Measuring the Sense of Agency: A French Adaptation and Validation of the Sense of Agency Scale (F-SoAS).

Sense of Agency (SoA) is the subject of growing attention. It corresponds to the capacity to claim authorship over an action, associate specific consequences with a specific action, and it has been claimed to be a key point in the development of consciousness. It can be measured using the Sense of Agency Scale (SoAS), originally proposed by Tapal et al. (2017), who distinguished it into two-factor: Sense of Positive Agency (SoPA) and Sense of Negative Agency (SoNA). This study reports on the first adaptation of the SoAS into another language, French. For this French version of the Sense of Agency Scale (F-SoAS), we analyzed responses from a sample of 517 native French-speakers. Our results indicate that the scale has good psychometric properties. Factor analysis confirms the same two-factor model as Tapal et al. (2017). However, some items were removed due to insufficient loadings with factors, leading to a short version of the scale (7-item). Furthermore, we observed gender differences that are consistent with findings in the literature. Specifically, women report higher SoNA scores and lower SoPA scores than men. We conclude by discussing possible uses and future directions for the scale.

[The specialist-referred patients represent 42% of the activity of an academic memory clinic]. / Le recours représente 42 % de l'activité d'une consultation mémoire neurologique d'un centre mémoire de ressources et de recherche.

OBJECTIVES: Evaluate demographic and aetiological characteristics of patients referred by specialist doctors (neurologists, geriatricians and psychiatrists) to an Academic Memory Clinic in Lyon, for the year 2008. These specialist-referred patients (SRP) constitute a specific mission of the French Academic Memory Clinics. METHODS: The outpatients consecutively referred in 2008 to our memory clinic by any persons (patients, families, general practitioners, specialist doctors) were all evaluated using clinical, neuropsychological and imaging information. We examined the distribution of patients diagnosis and differences in gender, education, and cognitive severity (MMSE). For each patient, diagnoses used clinical criteria at the first visit, and ranged from normal subjects to cognitive impaired patients with or without dementia. RESULTS: Among 384 patients, 160 (41.7%; 68 men and 92 women) were referred by specialist doctors. These 160 SRP were younger (P<0.0001) but did not differ from other patients on gender (P=0.55) nor Mini Mental State Examination (P=0.15). SRP were more often demented than the non-referred patients (respectively, 64.4% vs 39.7%; P=0.0001), and the demented SRP had less often Alzheimer's disease (AD) (30.1% vs 65.6%; P=0,0001). Dementia was present in 64.4% of the 160 SRP: among the 160, AD was the most frequent cause (19.4%), followed by Lewy body dementia (11.3%), neurological diseases (12.5% - multiple sclerosis, vascular cognitive impairment, epilepsy) and Mild Cognitive Impairment (10%). Normal subjects were present in 8.1% of the SRP. DISCUSSION: As compared to non-SRP, SRP are younger, more demented (64,4%) and more prone to have non-AD dementia (69,9%). However, AD represented the most frequent diagnosis (19.4% of SRP). CONCLUSION: SRP are an important part of the activity of an Academic Memory Clinic in Lyon. As compared to GPs, young and demented patients are more likely to be sent in a specialized referral center by specialist doctors.