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NeuroImage v.162, 2017년, pp.362 - 372   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Sensory-biased attention networks in human lateral frontal cortex revealed by intrinsic functional connectivity

Tobyne, Sean M. (Graduate Program for Neuroscience, Boston University, Boston, MA 02215, USA ) ; Osher, David E. (Department of Psychological and Brain Sciences, Boston University, Boston, MA 02215, USA ) ; Michalka, Samantha W. (Olin College of Engineering, Needham, MA 02492, USA ) ; Somers, David C. (Department of Psychological and Brain Sciences, Boston University, Boston, MA 02215, USA ) ;
  • 초록  

    Abstract Human frontal cortex is commonly described as being insensitive to sensory modality, however several recent studies cast doubt on this view. Our laboratory previously reported two visual-biased attention regions interleaved with two auditory-biased attention regions, bilaterally, within lateral frontal cortex. These regions selectively formed functional networks with posterior visual-biased and auditory-biased attention regions. Here, we conducted a series of functional connectivity analyses to validate and expand this analysis to 469 subjects from the Human Connectome Project (HCP). Functional connectivity analyses replicated the original findings and revealed a novel hemispheric connectivity bias. We also subdivided lateral frontal cortex into 21 thin-slice ROIs and observed bilateral patterns of spatially alternating visual-biased and auditory-biased attention network connectivity. Finally, we performed a correlation difference analysis that revealed five additional bilateral lateral frontal regions differentially connected to either the visual-biased or auditory-biased attention networks. These findings leverage the HCP dataset to demonstrate that sensory-biased attention networks may have widespread influence in lateral frontal cortical organization. Highlights Sensory-biased attention networks extend into human lateral frontal cortex (LFC). Small N dataset used to mine Human Connectome Project dataset (N = 469). RS-functional connectivity confirms 4 sensory-biased LFC regions bilaterally. 5 new putative sensory-biased attention regions observed bilaterally in LFC. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Attention networks .   Auditory attention .   Connectomics .   Human Connectome Project .   Resting state functional connectivity .   Visual attention.  

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