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When people are tested on a previously learned material, they will latter remember it better even when compared to a condition where they can re-study it. This phenomenon is called retrieval practice and is supported by an extensive research literature mostly carried out in normal students. This paradigm begins to be used in cognitive remediation programs in patients suffering from memory difficulties.
The objective of this study is to investigate whether retrieval practice is spared in patients with schizophrenia.
If effective, this method could be used in cognitive remediation programs.
Since episodic memory difficulties are supposed to be secondary to deficits in the initiation/elaboration of efficient encoding and retrieval strategies our hypothesis is that retrieval practice is spared in schizophrenia
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Patients with schizophrenia | Experimental |
| |
| Healthy subjects | Active Comparator |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Retrieval practice effect using word pairs and cued recall tests with feedback | Behavioral | In the first phase (encoding), people study a list of 48 word pairs non semantically associated. Then (initial test), they recall half of word pairs or restudy the other half. In the second phase (final test) which takes place 2 days later, they recall all the 48 the word pairs. |
| Measure | Description | Time Frame |
|---|---|---|
| Number of word pairs properly recalled | - The aim is to investigate the retrieval practice effect using word pairs and cued recall tests with feedback in patients with schizophrenia and healthy controls. In the first phase (encoding), people study a list of 48 word pairs non semantically associated, then half of the pairs are presented in its completed form for two times, and for the other half the two subsequent re-exposure trials are framed as cued recall tests (the first word is presented and the subject has to remember and give orally the second word, and a feedback is given). In the second phase (final test) which takes place 2 days later, all the 48 word pairs are presented as a cued recall test. - We will compare in patients with schizophrenia and healthy controls final performance recall for information studied and recalled ("test" condition) to those for information studied and then re-studied ("re-study" condition). | Final test : 2 days after the first experimental session |
| Measure | Description | Time Frame |
|---|---|---|
| Difference between final performance recall and memory span score | In each group (patients with schizophrenia and healthy controls) : Difference between the final performance recall (see primary outcome measure) in "test" condition and "re-study" condition AND memory span score. | Final test : 2 days after the first experimental session |
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Inclusion Criteria:
Specific inclusion criteria (for patients) :
Exclusion Criteria:
Specific exclusion criteria (for healthy subjects) :
- Diagnostic of schizophrenia of a relative up to the third degree
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Centre Psychothérapique de Nancy | Laxou | 54521 | France | |||
| Service de psychiatrie - Hôpital Civil - CHRU Strasbourg |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 31711448 | Result | Jantzi C, Mengin AC, Serfaty D, Bacon E, Elowe J, Severac F, Meyer N, Berna F, Vidailhet P. Retrieval practice improves memory in patients with schizophrenia: new perspectives for cognitive remediation. BMC Psychiatry. 2019 Nov 11;19(1):355. doi: 10.1186/s12888-019-2341-y. |
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| ID | Term |
|---|---|
| D012559 | Schizophrenia |
| ID | Term |
|---|---|
| D019967 | Schizophrenia Spectrum and Other Psychotic Disorders |
| D001523 | Mental Disorders |
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|
| Strasbourg |
| 67091 Cedex |
| France |