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Influence of Emotion in a Test Run Forgetfulness

Not Applicable
Completed
Conditions
Schizophrenia
Healthy Volunteer
Interventions
Procedure: pain words test
Procedure: negative words test
Registration Number
NCT02547259
Lead Sponsor
Centre Hospitalier Universitaire de Saint Etienne
Brief Summary

Currently there is uncertainty on how schizophrenic patients feel pain. Pain has several components including cognitive behavior which allow humans to perceive it as a negative emotion. It is difficult to say precisely what are the differences in cognitive processing between the emotional component of pain and painless another negative emotion (eg fear). However, pain and negative emotion have some neural networks together and there are many common ways between emotional processing (pain or negative) and storing information (limbic system).

Detailed Description

The study is to go 1 time in hospital for memory test. These tests consist in:

* Group 1: words to painful sense will be shown on a screen, one at a time for 5 seconds. Patient or healthy volunteer will need to retain them. Then these same words, mixed with others that patient/healthy volunteer will not learn, will again be displayed on the computer screen one at a time for 5 seconds. Upon the occurrence of a word, patient/healthy volunteer must press the 'L' key if they think they have learned the word or the "D" key on the keyboard if they feel that they have not learned this word.

* Group 2: words to negative sense will be shown on a screen, one at a time for 5 seconds. Patient or healthy volunteer need to retain them. Then these same words, mixed with others that patient/healthy volunteer will not learn, will again be displayed on the computer screen one at a time for 5 seconds. Upon the occurrence of a word, patient/healthy volunteer must press the 'L' key if they think they have learned the word or the "D" key on the keyboard if they feel that they have not learned this word.

15 schizophrenic will be included in group 1 and 15 other schizophrenics in group 2.

15 Healthy volunteer will be included in group 1 and 15 other Healthy volunteer in group 2.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
60
Inclusion Criteria
  • Patients:
  • schizophrenic age 18 years to 55 years
  • Stabilized, clinical and therapeutic point of view, since at least one month.
  • Good knowledge of French
  • Healthy volunteer
  • age 18 years to 55 years
  • Good knowledge of French
  • Matching on age (± 5 years) and level of study patients
Exclusion Criteria
  • Patients
  • History of head trauma, neurological disease with cerebral repercussion or not stabilized or serious physical illness causing pain> 3 months.
  • Recent Amendment of psychotropic therapy (<1 month)
  • Consumption of benzodiazepines long-term (negative effect on memory capacity)
  • Troubles Related to the use of a psychoactive substance, as defined by the DSM IV (recent use, abuse, dependence or withdrawal).
  • Healthy volunteer
  • Consumption of benzodiazepines long-term (negative effect on memory capacity)
  • Troubles Related to the use of a psychoactive substance, as defined by the DSM IV (recent use, abuse, dependence or withdrawal).

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
schizophrenic pain words testpain words testschizophrenic will have memory test with pain words on computer
Healthy volunteer pain words testpain words testHealthy volunteer will have memory test with pain words on computer
schizophrenic negative words testnegative words testschizophrenic will have memory test with negative words on computer
Healthy volunteer negative words testnegative words testHealthy volunteer will have memory test with negative words on computer
Primary Outcome Measures
NameTimeMethod
Retained wordsDay 1

Number of selected words and average time taken to recognize between healthy volunteers and schizophrenics (composite measure)

Secondary Outcome Measures
NameTimeMethod
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