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NCT04344028 · ClinicalTrials.gov registry record · NA
Examining the Effectiveness of Cognitive Training
A NA study, sponsored by University of Wisconsin, Madison.
- Completed
- Registry status
- NA
- Development phase
- 287
- Enrollment target
NCT04344028: Completed NA study, sponsored by University of Wisconsin, Madison.
NCT04344028 is a NA study that has completed, run by University of Wisconsin, Madison. The registered enrollment target is 287 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (80% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04344028, a NA study, has completed, sponsored by University of Wisconsin, Madison.
- COMPLETED
- Registry status
- NA
- Development phase
- 287 participants
- Enrollment target
Study Summary
The present study addresses whether placebo effects can possibly account for previous findings in the field, as well as ascertains whether placebo-based mechanisms can be deliberately harnessed for impact. The design is a 2 (positive expectations/negative expectations) x 2 (true cognitive training intervention x control cognitive training intervention) Randomized Controlled Trial (RCT). Participants will be recruited from site-affiliated participant pools or email lists. Participants will first undergo a pre-test battery where various cognitive abilities are assessed via computerized programs. They will also fill out various surveys about personality traits/internal dispositions that may predict the extent to which they are susceptible to placebo effects. After pre-testing, participants will be randomized to an expectations group (positive/negative) and a training protocol (active/control). Participants are then given their group appropriate expectation script. In the positive expectations group, participants receive training described as having previous research supporting its use as a method to enhance cognitive abilities. In the negative expectations group, participants receive training described as having previous research suggesting that it is unlikely to change cognitive abilities or may even decrease cognitive abilities. The participants will then be given instructions regarding how to do their training task. Participants will be asked to complete 10 sessions of training within 15 days. The active training will be a standard working memory (N-back) training task. The control training will be a trivia/quiz training task. After they have completed 10 sessions, participants will complete a "mid-test" session to undergo a battery of perceptual/cognitive tasks. Participants will be told that the perceptual/cognitive tests are identical to those that they took at pre-test. However, in reality, for participants in the "positive expectations" groups, these will b
Primary Outcome
The n-Back Task is a measure of working memory. The participant is sequentially shown a series of letters and is asked to indicate whether the current letter matches the letter presented "n" items before. The n levels range between 1- and 3-back. Each level of n-back has 17-19 letters, with 5 target letters. The dependent measure is the proportion of correctly identified targets minus the proportion of incorrectly identified non-targets. Scores range from 0-1. Higher scores indicate better perfo
Interventions
- BEHAVIORAL True Cognitive Training Program
- BEHAVIORAL Control Cognitive Training Program
- BEHAVIORAL Positive Expectation Induction
- BEHAVIORAL Negative Expectation Induction
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 287 participants |
| Start Date | 2020-05-11 |
| Est. Completion | 2022-08-09 |
| Phase | NA |
What the finished NCT04344028 record still lists
NCT04344028 is an interventional study that assigns participants to a tested intervention. The registered 287 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (80% lower).
The record links to 0 conditions, and to 4 interventions - of which True Cognitive Training Program is the first listed.
NCT04344028 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04344028 about?
NCT04344028 is a clinical study titled "Examining the Effectiveness of Cognitive Training". The present study addresses whether placebo effects can possibly account for previous findings in the field, as well as ascertains whether placebo-based mechanisms can be deliberately harnessed for impact. The design is a 2 (positive expectations/negative expectations) x 2 (true cognitive training i...
What is the current status of trial NCT04344028?
This trial is currently completed. It is a NA study. The enrollment target is 287 participants. The study started on 2020-05-11. Estimated completion is 2022-08-09.
What interventions are being tested in trial NCT04344028?
The interventions under investigation include: True Cognitive Training Program (BEHAVIORAL), Control Cognitive Training Program (BEHAVIORAL), Positive Expectation Induction (BEHAVIORAL), Negative Expectation Induction (BEHAVIORAL).
Who is sponsoring clinical trial NCT04344028?
This trial is sponsored by University of Wisconsin, Madison, which has 1,039 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04344028's enrollment target sits among peer trials
287 377th of 2000 higher than 1,624 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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