Introduction

Follie a deux is a rare syndrome characterized by the transference of delusions from a primary subject to a secondary one.

This rare condition, and frequently forgotten in psychiatry pratice, is more frequent in feedlots, particularly in situations alike we face nowadays because of the pandemic.

Objectives

To describe a clinical case and to discuss and highlight some clinical aspects of this entity.

Methods

Present a clinical case report and respective non systematic literature review

Results

This clinical vignete describes a case of shared delusion between a mother and a son. The son suffers from an intelectual disability and shared with his mother a persecutory and prejudice delusion.

Both live in the same house and because of the pandemic they spend all the time together.

This situation was probably the main factor influencing the course of the symptoms.

Conclusions

It is highlighted the importance of a social isolation and close contact between the pair mother/son, more important in context of a global pandemic, viewed as an obstacle to promote the separation of both.

Introduction

Obsessive-compulsive disorder (OCD) is associated to a wide range of symptomatic expression and treatment response variability [1]. Sensory perception has been identified as an emerging factor in this process [2]. Sensory vulnerability and atypical sensory experience were identified as risk factors for the development of OCD [3] and a sensory subtype of the disease was proposed in which there is a positive correlation with early onset sensory symptoms, male gender and family background [4]. Adding to the atypical sensory profile, obsessions are frequently experienced as partially perceptual.

Objectives

Our main goals are to characterize the sensory perception in OCD patients; assess the prevalence and intensity of the sensory properties of the obsessive thoughts and explore the how sensory perception, obsessive thoughts and obsessive dimensions/clusters are interrelated.

Methods

Patients with OCD diagnosis, aged 18 to 65 years and no comorbid mental disorder (except depression) will be recruited. The study battery will include participant form with demographical and clinical features, assessment of depressive and anxiety symptoms (HAM-A and HAM-D) evaluation of clinical outcome measures and obsessive dimensions/clusters (Yale-Brown Obsessive-Compulsive Scale (Y-BOQS) and Obsessive Beliefs Questionnaire-44 (OBQ-44)), assessment of sensory perception and sensory properties of obsessive thoughts (Sensory Perception Quotient (SPQ 21) and Sensory Properties of Obsessive Thoughts Questionnaire (SPOQ)).

Results

The results will help us understand the interaction between perceptual and cognitive processes in OCD.

Conclusions

Better definition of OCD psychopathology and the establishment of a sensory subtype may indicate the need of specific therapeutic indications or a different escalation of treatment measures.