18-02-20 Anzellotti, 2018

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Anzellotti, Stefano, Coutanche, Marc N., 2018

T1  - Beyond Functional Connectivity: Investigating Networks of Multivariate Representations
AU  - Anzellotti, Stefano
AU  - Coutanche, Marc N.
JF  - Trends in Cognitive Sciences
UR  - http://dx.doi.org/10.1016/j.tics.2017.12.002

Contents

  • 1. Incorporation Multivariate Information into Our Understanding of Brain Networks
  • 2. From Univariate to Multivariate Signal
    • 2.1. Multivoxel Pattern Analysis
  • 3. Moving beyound Univariate Approaches to Connectivity
  • 4. Modeling Regions' Multivariate Responses
    • 4.1. Informational Connectivity
    • 4.2. Multivariate
    • 4.3. Multivariate
  • 5. Modeling Interactiona
    • 5.1. Informational
    • 5.2. Structural
    • 5.3. Multivariate Pattern
    • 5.4. Nonlinear
  • 6. From Studying
  • 7. Concluding

1 Incorporation Multivariate Information into Our Understanding of Brain Networks

¶01
¶02

? what is the relationship between teh information encoded in one brain reginon and the information encoded in another

Functional Connectivity -> Multivariate analysis

outline:

  1. advances / how this information is neglected
  2. recent tech
  3. significance of the change of perspective

2 From Univariate to Multivariate Signal

¶03

univariate diff can reflect a wide variety of neural computations

2.1 Multivoxel Pattern Analysis

¶04

MVPA : ...

¶05

3 Moving beyond Univariate Approaches to Connectivity

¶06

traditional FC NOT measure fluctuations in info that is represented in multivox pattern

fig1

![fig1]

¶07

2 approaches: 1. Informational connectivity 2. MVPA

they examine the relationship between patterns of multiple brain regions, such as using the patterns from one region to predict patterns in another region

¶08

diff multivariate connectivity techs vary in: - how describe multivariate signal - classifier - points in multidim - model regional interaction - correlation - linear regression - nonlinear model

4 Modeling Regions' Multivariate Responses

4.1 Informational Connectivity

¶09

Informational connectivity :

ref.24

4.2. Multivariate Pattern Dependence