Subcortical discrimination; binocular rivalry; magnetic resonance

Replies to This Discussion

Permalink Reply by Liviu Iliescu on February 14, 2017 at 10:17am

 

By file

Links and headings to access the articles cited in the publication made by I.L.

it is possible to access the ~ 80% of my publications.

For more than  50 years I studied and described techniques to apply in fine arts Binocular Rivalry with Helmholtz

 Colorful  Fusion with an analytical method of Stereoscopy.

   In 2004 a team of researchers obtained with  magnetic resonance for the first time in science, creating a photograph using a graphical test of retinal rivalry.

   Such observation images graphics tests of this kind induce energy-related processes recordable consciousness.

    It confirms that the direction of my research topics belong to studying the possibility of recording phenomena

consciousness, with an energetic origin.

 

Excerpt from the article:

 

Links and headings to access the articles cited in the publication made by I.L.

 

Links and headings......... to access the articles quoted in my publications relative to the application in fine art

the domains Binocular Rivalry with Color Fusion and Stereoscopy

   This documentation is the result of over 50 years of study

Partial confirmation of my research directions

I present in:

Subcortical discrimination; binocular rivalry; magnetic resonance

 

from which I extract:

Volume 42, Issue 1, 8 April 2004, Pages 163–172

 

Cell

Article

Subcortical Discrimination of Unperceived Objects during Binocular Rivalry

• Brian N Pasley^1, 2, 
• Linda C Mayes¹, 
• Robert T Schultz^, 1, 

 Show more

http://dx.doi.org/10.1016/S0896-6273(04)00155-2

Get rights and content

Under an Elsevier user license

  Open Archive

---

Abstract

Rapid identification of behaviorally relevant objects is important for survival. In humans, the neural computations for visually discriminating complex objects involve inferior temporal cortex (IT). However, less detailed but faster form processing may also occur in a phylogenetically older subcortical visual system that terminates in the amygdala. We used binocular rivalry to present stimuli without conscious awareness, thereby eliminating the IT object representation and isolating subcortical visual input to the amygdala. Functional magnetic resonance imaging revealed significant brain activation in the left amygdala but not in object-selective IT in response to unperceived fearful faces compared to unperceived nonface objects. These findings indicate that, for certain behaviorally relevant stimuli, a high-level cortical representation in IT is not required for object discrimination in the amygdala.

 

Excerpt from  the researchers article

Results

In binocular rivalry, perceptual dominance is promoted by “stimulus strength,” as defined by characteristics such as high luminance and high contrast, transient motion, and complexity (Blake, 2001)…………………………

. This presentation scheme (Figure 1) maintained the perceptual suppression of the target image during the entire trial. In addition to presentations of suppressed chairs and suppressed fearful faces, we also included a third condition in which a moving house was presented to both eyes, in order to compare responses to this nonrivalry condition. These three conditions were indistinguishable to the participant, appearing as a moving house in every case.

 . These three conditions were indistinguishable to the participant, appearing as a moving house in every case.

 

Figure 1. 

Binocular Rivalry Stimulus Presentation Procedure for a Suppressed Face Trial

kk

 

Permalink Reply by Liviu Iliescu on February 22, 2017 at 6:45am

 

This article presenting research results has a content of selective competence in neuroscience.

 However there are aspects of generality that I have been accessible to me.

So :

 

 The researchers used tests Binocular Rivalry (Retinal Rivalry)

 Binocular Rivalry techniques consist noting simultaneously for the left eye shapes different from those for

right eye,   winning successive awareness.

  Researchers have passed a test that has an artistic content. (....fearful  face .....)

 

Appear awareness of different states corresponding to different levels of potential energy.

 

In case of cancellation awareness picture (in succession) it corresponds to a state of minimum energy potential

 because it considers the energy dissipated for getting the photo in the left amygdala.

 

It may produce neurosis rebounds to normal when taking into consideration the universal processes of beings that appear rebounds in failure. recoveries that occur if the stimulus is weak or missing

 

My fine art compositions using binocular rivalry, are far superior in terms of emotional content,

compared to known binocular rivalry tests

 

Excerpts from this article    

Abstract

Rapid identification of behaviorally relevant objects is important for survival. In humans, the neural computations for visually discriminating complex objects involve inferior temporal cortex (IT). However, less detailed but faster form processing may also occur in a phylogenetically older subcortical visual system that terminates in the amygdala. We used binocular rivalry to present stimuli without conscious awareness, thereby eliminating the IT object representation and isolating subcortical visual input to the amygdala. Functional magnetic resonance imaging revealed significant brain activation in the left amygdala but not in object-selective IT in response to unperceived fearful faces compared to unperceived nonface objects. These findings indicate that, for certain behaviorally relevant stimuli, a high-level cortical representation in IT is not required for object discrimination in the amygdala.

 ..................................

Results

In binocular rivalry, perceptual dominance is promoted by “stimulus strength,” as defined by characteristics such as high luminance and high contrast, transient motion, and complexity (Blake, 2001)…………………………

. This presentation scheme (Figure 1) maintained the perceptual suppression of the target image during the entire trial. In addition to presentations of suppressed chairs and suppressed fearful faces, we also included a third condition in which a moving house was presented to both eyes, in order to compare responses to this nonrivalry condition. These three conditions were indistinguishable to the participant, appearing as a moving house in every case.

 . These three conditions were indistinguishable to the participant, appearing as a moving house in every case.......