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Stable modality-specific activity flows as reflected by the neuroenergetic approach to the FMRI weighted maps.

Strelnikov K, Barone P - PLoS ONE (2012)

Bottom Line: The sources, from which activity spreads in the brain during face processing, were detected in the occipital cortex.For auditory word processing, the sources of activity flows were detected bilaterally in the middle superior temporal regions, they were also detected in the left posterior superior temporal cortex.Thus, neuroenergetic assumptions may give a novel perspective for the analysis of neuroimaging data.

View Article: PubMed Central - PubMed

Affiliation: Hopital Purpan, Toulouse, France. kuzma@cerco.ups-tlse.fr

ABSTRACT
This article uses the ideas of neuroenergetic and neural field theories to detect stimulation-driven energy flows in the brain during face and auditory word processing. In this analysis, energy flows are thought to create the stable gradients of the fMRI weighted summary images. The sources, from which activity spreads in the brain during face processing, were detected in the occipital cortex. The following direction of energy flows in the frontal cortex was described: the right inferior frontal = >the left inferior frontal = >the triangular part of the left inferior frontal cortex = >the left operculum. In the left operculum, a localized circuit was described. For auditory word processing, the sources of activity flows were detected bilaterally in the middle superior temporal regions, they were also detected in the left posterior superior temporal cortex. Thus, neuroenergetic assumptions may give a novel perspective for the analysis of neuroimaging data.

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Related in: MedlinePlus

The left-right and top-down projections of the gradients, the intensity of projections coded by colours.The following direction of energy flows in the frontal cortex is detected: the right inferior frontal = >the left inferior frontal = >the triangular part of the left inferior frontal cortex = >the left operculum. The whole range of t-values is used for illustration purposes.
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pone-0033462-g004: The left-right and top-down projections of the gradients, the intensity of projections coded by colours.The following direction of energy flows in the frontal cortex is detected: the right inferior frontal = >the left inferior frontal = >the triangular part of the left inferior frontal cortex = >the left operculum. The whole range of t-values is used for illustration purposes.

Mentions: In the previous considerations of the gradients, we suggested the following direction of energy flows in the frontal cortex: “right inferior frontal – left inferior frontal – left medial frontal cortex.” (Figure 4). As the projection of the gradient in the triangular part of the left frontal cortex is to the left (“X axis, negative projections”), evidently, the flow goes next to the left operculum, where it enters the more localized circuit of processing. This direction of energy flows may clarify the long-standing debate between the holistic and analytical views on face processing (see [26] for the discussion); it suggests that the holistic processing in the right hemisphere is followed by the analytical processing in the left hemisphere.


Stable modality-specific activity flows as reflected by the neuroenergetic approach to the FMRI weighted maps.

Strelnikov K, Barone P - PLoS ONE (2012)

The left-right and top-down projections of the gradients, the intensity of projections coded by colours.The following direction of energy flows in the frontal cortex is detected: the right inferior frontal = >the left inferior frontal = >the triangular part of the left inferior frontal cortex = >the left operculum. The whole range of t-values is used for illustration purposes.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3303838&req=5

pone-0033462-g004: The left-right and top-down projections of the gradients, the intensity of projections coded by colours.The following direction of energy flows in the frontal cortex is detected: the right inferior frontal = >the left inferior frontal = >the triangular part of the left inferior frontal cortex = >the left operculum. The whole range of t-values is used for illustration purposes.
Mentions: In the previous considerations of the gradients, we suggested the following direction of energy flows in the frontal cortex: “right inferior frontal – left inferior frontal – left medial frontal cortex.” (Figure 4). As the projection of the gradient in the triangular part of the left frontal cortex is to the left (“X axis, negative projections”), evidently, the flow goes next to the left operculum, where it enters the more localized circuit of processing. This direction of energy flows may clarify the long-standing debate between the holistic and analytical views on face processing (see [26] for the discussion); it suggests that the holistic processing in the right hemisphere is followed by the analytical processing in the left hemisphere.

Bottom Line: The sources, from which activity spreads in the brain during face processing, were detected in the occipital cortex.For auditory word processing, the sources of activity flows were detected bilaterally in the middle superior temporal regions, they were also detected in the left posterior superior temporal cortex.Thus, neuroenergetic assumptions may give a novel perspective for the analysis of neuroimaging data.

View Article: PubMed Central - PubMed

Affiliation: Hopital Purpan, Toulouse, France. kuzma@cerco.ups-tlse.fr

ABSTRACT
This article uses the ideas of neuroenergetic and neural field theories to detect stimulation-driven energy flows in the brain during face and auditory word processing. In this analysis, energy flows are thought to create the stable gradients of the fMRI weighted summary images. The sources, from which activity spreads in the brain during face processing, were detected in the occipital cortex. The following direction of energy flows in the frontal cortex was described: the right inferior frontal = >the left inferior frontal = >the triangular part of the left inferior frontal cortex = >the left operculum. In the left operculum, a localized circuit was described. For auditory word processing, the sources of activity flows were detected bilaterally in the middle superior temporal regions, they were also detected in the left posterior superior temporal cortex. Thus, neuroenergetic assumptions may give a novel perspective for the analysis of neuroimaging data.

Show MeSH
Related in: MedlinePlus