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@ARTICLE{Helmstaedter:3699,
      author       = {Helmstaedter, M. and Sakmann, B. and Feldmeyer, D.},
      title        = {{L}2/3 {I}nterneuron {G}roups {D}efined by {M}ultiparameter
                      {A}nalysis of {A}xonal {P}rojection, {D}endritic {G}eometry,
                      and {E}lectrical {E}xcitability},
      journal      = {Cerebral cortex},
      volume       = {19},
      issn         = {1047-3211},
      address      = {Oxford},
      publisher    = {Oxford Univ. Press},
      reportid     = {PreJuSER-3699},
      pages        = {951 - 962},
      year         = {2009},
      note         = {This work was supported by the Max-Planck Society.},
      abstract     = {For a detailed description of the circuitry of cortical
                      columns at the level of single neurons, it is essential to
                      define the identities of the cell types that constitute
                      these columns. For interneurons (INs), we described 4 "types
                      of axonal projection patterns" in layer 2/3 (L2/3) with
                      reference to the outlines of a cortical column (Helmstaedter
                      et al. 2008a). In addition we quantified the dendritic
                      geometry and electrical excitability of 3 types of the L2/3
                      INs: "local," "lateral," and "translaminar" inhibitors
                      (Helmstaedter et al. 2008b). Here, we used an iterated
                      cluster analysis (iCA) that combines axonal projection
                      patterns with dendritic geometry and electrical excitability
                      parameters to identify "groups" of INs, from a sample of 39
                      cells. The iCA defined 9 groups of INs. We propose a
                      hierarchical scheme for identifying L2/3 INs. First, L2/3
                      INs can be classified as 4 types of axonal projections.
                      Second, L2/3 INs can be subclassified as 9 groups with a
                      high within-group similarity of dendritic, axonal, and
                      electrical parameters. This scheme of identifying L2/3 INs
                      may help to quantitatively describe inhibitory effects on
                      sensory stimulus representations in L2/3 of cortical
                      columns.},
      keywords     = {Action Potentials: physiology / Animals / Axons: physiology
                      / Dendrites: physiology / Excitatory Postsynaptic
                      Potentials: physiology / Interneurons: cytology /
                      Interneurons: physiology / Neural Pathways: cytology /
                      Neural Pathways: physiology / Rats / Rats, Wistar /
                      Somatosensory Cortex: physiology / J (WoSType)},
      cin          = {INM-2 / JARA-BRAIN},
      ddc          = {610},
      cid          = {I:(DE-Juel1)INM-2-20090406 / $I:(DE-82)080010_20140620$},
      pnm          = {Funktion und Dysfunktion des Nervensystems},
      pid          = {G:(DE-Juel1)FUEK409},
      shelfmark    = {Neurosciences},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:18802122},
      UT           = {WOS:000263945100019},
      doi          = {10.1093/cercor/bhn130},
      url          = {https://juser.fz-juelich.de/record/3699},
}