Research Topics
| I StepniewskaSummaryAffiliation: Vanderbilt University Country: USA Publications
Research Grants
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Detail Information
Publications
Organization of the posterior parietal cortex in galagos: II. Ipsilateral cortical connections of physiologically identified zones within anterior sensorimotor regionIwona Stepniewska
Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA
J Comp Neurol 517:783-807. 2009..These differences in connections are consistent with our functional parcellation of PPC based on intracortical long-train microstimulation, and they identify parts of cortical networks that mediate different motor behaviors...
Thalamic connections of the dorsal and ventral premotor areas in New World owl monkeysI Stepniewska
Department of Psychology, Vanderbilt University, Nashville, TN 37203, USA
Neuroscience 147:727-45. 2007..VApc, VLd, and MD project mainly to premotor areas, while VLp projects mainly to M1. Overall, the thalamic connectivity patterns of premotor cortex in New World owl monkeys are similar to those reported for Old World monkeys...- Organization of the posterior parietal cortex in galagos: I. Functional zones identified by microstimulationIwona Stepniewska
Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA
J Comp Neurol 517:765-82. 2009.... 
The thalamic connections of motor, premotor, and prefrontal areas of cortex in a prosimian primate (Otolemur garnetti)P-C Fang
Department of Psychology, Vanderbilt University, 301 David K. Wilson Hall, 111 21st Avenue South, Nashville, TN 37203, USA
Neuroscience 143:987-1020. 2006..The results suggest that galagos share many subdivisions of the motor thalamus and thalamocortical connection patterns with simian primates, while having less clearly differentiated subdivisions of the motor thalamus...- Topographic patterns of v2 cortical connections in a prosimian primate (Galago garnetti)C E Collins
Department of Psychology, Vanderbilt University, 111 21st Avenue South, Nashville, TN 37240, USA
J Comp Neurol 431:155-67. 2001..Architectural features of striate and extrastriate areas in prosimian galagos are similar to simian primates, with notable exceptions such as stripes in V2, which appear to be less differentiated in galagos... - Microstimulation and architectonics of frontoparietal cortex in common marmosets (Callithrix jacchus)Mark J Burish
Neuroscience Graduate Program and Medical Scientist Training Program, Vanderbilt University, Nashville, Tennessee 37240, USA
J Comp Neurol 507:1151-68. 2008..Our results suggest that frontoparietal cortex in marmosets is organized in a similar fashion to that of other New World primates... - Microstimulation reveals specialized subregions for different complex movements in posterior parietal cortex of prosimian galagosIwona Stepniewska
Department of Psychology, Vanderbilt University, Nashville, TN 37203, USA
Proc Natl Acad Sci U S A 102:4878-83. 2005.... - Thalamocortical connections of functional zones in posterior parietal cortex and frontal cortex motor regions in New World monkeysOmar A Gharbawie
Psychology Department, Vanderbilt University, Nashville, TN 37203, USA
Cereb Cortex 20:2391-410. 2010..PPC connections with VL and VP provide links to cerebellar nuclei and the somatosensory system, respectively, that may integrate PPC functions with M1/PM... - Organization of frontoparietal cortex in the tree shrew (Tupaia belangeri). I. Architecture, microelectrode maps, and corticospinal connectionsMichael S Remple
Neuroscience Graduate Program, Vanderbilt University, Nashville, Tennessee 37240, USA
J Comp Neurol 497:133-54. 2006..Evidence for a complex primate-like array of motor fields is lacking in tree shrews, but their motor cortex shares a number of basic features with that of primates, which are not found in more distantly related species, such as rats... - The organization of frontoparietal cortex in the tree shrew (Tupaia belangeri): II. Connectional evidence for a frontal-posterior parietal networkMichael S Remple
Neuroscience Graduate Program, Vanderbilt University, Nashville, Tennessee 37240, USA
J Comp Neurol 501:121-49. 2007..Overall, the frontoparietal connections of tree shrew cortex are most similar to those of prosimian primates and quite different from those of more distant relatives such as rats... - Cortical networks subserving upper limb movements in primatesJ H Kaas
Department of Psychology, Vanderbilt University, Nashville, TN 37240 7817, USA
Eur J Phys Rehabil Med 48:299-306. 2012..Finally, there is considerable plasticity within the networks so that behavioral recoveries can occur after damage to functional zones within a network... - Ipsilateral cortical connections of dorsal and ventral premotor areas in New World owl monkeysIwona Stepniewska
Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA
J Comp Neurol 495:691-708. 2006..Comparisons of PMD and PMV connectivity with the cortex of the lateral sulcus and posterior parietal cortex of owl monkeys, galagos, and macaques help identify areas that could be homologous... - Corpus callosum connections of subdivisions of motor and premotor cortex, and frontal eye field in a prosimian primate, Otolemur garnettiPei Chun Fang
Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA
J Comp Neurol 508:565-78. 2008..The sparse interhemispheric connections of the forelimb sector of M1 suggests that the control of each forelimb is largely from the contralateral M1 in galagos, as in other primates... - Ipsilateral cortical connections of motor, premotor, frontal eye, and posterior parietal fields in a prosimian primate, Otolemur garnettiPei-Chun Fang
Department of Psychology, Vanderbilt University, Nashville, TN 37203, USA
J Comp Neurol 490:305-33. 2005..Thus, posterior parietal cortex links visual and somatosensory areas with motor fields of frontal cortex... - Reappraisal of DL/V4 boundaries based on connectivity patterns of dorsolateral visual cortex in macaquesIwona Stepniewska
Department of Psychology, Vanderbilt University, Nashville, TN 37203, USA
Cereb Cortex 15:809-22. 2005..The results revealed contrasting and transitional connection patterns for four regions of the dorsolateral visual cortex, and they provided evidence for the locations of dorsal and rostroventral borders of the DL/V4 complex... - Surface-view connectivity patterns of area 18 in catsM W Pospichal
Department of Psychology, Vanderbilt University, Nashville, TN 37240, USA
Acta Neurobiol Exp (Wars) 56:657-71. 1996..There was no evidence of double-labeled cells projecting to separate regions in area 18. These results are more consistent with the concept of a single suprasylvian area projecting to area 18 cortex than several... - Somatosensory input to the ventrolateral thalamic region in the macaque monkey: potential substrate for parkinsonian tremorIwona Stepniewska
Department of Psychology, Vanderbilt University, Nashville, Tennessee 37203, USA
J Comp Neurol 455:378-95. 2003..Thus, the overlapping spinothalamic and cerebellar inputs may provide a substrate for the altered activity of motor thalamic neurons in such patients...
Research Grants
- Parieto-Frontal Circuits Underlying Motor BehaviorIwona Stepniewska; Fiscal Year: 2007..As complex motor behaviors are similar in humans and non-human primates and their motor regions perform similar functions, results will help to understand human brain functions and impairments. ..