1028 - CNRS UMR 5292
16 avenue Doyen Lépine
69676 Bron Cedex
Phone: +33 (0)4 72 91 34 14
E-mail : email@example.com
Urgent decision-making between actions
Cortico-basal ganglia network
NEWS (last update: May 13, 2020)
PD symptoms are usually assumed to be low-level motor dysfunctions. However, when John Roche sees a soccer ball, see what happens... #basalganglia #implicitmotivation #energycost #reward
NEW RECOMMENDED PAPER :
The latest paper of the lab is online on bioRxiv ! The study shows an interesting phenomenon: human subjects tend to sacrifice their decisions when the movement they have to produce to report these choices are demanding in terms of accuracy. Data also suggest that there is no one single invigoration signal coordinating decision and action durations, but instead independent, yet interacting, urgency and vigor signals. Please check it out:
Another great collaborative work with Gerard Derosiere, Julie Duque and Paul Cisek now online on bioRxiv ! The study shows that human subjects dynamically adjust their speed-accuracy trade-off by changing their urgency level within the time course of a single decision. Please check it out:
Please check out the latest paper published in the Journal of Neurophysiology describing an ICMS experiment performed in Montreal with Paul Cisek. We show that stimulation of monkey PMd and, to lesser extend, M1 delays the commitment to an action choice:
My paper describing the effects of decision urgency on movement kimematics in humans has been discussed during the journal club of Paul Cisek's group at University of Montreal. Such a satisfactory feeling...
The first paper of the lab is out ! The study shows that decision urgency strongly influences movement speed and duration in humans, irrespective of practice load. Please check it out:
New material available: slides from two courses given at University Claude Bernard Lyon 1 - Check it out !
If you are in Chicago for SfN 2019 and you are interested in decision-making, motor control, cortico-basal ganglia network, neurophysiology and modeling? Come see Paul Cisek presenting our poster on Tuesday afternoon (606.13 - BB19)
Our latest paper is a collaborative work with Gerard Derosiere and Julie Duque suggesting that human M1 cortex is weakly involved in deciding between action choices. Please check it out:
Please check out this interesting study, hot off the press, in which we show that a primary reinforcer, thirst, modulates human subjects kinematics during reaching and grasping a glass.
Patrice Revol, Sarah Collette, Zoe Boulot, Alexandre Foncelle, Chiharu Niki, David Thura, Akila Imai, Sophie Jacquin-Courtois, Michel Cabanac, François Osiurak and Yves Rossetti
Very happy to promote our latest article in The Neuroscientist, a review paper in which we (with Matt Carland and Paul Cisek) argue that an urgency-based mechanism provides a potential link between personality traits (e.g. impulsivity) and some clinical disorders (e.g. Parkinson’s disease).
Very pleased to contribute to the upcoming workshop on Cognitive Control and Performance Monitoring - In memory of Laurence Questienne
I will be giving a talk entitled:
June 14, 2019 - 17.50 pm
Please check the full program
Selection and invigoration of behavior: a role for the cortico-basal ganglia network
Friday, April 05, 2019, 12pm
Inserm - Ecole Normale Supérieure
29, rue d’Ulm, 75005 Paris
My Ph.D. research focused on the FEF, a major component of the cerebral network that is thought to contribute to decision making, as well as to visual and oculomotor processes. We used single-neuron recordings in monkeys to test the hypothesis that FEF neurons integrate signals from the hand to ensure adapted ocular exploration of peripersonal space.
My post-doctoral position in Paul Cisek’s lab provided me with the opportunity to pursue the exploration of complex integrative functions, i.e. decision making, in brain regions such as PMd, M1 and PFC. We investigated the neural correlates of dynamic decision-making in monkeys trained to perform a reach decision task. We showed that premotor and primary motor cortex activity reflects the competition between potential options and signals the commitment to a choice before movement initiation.
As a research associate in Paul Cisek's lab at University of Montreal, we explored the behavior and the neural bases of speed-accuracy trade-off adjustments during dynamic decisions and movement execution. We investigate this question under the affordance competition and the urgency-gating frameworks.
Please click here for a more detailed overview of my career and accomplishments