Study: NCT02020824

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Exposure to anxiogenous environments
Description: The anxiogenous environments are defined by several levels of possible anxiety classified progressively and independently by each patient at the beginning of the study. The exposure is applied during the 8 sessions for each of the arms Exposure to anxiogenous environments (with or without control).

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Exposure to anxiogenous environments
Description: The anxiogenous environments are defined by several levels of possible anxiety classified progressively and independently by each patient at the beginning of the study. The exposure is applied during the 8 sessions for each of the arms Exposure to anxiogenous environments (with or without control).

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Imagery with functional MRI initial
Description: Subjects will be submitted to 1 session of fMRI during their first visit, in order to identify and evaluate the activation of cerebral fields involved during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Imagery with functional MRI initial
Description: Subjects will be submitted to 1 session of fMRI during their first visit, in order to identify and evaluate the activation of cerebral fields involved during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: OTHER
Intervention: Imagery with functional MRI initial
Description: Subjects will be submitted to 1 session of fMRI during their first visit, in order to identify and evaluate the activation of cerebral fields involved during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Imagery with PET-scanner initial
Description: Subjects will be submitted to 1 session of PET-scanner during their first visit, in order to measure the synaptic activity during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Imagery with PET-scanner initial
Description: Subjects will be submitted to 1 session of PET-scanner during their first visit, in order to measure the synaptic activity during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: OTHER
Intervention: Imagery with PET-scanner initial
Description: Subjects will be submitted to 1 session of PET-scanner during their first visit, in order to measure the synaptic activity during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Imagery with functional MRI final
Description: Patients will be submitted to 1 session of fMRI during a follow-up visit, in order to identify and evaluate the activation of cerebral fields involved during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Imagery with functional MRI final
Description: Patients will be submitted to 1 session of fMRI during a follow-up visit, in order to identify and evaluate the activation of cerebral fields involved during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Imagery with PET-scanner final
Description: Patients will be submitted to 1 session of PET-scanner during a follow-up visit, in order to measure the synaptic activity during the exposure to anxiogenous environments.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Imagery with PET-scanner final
Description: Patients will be submitted to 1 session of PET-scanner during a follow-up visit, in order to measure the synaptic activity during the exposure to anxiogenous environments.