Change in Sustained AttentionNCT01592175
Magnetoencephalography (MEG), Attention and Conscience
An observational study of Change in Sustained Attention and Awareness, run by Institut National de la Santé Et de la Recherche Médicale, France at 1 site in France.
Trial summary
The tight relationship between attention and conscious perception makes them difficult to study in isolation and has led many scientists to closely link these two processes. However, while some authors argue that conscious perception cannot occurs without attention, magnetoencephalography (MEG) and fMRI studies had… Read more about this study
- Who is it for?
- Ages 18 to 40 yearsHealthy volunteers can take part
- Conditions the study is for
- Change in Sustained Attention, Awareness, Reaction Time
- How many people
- 32 participants
- Where
- 1 siteFrance
- Study dates
- 8 Mar 2012to 2 Jul 2013
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 40 years
- All sexes
- Healthy volunteers accepted
- Adult
Study population: Young adults living in Paris or around fulfilling the eligibility criteria
Who may be able to join
- Subjects aged between 18 and 40 who have signed informed consent for participation to the study and are affiliated to a social security regimen
- right-handler, without auditory or visual deficit
Who cannot join
- history of neurological or psychiatic disease
- medication
- sensory disorders
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Spatio-temporal Dynamic of the Relationship Between Spatial Attention and Visual Awareness
The tight relationship between attention and conscious perception makes them difficult to study in isolation and has led many scientists to closely link these two processes. However, while some authors argue that conscious perception cannot occurs without attention, magnetoencephalography (MEG) and fMRI studies had shown that attention and consciousness are two distinct brain processes.
If endogenously triggered attention and consciousness are dissociated, it has been proposed that orienting of exogenous attention is a necessary, though not sufficient, antecedent of conscious perception.
In the present study we used MEG to explore the neural correlates of exogenous attention and consciousness during visual processing.
- Conditions
- Change in Sustained Attention, Awareness, Reaction Time
What is being measured
The primary outcome is the main question the study is designed to answer.
Brain activity during visuo-spatial attention tasks
Magnetoencephalography will be used to measured cerebral evoked potential and oscillatory activity, while subjects will performed a visuo-spatial attention task.
Measured: Three years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 May 2012 (estimated)
- Study start8 Mar 2012
- Primary completionJul 2013
- Study completion2 Jul 2013
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Change in Sustained AttentionStudies of the same condition, open and under way.
- More trials run by Institut National de la Santé Et de la Recherche Médicale, FranceThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 32 participants (actual)
Sponsor and investigators
- Sponsor type
- Other government
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01592175
- Sponsor's protocol ID
- C11-49
- Other IDs
- 2011-A01554-37
- Status last verified
- Aug 2021
- First submitted
- 16 Apr 2012
- Last updated
- 30 Aug 2021
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 30 Aug 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Spatio-temporal Dynamic of the Relationship Between Spatial Attention and Visual Awareness
- ClinicalTrials.gov ID
- NCT01592175
- Acronym / sponsor ID
- C11-49
- Conditions
- Change in Sustained Attention, Awareness, Reaction Time
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 32 participants (actual)
- Lead sponsor
- Institut National de la Santé Et de la Recherche Médicale, FranceOther government
- Study start
- 8 Mar 2012 (actual)
- Primary completion
- Jul 2013 (actual)
- Study completion
- 2 Jul 2013 (actual)
- First posted
- 7 May 2012 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The tight relationship between attention and conscious perception makes them difficult to study in isolation and has led many scientists to closely link these two processes. However, while some authors argue that conscious perception cannot occurs without attention, magnetoencephalography (MEG) and fMRI studies had shown that attention and consciousness are two distinct brain processes.
If endogenously triggered attention and consciousness are dissociated, it has been proposed that orienting of exogenous attention is a necessary, though not sufficient, antecedent of conscious perception.
In the present study we used MEG to explore the neural correlates of exogenous attention and consciousness during visual processing.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 to 40 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Young adults living in Paris or around fulfilling the eligibility criteria
Key inclusion criteria (2 listed)
- Subjects aged between 18 and 40 who have signed informed consent for participation to the study and are affiliated to a social security regimen
- right-handler, without auditory or visual deficit
Key exclusion criteria (3 listed)
- history of neurological or psychiatic disease
- medication
- sensory disorders
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Brain activity during visuo-spatial attention tasks
Time frame: Three years
Magnetoencephalography will be used to measured cerebral evoked potential and oscillatory activity, while subjects will performed a visuo-spatial attention task.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Aug 2021.
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Change in Sustained Attention and Awareness, run by Institut National de la Santé Et de la Recherche Médicale, France at 1 site in France.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 30 Aug 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in France. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Brain activity during visuo-spatial attention tasks (time frame: Three years). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Aug 2021; AzTrials last refreshed its copy on 30 Oct 2026.