Magnetoencephalography (MEG), Attention and Conscience

Awareness Clinical Trial

Official title:

Spatio-temporal Dynamic of the Relationship Between Spatial Attention and Visual Awareness

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01592175
• Other study ID #: C11-49
• Secondary ID: 2011-A01554-37
• Status: Completed
• Start date: March 8, 2012
• Est. completion date: July 2, 2013

Study information

• Verified date: August 2021
• Source: Institut National de la Santé Et de la Recherche Médicale, France
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical 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 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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 32
• Est. completion date: July 2, 2013
• Est. primary completion date: July 2013
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 40 Years

Eligibility

Inclusion Criteria:

• 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

Exclusion Criteria:

• history of neurological or psychiatic disease

• medication

• sensory disorders

Related Conditions & MeSH terms

• Awareness
• Change in Sustained Attention
• Reaction Time

Locations

Country	Name	City	State
France	CRICM	Paris

Sponsors (1)

Lead Sponsor	Collaborator
Institut National de la Santé Et de la Recherche Médicale, France

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	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.	Three years