January 9, 2020 Journal article Open Access

Riccardo Iandolo; Marianna Semprini; Stefano Buccelli; Federico Barban; Mingqi Zhao; Jessica Samogin; Gaia Bonassi; Laura Avanzino; Dante Mantini; Michela Chiappalone

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{
  "DOI": "10.1109/ojemb.2020.2965323", 
  "abstract": "Goal: Functional connectivity (FC) is an important indicator of the brain's state in different conditions, such as rest/task or health/pathology. Here we used high-density electroencephalography coupled to source reconstruction to assess frequency-specific changes of FC during resting state. Specifically, we computed the Small-World Propensity (SWP) index to characterize network small-world architecture across frequencies. Methods: We collected resting state data from healthy participants and built connectivity matrices maintaining the heterogeneity of connection strengths. For a subsample of participants, we also investigated whether the SWP captured FC changes after the execution of a working memory (WM) task. Results: We found that SWP demonstrates a selective increase in the alpha and low beta bands. Moreover, SWP was modulated by a cognitive task and showed increased values in the bands entrained by the WM task. Conclusions: SWP is a valid metric to characterize the frequency-specific behavior of resting state networks. ispartof: IEEE Open Journal of Engineering in Medicine and Biology status: accepted", 
  "author": [
    {
      "family": "Riccardo Iandolo"
    }, 
    {
      "family": "Marianna Semprini"
    }, 
    {
      "family": "Stefano Buccelli"
    }, 
    {
      "family": "Federico Barban"
    }, 
    {
      "family": "Mingqi Zhao"
    }, 
    {
      "family": "Jessica Samogin"
    }, 
    {
      "family": "Gaia Bonassi"
    }, 
    {
      "family": "Laura Avanzino"
    }, 
    {
      "family": "Dante Mantini"
    }, 
    {
      "family": "Michela Chiappalone"
    }
  ], 
  "id": "46656", 
  "issued": {
    "date-parts": [
      [
        2020, 
        1, 
        9
      ]
    ]
  }, 
  "language": "eng", 
  "note": "", 
  "title": "Small-World Propensity Reveals the Frequency Specificity of Resting State Networks", 
  "type": "article-journal"
}