Brain imaging study of social thinking in drug-resistant epilepsy patients
Uses brain MRI scans and social tests in adults with drug-resistant temporal lobe epilepsy.
Plain-language title generated from the registry record
Registry title: Cartography of Social Cognition Network and Their Alterations in Patients With Epilepsy
Key facts
- Where
- Gif-sur-Yvette and Paris, FranceSee the 2 sites
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 65 years old?
Source: NCT05527093, who can take part
Where in France
- NeuroSpin - CEAGif-sur-Yvette, FranceNo longer taking part
- Unité d'épilepsie - GHU Pitié SalpêtrièreParis, FranceTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- Assistance Publique - Hôpitaux de Paris
- Trial code
- NCT05527093
- Record updated
- 21 March 2025
- Original description
Social cognition, which refers to the ability to interpret social information and behave accordingly in a social environment, is crucial in everyday life. But this ability has been shown to be altered in patients with epilepsy, especially in medial temporal lobe epilepsy, which leads to a deterioration in the patient's quality of life. However, the mechanisms of those deficiencies remain largely unknown. The Team objective is to achieve a structural and functional cartography of the social cognition network in 20 healthy subjects and 20 patients with drug-resistant medial temporal lobe epilepsy (before and one year after resective surgery of the epileptogenic focus). Social cognition deficiencies will be assessed using a specifically dedicated neuropsychological assessment validated in French (Batteries de Cognition Sociale BCS). Brain structural analyses will be performed on a 3-Tesla MRI (3T MRI), including an anatomical T1 sequence, a High Angular Resolution Diffusion Imaging (HARDI) to assess the morphology and macrostructural characteristics of long and short white matter tracts involved in social cognition, and quantitative MRI and Hybrid Diffusion Imaging (HYDI) to assess their microstructure. Functional connectivity will be assessed using an ultra-high-field 7-Tesla MRI (7T MRI), with acquisition in resting state and during specific social cognition tasks. Joint analysis of structural and functional connectivity will enable the team to assess the alterations of social cognition networks in patients with epilepsy and their reorganisations after epilepsy surgery.Read full original descriptionShow less
Cartography of Social Cognition Network and Their Alterations in Patients With Epilepsy
Social cognition, which refers to the ability to interpret social information and behave accordingly in a social environment, is crucial in everyday life. But this ability has been shown to be altered in patients with epilepsy, especially in medial temporal lobe epilepsy, which leads to a deterioration in the patient's quality of life. However, the mechanisms of those deficiencies remain largely unknown. The Team objective is to achieve a structural and functional cartography of the social cognition network in 20 healthy subjects and 20 patients with drug-resistant medial temporal lobe epilepsy (before and one year after resective surgery of the epileptogenic focus). Social cognition deficiencies will be assessed using a specifically dedicated neuropsychological assessment validated in French (Batteries de Cognition Sociale BCS). Brain structural analyses will be performed on a 3-Tesla MRI (3T MRI), including an anatomical T1 sequence, a High Angular Resolution Diffusion Imaging (HARDI) to assess the morphology and macrostructural characteristics of long and short white matter tracts involved in social cognition, and quantitative MRI and Hybrid Diffusion Imaging (HYDI) to assess their microstructure. Functional connectivity will be assessed using an ultra-high-field 7-Tesla MRI (7T MRI), with acquisition in resting state and during specific social cognition tasks. Joint analysis of structural and functional connectivity will enable the team to assess the alterations of social cognition networks in patients with epilepsy and their reorganisations after epilepsy surgery.
Inclusion: Age ≥ 18 years old; Good understanding of written and verbal French language; Written consent signed by the subject; Patients with focal temporal lobe epilepsy for at least one year, drug-resistant, due to a hippocampal sclerosis; Undergoing presurgical assessment; Affiliated to a social security system.
Exclusion: Under juridical protection; With claustrophobia or any MRI contra-indication; Pregnancy or lactation; Participation in another research with an exclusion period; Refusal to be notified in the event of anomalies discovered during the performance of an MRI sequence.