Functional Magnetic Resonance Imaging Study on the Role of Awareness in Visual Perception in Healthy Adult Subjects.

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

62 participants

Study Classification

OBSERVATIONAL

Study Start Date

2017-11-06

Study Completion Date

2019-05-04

Brief Summary

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The objective of the study concerns the investigation of the role of awareness in visual perception, highlighting the brain systems involved during non-processing Aware of stimuli belonging to different semantic categories. Specifically, the theoretical perspective of reference is that of the so-called "grounded cognition", according to which the representation of the concepts of semantic knowledge is conveyed by information sensorimotor and affective, introspective and social states. The main objective is therefore to evaluate whether the meaning of the stimulus can be extracted in the absence of awareness, investigating the neural response in the brain regions known to be involved in the conscious processing of stimuli belonging to the semantic categories in question.

To this end, two different experimental paradigms were implemented. A first paradigm aimed at investigating the unconscious representation of semantic knowledge in the context of language, therefore using visual stimuli in lexical mode (words). A second paradigm aimed at investigating the same phenomena in the field of visual perception of objects in space, using stimuli in iconic mode (images).

Detailed Description

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Conditions

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Magnetic Resonance

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* aged between 20 and 65;
* Italian mother tongue.

Exclusion Criteria

* clinical evidence of significant psychiatric or systemic neurological pathologies.

Minimum Eligible Age

20 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Responsible Party

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Chiti Arturo

Professor in Diagnostic Imaging and Radiotherapy Faculty of Medicine and Surgery, Vita-Salute San Raffaele University Director, Department of Nuclear Medicine, IRCCS Ospedale San Raffaele

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Irccs San Raffaele

Milan, , Italy

Site Status

Countries

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Italy

Other Identifiers

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VISCON-01

Identifier Type: -

Identifier Source: org_study_id