Karen A. Sigvardt - Publications

Affiliations: 
University of California, Davis, Davis, CA 

49 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2015 Koster DP, Higginson CI, MacDougall EE, Wheelock VL, Sigvardt KA. Subjective Cognitive Complaints in Parkinson Disease Without Dementia: A Preliminary Study. Applied Neuropsychology. Adult. 22: 287-92. PMID 25495957 DOI: 10.1080/23279095.2014.925902  1
2014 Disbrow EA, Carmichael O, He J, Lanni KE, Dressler EM, Zhang L, Malhado-Chang N, Sigvardt KA. Resting state functional connectivity is associated with cognitive dysfunction in non-demented people with Parkinson's disease. Journal of Parkinson's Disease. 4: 453-65. PMID 24662193 DOI: 10.3233/JPD-130341  1
2014 Lanni KE, Ross JM, Higginson CI, Dressler EM, Sigvardt KA, Zhang L, Malhado-Chang N, Disbrow EA. Perceived and performance-based executive dysfunction in Parkinson's disease. Journal of Clinical and Experimental Neuropsychology. 36: 342-55. PMID 24611823 DOI: 10.1080/13803395.2014.892059  1
2013 Disbrow EA, Sigvardt KA, Franz EA, Turner RS, Russo KA, Hinkley LB, Herron TJ, Ventura MI, Zhang L, Malhado-Chang N. Movement activation and inhibition in Parkinson's disease: a functional imaging study. Journal of Parkinson's Disease. 3: 181-92. PMID 23938347 DOI: 10.3233/JPD-130181  1
2013 Higginson CI, Lanni K, Sigvardt KA, Disbrow EA. The contribution of trail making to the prediction of performance-based instrumental activities of daily living in Parkinson's disease without dementia. Journal of Clinical and Experimental Neuropsychology. 35: 530-9. PMID 23663116 DOI: 10.1080/13803395.2013.798397  1
2012 Ventura MI, Baynes K, Sigvardt KA, Unruh AM, Acklin SS, Kirsch HE, Disbrow EA. Hemispheric asymmetries and prosodic emotion recognition deficits in Parkinson's disease. Neuropsychologia. 50: 1936-45. PMID 22564479 DOI: 10.1016/j.neuropsychologia.2012.04.018  1
2012 Disbrow EA, Russo KA, Higginson CI, Yund EW, Ventura MI, Zhang L, Malhado-Chang N, Woods DL, Sigvardt KA. Efficacy of tailored computer-based neurorehabilitation for improvement of movement initiation in Parkinson's disease. Brain Research. 1452: 151-64. PMID 22459048 DOI: 10.1016/j.brainres.2012.02.073  1
2011 Higginson CI, Wheelock VL, Levine D, Pappas CT, Sigvardt KA. Predictors of HVOT performance in Parkinson's disease. Applied Neuropsychology. 18: 210-5. PMID 21846220 DOI: 10.1080/09084282.2011.595447  1
2009 Higginson CI, Wheelock VL, Levine D, King DS, Pappas CT, Sigvardt KA. The clinical significance of neuropsychological changes following bilateral subthalamic nucleus deep brain stimulation for Parkinson's disease. Journal of Clinical and Experimental Neuropsychology. 31: 65-72. PMID 18608676 DOI: 10.1080/13803390801982734  1
2008 Higginson CI, Wheelock VL, Levine D, King DS, Pappas CT, Sigvardt KA. Cognitive deficits in essential tremor consistent with frontosubcortical dysfunction. Journal of Clinical and Experimental Neuropsychology. 30: 760-5. PMID 18608666 DOI: 10.1080/13803390701754738  1
2005 Shook SK, Franz EA, Higginson CI, Wheelock VL, Sigvardt KA. Dopamine dependency of cognitive switching and response repetition effects in Parkinson's patients. Neuropsychologia. 43: 1990-9. PMID 16243049 DOI: 10.1016/j.neuropsychologia.2005.03.024  1
2005 Jinks SL, Atherley RJ, Dominguez CL, Sigvardt KA, Antognini JF. Isoflurane disrupts central pattern generator activity and coordination in the lamprey isolated spinal cord. Anesthesiology. 103: 567-75. PMID 16129982 DOI: 10.1097/00000542-200509000-00020  1
2005 Higginson CI, Wheelock VL, Carroll KE, Sigvardt KA. Recognition memory in Parkinson's disease with and without dementia: evidence inconsistent with the retrieval deficit hypothesis. Journal of Clinical and Experimental Neuropsychology. 27: 516-28. PMID 15962695 DOI: 10.1080/13803390490515469  1
2005 Hurtado JM, Rubchinsky LL, Sigvardt KA, Wheelock VL, Pappas CT. Temporal evolution of oscillations and synchrony in GPi/muscle pairs in Parkinson's disease. Journal of Neurophysiology. 93: 1569-84. PMID 15496492 DOI: 10.1152/jn.00829.2004  1
2004 Hurtado JM, Rubchinsky LL, Sigvardt KA. Statistical method for detection of phase-locking episodes in neural oscillations. Journal of Neurophysiology. 91: 1883-98. PMID 15010498 DOI: 10.1152/jn.00853.2003  1
2003 Rubchinsky LL, Kopell N, Sigvardt KA. Modeling facilitation and inhibition of competing motor programs in basal ganglia subthalamic nucleus-pallidal circuits. Proceedings of the National Academy of Sciences of the United States of America. 100: 14427-32. PMID 14612573 DOI: 10.1073/pnas.2036283100  1
2003 Higginson CI, King DS, Levine D, Wheelock VL, Khamphay NO, Sigvardt KA. The relationship between executive function and verbal memory in Parkinson's disease. Brain and Cognition. 52: 343-52. PMID 12907179 DOI: 10.1016/S0278-2626(03)00180-5  1
2000 Hurtado JM, Lachaux JP, Beckley DJ, Gray CM, Sigvardt KA. Inter- and intralimb oscillator coupling in parkinsonian tremor. Movement Disorders : Official Journal of the Movement Disorder Society. 15: 683-91. PMID 10928579 DOI: 10.1002/1531-8257(200007)15:4<683::AID-MDS1013>3.0.CO;2-#  1
2000 Miller WL, Sigvardt KA. Extent and role of multisegmental coupling in the Lamprey spinal locomotor pattern generator. Journal of Neurophysiology. 83: 465-76. PMID 10634888  1
1999 Hurtado JM, Gray CM, Tamas LB, Sigvardt KA. Dynamics of tremor-related oscillations in the human globus pallidus: a single case study. Proceedings of the National Academy of Sciences of the United States of America. 96: 1674-9. PMID 9990083 DOI: 10.1073/pnas.96.4.1674  1
1998 Sigvardt KA, Miller WL. Analysis and modeling of the locomotor central pattern generator as a network of coupled oscillators. Annals of the New York Academy of Sciences. 860: 250-65. PMID 9928317 DOI: 10.1111/j.1749-6632.1998.tb09054.x  1
1998 Miller WL, Sigvardt KA. Spectral analysis of oscillatory neural circuits. Journal of Neuroscience Methods. 80: 113-28. PMID 9667384 DOI: 10.1016/S0165-0270(97)00185-4  1
1996 Sigvardt KA, Williams TL. Effects of local oscillator frequency on intersegmental coordination in the lamprey locomotor CPG: theory and experiment. Journal of Neurophysiology. 76: 4094-103. PMID 8985903  1
1995 Williams TL, Bowtell G, Carling JC, Sigvardt KA, Curtin NA. Interactions between muscle activation, body curvature and the water in the swimming lamprey. Symposia of the Society For Experimental Biology. 49: 49-59. PMID 8571235  1
1994 Williams TL, Sigvardt KA. Intersegmental phase lags in the lamprey spinal cord: experimental confirmation of the existence of a boundary region. Journal of Computational Neuroscience. 1: 61-7. PMID 8792225 DOI: 10.1007/BF00962718  1
1993 Sigvardt KA. Intersegmental coordination in the lamprey central pattern generator for locomotion Seminars in Neuroscience. 5: 3-15. DOI: 10.1016/S1044-5765(05)80020-X  1
1992 Cohen AH, Ermentrout GB, Kiemel T, Kopell N, Sigvardt KA, Williams TL. Modelling of intersegmental coordination in the lamprey central pattern generator for locomotion. Trends in Neurosciences. 15: 434-8. PMID 1281350 DOI: 10.1016/0166-2236(92)90006-T  1
1992 Sigvardt KA, Williams TL. Models of central pattern generators as oscillators: the lamprey locomotor CPG Seminars in Neuroscience. 4: 37-46. DOI: 10.1016/1044-5765(92)90032-W  1
1990 Alford S, Sigvardt KA, Williams TL. GABAergic control of rhythmic activity in the presence of strychnine in the lamprey spinal cord. Brain Research. 506: 303-6. PMID 2302569 DOI: 10.1016/0006-8993(90)91267-K  1
1990 Williams TL, Sigvardt KA, Kopell N, Ermentrout GB, Remler MP. Forcing of coupled nonlinear oscillators: studies of intersegmental coordination in the lamprey locomotor central pattern generator. Journal of Neurophysiology. 64: 862-71. PMID 2230930  1
1990 Alford S, Williams TL, Sigvardt KA. Effects of bicuculline and strychnine on synaptic inputs to edge cells during fictive locomotion. Brain Research. 509: 137-40. PMID 2155043 DOI: 10.1016/0006-8993(90)90320-B  1
1989 Remler MP, Marcussen WH, Sigvardt K. Systemic carbachol used in radiation-controlled focal brain pharmacology can decrease rat running Life Sciences. 45: 151-156. PMID 2747423 DOI: 10.1016/0024-3205(89)90289-0  1
1989 Alford S, Sigvardt KA. Excitatory neurotransmission activates voltage-dependent properties in neurons in spinal motor system of lamprey. Journal of Neurophysiology. 62: 334-41. PMID 2549207  1
1989 Sigvardt KA. Spinal mechanisms in the control of lamprey swimming Integrative and Comparative Biology. 29: 19-35. DOI: 10.1093/icb/29.1.19  1
1988 McClellan AD, Sigvardt KA. Features of entrainment of spinal pattern generators for locomotor activity in the lamprey spinal cord. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 8: 133-45. PMID 2828561  1
1986 Remler MP, Sigvardt K, Marcussen WH. Pharmacological response of systemically derived focal epileptic lesions Epilepsia. 27: 671-677. PMID 3096707  1
1986 Sigvardt KA, Rothman BS, Brown RO, Mayeri E. The bag cells of Aplysia as a multitransmitter system: identification of alpha bag cell peptide as a second neurotransmitter. The Journal of Neuroscience : the Official Journal of the Society For Neuroscience. 6: 803-13. PMID 2870142  1
1985 Rothman BS, Sigvardt KA, Hawke DH, Brown RO, Shively JE, Mayeri E. Identification and primary structural analysis of peptide II, an end-product of precursor processing in cells R3-R14 of Aplysia. Peptides. 6: 1113-8. PMID 3834413 DOI: 10.1016/0196-9781(85)90436-X  1
1985 Sigvardt KA, Grillner S, Wallén P, Van Dongen PA. Activation of NMDA receptors elicits fictive locomotion and bistable membrane properties in the lamprey spinal cord. Brain Research. 336: 390-5. PMID 2988706 DOI: 10.1016/0006-8993(85)90676-6  1
1983 Grillner S, Wallén P, McClellan A, Sigvardt K, Williams T, Feldman J. The neural generation of locomotion in the lamprey: an incomplete account. Symposia of the Society For Experimental Biology. 37: 285-303. PMID 6679116  1
1983 Grillner S, McClellan A, Sigvardt K, Wallén P. On the spinal generation of locomotion, with particular reference to a simple vertebrate: the lamprey. Birth Defects Original Article Series. 19: 347-56. PMID 6135460  1
1982 Grillner S, McClellan A, Sigvardt K. Mechanosensitive neurons in the spinal cord of the lamprey. Brain Research. 235: 169-73. PMID 7188321 DOI: 10.1016/0006-8993(82)90208-6  1
1982 Sigvardt KA, Mulloney B. Properties of synapses made by IVN command-interneurones in the stomatogastric ganglion of the spiny lobster Panulirus interruptus. The Journal of Experimental Biology. 97: 153-68. PMID 7086337  1
1982 Sigvardt KA, Mulloney B. Sensory alteration of motor patterns in the stomatogastric nervous system of the spiny lobster Panulirus interruptus. The Journal of Experimental Biology. 97: 137-52. PMID 7086336  1
1982 Sigvardt KA, Hagiwara G, Wine JJ. Mechanosensory integration in the crayfish abdominal nervous system: Structural and physiological differences between interneurons with single and multiple spike initiating sites Journal of Comparative Physiology □ A. 148: 143-157. DOI: 10.1007/BF00619122  1
1982 Grillner S, McCellan A, Sigvardt K. On the neural generation of 'fictive locomotion' in a lower vertebrate nervous system, in vitro Fernstrom Foundation Series. 273-295.  1
1981 Grillner S, McClellan A, Sigvardt K, Wallén P, Wilén M. Activation of NMDA-receptors elicits "fictive locomotion" in lamprey spinal cord in vitro. Acta Physiologica Scandinavica. 113: 549-51. PMID 6291323 DOI: 10.1111/j.1748-1716.1981.tb06937.x  1
1977 Sigvardt KA. Sensory-motor interactions in antennal reflexes of the American lobster Journal of Comparative Physiology ■ A. 118: 195-214. DOI: 10.1007/BF00611823  1
1973 Wilson MJ, Spaziani E, Sigvardt KA. The scrotum as target organ for testosterone: hormonal control of amino acid distribution. Endocrinology. 93: 743-7. PMID 4721300 DOI: 10.1210/endo-93-3-743  1
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