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@ARTICLE{Fraenz:893932,
      author       = {Fraenz, Christoph and Schlüter, Caroline and Friedrich,
                      Patrick and Jung, Rex E. and Güntürkün, Onur and Genç,
                      Erhan},
      title        = {{I}nterindividual differences in matrix reasoning are
                      linked to functional connectivity between brain regions
                      nominated by {P}arieto-{F}rontal {I}ntegration {T}heory},
      journal      = {Intelligence},
      volume       = {87},
      issn         = {0160-2896},
      address      = {Greenwich, Conn.},
      publisher    = {Ablex},
      reportid     = {FZJ-2021-02942},
      pages        = {101545 -},
      year         = {2021},
      note         = {This work was supported by the following grants: GU
                      227/16-1; GE 2777/2-1; An-2015-0044 and 1U54MH091657},
      abstract     = {The Parieto-Frontal Integration Theory (P-FIT) predicts
                      that human intelligence is closely linked to structural and
                      functional properties of several brain regions mainly
                      located in the parietal and frontal cortices. It also
                      proposes that solving abstract reasoning tasks involves
                      multiple processing stages and thus requires the harmonic
                      interplay of these brain regions. However, empirical studies
                      directly investigating the relationship between intellectual
                      performance and the strength of individual functional
                      connections related to the P-FIT network are scarce. Here we
                      demonstrate, in two independent samples comprising a total
                      of 1489 healthy individuals, that fMRI resting- state
                      connectivity, especially between P-FIT regions, is
                      associated with interindividual differences in matrix
                      reasoning performance. Interestingly, respective
                      associations were only present in the overall samples and
                      the female subsamples but not in the male subsamples,
                      indicating a sex-specific effect. We found five
                      statistically significant connections which replicated
                      across both samples. These were constituted by BAs 8, 10,
                      22, 39, 46, and 47 in the left as well as BAs 44 and 45 in
                      the right hemisphere. Given that many of these brain regions
                      are predominantly involved in language processing, we
                      hypothesized that our results reflect the importance of
                      inner speech for solving matrix reasoning tasks.
                      Complementary to previous research investigating the
                      association between intelligence and functional brain
                      connectivity by means of comprehensive network metrics, our
                      study is the first to identify specific connections from the
                      P-FIT network whose functional connectivity strength at rest
                      can be considered an indicator of intellectual capability.},
      cin          = {INM-7},
      ddc          = {150},
      cid          = {I:(DE-Juel1)INM-7-20090406},
      pnm          = {5251 - Multilevel Brain Organization and Variability
                      (POF4-525)},
      pid          = {G:(DE-HGF)POF4-5251},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000697525700002},
      doi          = {10.1016/j.intell.2021.101545},
      url          = {https://juser.fz-juelich.de/record/893932},
}