NCT03225027

Study on Communication Comprehension in the Schizophrenic Spectrum

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 59 (actual)
• Sponsor: Hôpital NOVO · Academic / Other
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Accepted

Summary

The purpose of the present study is to evaluate the effect of emotional prosody on the perception of emotional discourse in the schizophrenic spectrum. The investigators hypothesize that participant may use emotional prosody as an emotional cue to understand the emotional content of discourse.

Detailed description

The integration of ortholinguistic and paralinguistic functions in language, particularly of the emotional prosody, is necessary to interact adaptively with others. People in the schizophrenic spectrum have social difficulties. Is emotional prosody comprehension altered in these people? According to Edwards et al. (2002), there is methodological issues concerning the tasks used to answer this question. Investigators built an emotional judgment task more adapted to study the perception of emotional prosody in the schizophrenic spectrum than the classical paradigm designed to evaluate participants with cerebral injury. The investigators have elaborated a material that consists of 140 short sentences (7±2 words) with a simple syntactic structure. The verbal content expressed positive, neutral or negative emotions. These sentences were announced by four professional actors (two female) with an emotional prosody content congruent or inconsistent with the verbal content. Participants will have to evaluate the emotional intensity of the recordings on a five points Likert scale, from strongly negative to strongly positive. Psychotic experiences of all participants will be evaluated too.

Conditions

• Schizophrenia Simple

Interventions

Type	Name	Description
BEHAVIORAL	Emotional judgment task	Participants had to indicate on a computer the emotional intensity of audio recordings.
BEHAVIORAL	Post-experimental questionnaire	Participants will be invited to give us the cognitive strategy used to resolve the emotional judgment task.
BEHAVIORAL	Recognition task	Participants will be invited to indicate which recordings they had heard during the emotional judgment task to verify that they have paid attention to the emotional task.
BEHAVIORAL	Detection task	Participants indicate every time they heard a given sound in order to verify their audition level.
OTHER	CAPE-42	This questionnaire allows evaluating the nature of psychotic experiences.
DIAGNOSTIC_TEST	Trait Emotional Intelligence Questionnaire	To evaluate their emotional intelligence.
DIAGNOSTIC_TEST	Positive And Negative Syndrome Scale	Evaluating the clinical status of patients with schizophrenia.
OTHER	Mini International Neuropsychiatric Interview	Evaluating the exclusion criteria in healthy participants.

Timeline

• Start date: 2016-11-15
• Primary completion: 2019-05-27
• Completion: 2019-05-27
• First posted: 2017-07-21
• Last updated: 2019-07-29

Locations

1 site across 1 country: France