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alpha band cortical dynamics  (Cortical Dynamics)

 
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    Cortical Dynamics alpha band cortical dynamics
    Flexible oscillatory multiplexing and phase coding allows for processing single and multiple objects in different frames. left : wide attentional spotlight. A natural scene is composed of one or multiple objects. Here, you are watching your cat playing in the garden between trees. Both the trees and the cat are composed of several attributes like stem and crown (trees) or head and paws (cat). We suggest that each of those attributes is reflected on the neuronal level by distinct bursts of gamma band activity. Each burst thereby is tightly linked to a distinct phase of <t>alpha</t> <t>band</t> activity, whereby the respective features are “ranked” along alpha’s phase gradient, where attributes exerting higher neuronal activity (e.g., due to higher levels of saliency, attention, etc.) are processed earlier in the alpha phase, because they are able to overcome the pulsed inhibition earlier in the cycle. This mechanism would be at play for grouping (within an alpha cycle) the different elements of an object, while taking into account the specificity of each attribute. Similarly, each separate object in turn is coded along the theta/delta phase gradient (again depending on the level of excitation). Alternatively, this change of excitability could also be caused by saccadic eye movement itself. right : narrow attentional spotlight. If the focus of attention is more narrow (i.e., “zoomed in” attentional spotlight), we suggest that the frame of reference shifts, such that former attributes can become objects that are in turn composed of smaller attributes, allowing for a higher level of detail. Here, the focus of attention shifted towards the head of the cat, which is threatened by a predatory bird. In general, the same principles of phase coding apply, but now the level of detail has increased (i.e., the cat’s eyes become attributes and the cat’s head the object). Note that dynamic fluctuations are represented as sinusoidal oscillations only for illustrative purposes.
    Alpha Band Cortical Dynamics, supplied by Cortical Dynamics, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 86 stars, based on 1 article reviews
    Price from $9.99 to $1999.99
    alpha band cortical dynamics - by Bioz Stars, 2025-01
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    1) Product Images from "Visual Processing by Hierarchical and Dynamic Multiplexing"

    Article Title: Visual Processing by Hierarchical and Dynamic Multiplexing

    Journal: eNeuro

    doi: 10.1523/ENEURO.0282-24.2024

    Flexible oscillatory multiplexing and phase coding allows for processing single and multiple objects in different frames. left : wide attentional spotlight. A natural scene is composed of one or multiple objects. Here, you are watching your cat playing in the garden between trees. Both the trees and the cat are composed of several attributes like stem and crown (trees) or head and paws (cat). We suggest that each of those attributes is reflected on the neuronal level by distinct bursts of gamma band activity. Each burst thereby is tightly linked to a distinct phase of alpha band activity, whereby the respective features are “ranked” along alpha’s phase gradient, where attributes exerting higher neuronal activity (e.g., due to higher levels of saliency, attention, etc.) are processed earlier in the alpha phase, because they are able to overcome the pulsed inhibition earlier in the cycle. This mechanism would be at play for grouping (within an alpha cycle) the different elements of an object, while taking into account the specificity of each attribute. Similarly, each separate object in turn is coded along the theta/delta phase gradient (again depending on the level of excitation). Alternatively, this change of excitability could also be caused by saccadic eye movement itself. right : narrow attentional spotlight. If the focus of attention is more narrow (i.e., “zoomed in” attentional spotlight), we suggest that the frame of reference shifts, such that former attributes can become objects that are in turn composed of smaller attributes, allowing for a higher level of detail. Here, the focus of attention shifted towards the head of the cat, which is threatened by a predatory bird. In general, the same principles of phase coding apply, but now the level of detail has increased (i.e., the cat’s eyes become attributes and the cat’s head the object). Note that dynamic fluctuations are represented as sinusoidal oscillations only for illustrative purposes.
    Figure Legend Snippet: Flexible oscillatory multiplexing and phase coding allows for processing single and multiple objects in different frames. left : wide attentional spotlight. A natural scene is composed of one or multiple objects. Here, you are watching your cat playing in the garden between trees. Both the trees and the cat are composed of several attributes like stem and crown (trees) or head and paws (cat). We suggest that each of those attributes is reflected on the neuronal level by distinct bursts of gamma band activity. Each burst thereby is tightly linked to a distinct phase of alpha band activity, whereby the respective features are “ranked” along alpha’s phase gradient, where attributes exerting higher neuronal activity (e.g., due to higher levels of saliency, attention, etc.) are processed earlier in the alpha phase, because they are able to overcome the pulsed inhibition earlier in the cycle. This mechanism would be at play for grouping (within an alpha cycle) the different elements of an object, while taking into account the specificity of each attribute. Similarly, each separate object in turn is coded along the theta/delta phase gradient (again depending on the level of excitation). Alternatively, this change of excitability could also be caused by saccadic eye movement itself. right : narrow attentional spotlight. If the focus of attention is more narrow (i.e., “zoomed in” attentional spotlight), we suggest that the frame of reference shifts, such that former attributes can become objects that are in turn composed of smaller attributes, allowing for a higher level of detail. Here, the focus of attention shifted towards the head of the cat, which is threatened by a predatory bird. In general, the same principles of phase coding apply, but now the level of detail has increased (i.e., the cat’s eyes become attributes and the cat’s head the object). Note that dynamic fluctuations are represented as sinusoidal oscillations only for illustrative purposes.

    Techniques Used: Multiplexing, Activity Assay, Inhibition



    Similar Products

    alpha band cortical dynamics  (Cortical Dynamics)
    86
    Cortical Dynamics alpha band cortical dynamics
    Flexible oscillatory multiplexing and phase coding allows for processing single and multiple objects in different frames. left : wide attentional spotlight. A natural scene is composed of one or multiple objects. Here, you are watching your cat playing in the garden between trees. Both the trees and the cat are composed of several attributes like stem and crown (trees) or head and paws (cat). We suggest that each of those attributes is reflected on the neuronal level by distinct bursts of gamma band activity. Each burst thereby is tightly linked to a distinct phase of <t>alpha</t> <t>band</t> activity, whereby the respective features are “ranked” along alpha’s phase gradient, where attributes exerting higher neuronal activity (e.g., due to higher levels of saliency, attention, etc.) are processed earlier in the alpha phase, because they are able to overcome the pulsed inhibition earlier in the cycle. This mechanism would be at play for grouping (within an alpha cycle) the different elements of an object, while taking into account the specificity of each attribute. Similarly, each separate object in turn is coded along the theta/delta phase gradient (again depending on the level of excitation). Alternatively, this change of excitability could also be caused by saccadic eye movement itself. right : narrow attentional spotlight. If the focus of attention is more narrow (i.e., “zoomed in” attentional spotlight), we suggest that the frame of reference shifts, such that former attributes can become objects that are in turn composed of smaller attributes, allowing for a higher level of detail. Here, the focus of attention shifted towards the head of the cat, which is threatened by a predatory bird. In general, the same principles of phase coding apply, but now the level of detail has increased (i.e., the cat’s eyes become attributes and the cat’s head the object). Note that dynamic fluctuations are represented as sinusoidal oscillations only for illustrative purposes.
    Alpha Band Cortical Dynamics, supplied by Cortical Dynamics, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/alpha band cortical dynamics/product/Cortical Dynamics
    Average 86 stars, based on 1 article reviews
    Price from $9.99 to $1999.99
    alpha band cortical dynamics - by Bioz Stars, 2025-01
    86/100 stars
    		  Buy from Supplier

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    Flexible oscillatory multiplexing and phase coding allows for processing single and multiple objects in different frames. left : wide attentional spotlight. A natural scene is composed of one or multiple objects. Here, you are watching your cat playing in the garden between trees. Both the trees and the cat are composed of several attributes like stem and crown (trees) or head and paws (cat). We suggest that each of those attributes is reflected on the neuronal level by distinct bursts of gamma band activity. Each burst thereby is tightly linked to a distinct phase of alpha band activity, whereby the respective features are “ranked” along alpha’s phase gradient, where attributes exerting higher neuronal activity (e.g., due to higher levels of saliency, attention, etc.) are processed earlier in the alpha phase, because they are able to overcome the pulsed inhibition earlier in the cycle. This mechanism would be at play for grouping (within an alpha cycle) the different elements of an object, while taking into account the specificity of each attribute. Similarly, each separate object in turn is coded along the theta/delta phase gradient (again depending on the level of excitation). Alternatively, this change of excitability could also be caused by saccadic eye movement itself. right : narrow attentional spotlight. If the focus of attention is more narrow (i.e., “zoomed in” attentional spotlight), we suggest that the frame of reference shifts, such that former attributes can become objects that are in turn composed of smaller attributes, allowing for a higher level of detail. Here, the focus of attention shifted towards the head of the cat, which is threatened by a predatory bird. In general, the same principles of phase coding apply, but now the level of detail has increased (i.e., the cat’s eyes become attributes and the cat’s head the object). Note that dynamic fluctuations are represented as sinusoidal oscillations only for illustrative purposes.

    Journal: eNeuro

    Article Title: Visual Processing by Hierarchical and Dynamic Multiplexing

    doi: 10.1523/ENEURO.0282-24.2024

    Figure Lengend Snippet: Flexible oscillatory multiplexing and phase coding allows for processing single and multiple objects in different frames. left : wide attentional spotlight. A natural scene is composed of one or multiple objects. Here, you are watching your cat playing in the garden between trees. Both the trees and the cat are composed of several attributes like stem and crown (trees) or head and paws (cat). We suggest that each of those attributes is reflected on the neuronal level by distinct bursts of gamma band activity. Each burst thereby is tightly linked to a distinct phase of alpha band activity, whereby the respective features are “ranked” along alpha’s phase gradient, where attributes exerting higher neuronal activity (e.g., due to higher levels of saliency, attention, etc.) are processed earlier in the alpha phase, because they are able to overcome the pulsed inhibition earlier in the cycle. This mechanism would be at play for grouping (within an alpha cycle) the different elements of an object, while taking into account the specificity of each attribute. Similarly, each separate object in turn is coded along the theta/delta phase gradient (again depending on the level of excitation). Alternatively, this change of excitability could also be caused by saccadic eye movement itself. right : narrow attentional spotlight. If the focus of attention is more narrow (i.e., “zoomed in” attentional spotlight), we suggest that the frame of reference shifts, such that former attributes can become objects that are in turn composed of smaller attributes, allowing for a higher level of detail. Here, the focus of attention shifted towards the head of the cat, which is threatened by a predatory bird. In general, the same principles of phase coding apply, but now the level of detail has increased (i.e., the cat’s eyes become attributes and the cat’s head the object). Note that dynamic fluctuations are represented as sinusoidal oscillations only for illustrative purposes.

    Article Snippet: For the presented framework, we would expect alpha band cortical dynamics to act similarly.

    Techniques: Multiplexing, Activity Assay, Inhibition