Clinical techniques

UMR 1114 - Neuropsychologie Cognitive,Physiophatologie de la Schyzophrénie

After the EEG equipment has been installed, the subject's head is placed on a stand to avoid any neck pain during the task.

Electroencephalography (EEG)

The team routinely records electroencephalography during cognitive tasks. Analysis of the data obtained (evoked potentials, oscillations, i.e. rhythmic electrical brain activity) enables us to study the processing stages that precede and follow the presentation of a stimulus (tactile, visual or auditory) and/or a response (i.e. preparation, prediction, detection, identification, motor programming, monitoring, etc.).

The effects of neuromodulation (in this case TMS) on brain activity can be studied using EEG.

Neuromodulation

Example of a VR environment used within the team.

Virtual reality (VR)

Virtual reality enables researchers in psychology and neuroscience to assess participants' cognitive abilities in a scientific (controlled) way that is also environmentally friendly, i.e. close to real-life conditions. By creating original scenarios, it also makes the test situations more attractive and entertaining, thereby encouraging participant motivation, an important factor when these tests have to be carried out several times, for example during rehabilitation protocols. We are using virtual reality, coupled with EEG and ocular measurements, to gain a better understanding of the cognitive mechanisms linked to the perception of time in healthy volunteers and patients suffering from psychopathological disorders.

Videos on VirtualTimes project:

Motion capture

Patients suffering from schizophrenia have subtle disorders of motor preparation, which have been demonstrated experimentally in the unit. Motion capture techniques can be used to record patients' movement trajectories, whether during walking or for finer movements. Motion capture techniques are used to objectivise patients' motor disorders.

UMR 1114 - Neuropsychologie Cognitive,Physiophatologie de la Schyzophrénie

Example of eye tracking acquisition with EyeLink equipment

Eye tracking