fMRI of Flight of Ideas in Bipolar Disorder

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

79 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-08-31

Study Completion Date

2018-09-30

Brief Summary

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Bipolar disorder is a mental disease characterized by mood dysregulation and arises from manic, depressive or mixed episodes. The observations of the patient's speech and language behaviour due to flight of ideas or loss of goal probably result from an underlying disturbance in semantic networks dealing with semantic associations. The aim of our study will be to have a better comprehension of thought disorders in bipolar disorder by cognitive exploration of semantic processing.

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Detailed Description

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Bipolar disorder is a mental disease characterized by mood dysregulation and arises from manic, depressive or mixed episodes. During these episodes, formal thought disorders are observed, associated to emotional perturbation, behaviour troubles and some psychotic symptoms. During mania, the type of thought disorders observed are derailment, flight of ideas, with an increase in the amount of spontaneous speech and loss of goal. These observations of the patient's speech and language behaviour probably result from an underlying disturbance in semantic networks dealing with semantic associations. These networks have been studied extensively in schizophrenia but remain unknown in bipolar disorder. In this context, the aim of our study will be to have a better comprehension of formal thought disorders in bipolar disorder by cognitive exploration of semantic activation and inhibition.

Conditions

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Bipolar Disorder

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

OTHER

Blinding Strategy

NONE

Study Groups

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Bipolar Disorder patients

Group Type EXPERIMENTAL

Functional Magnetic Resonance Imaging

Intervention Type OTHER

Healthy Controls

Group Type EXPERIMENTAL

Functional Magnetic Resonance Imaging

Intervention Type OTHER

Interventions

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Functional Magnetic Resonance Imaging

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

BD patients :

* Men or women, right-handed
* diagnosis of type 1 bipolar disorder, according to the DSM-IV criteria
* aged from 18 to 65 years-old
* Native French speaker
* Affiliated to the social security

Healthy Controls (HC):

* Men or women, right-handed
* aged from 18 to 65 years-old
* Native French speaker
* Affiliated to the social security

Exclusion Criteria

BD patients :

* recent alcohol and/or drug abuse or dependence
* significant general medical illness, including neurological disorders or head trauma
* sensorial impairment (visual and/or hearing)
* Contraindication to the use of MRI

HC:

* first-degree-relative history of bipolar disorder, schizophrenia or schizoaffective disorder according to DSM-IV
* recent alcohol and/or drug abuse or dependence
* significant general medical illness, including neurological disorders or head trauma
* sensorial impairment (visual and/or hearing)
* Contraindication to the use of MRI

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes