Karen A Sigvardt
Overview
Explore the profile of Karen A Sigvardt including associated specialties, affiliations and a list of published articles.
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18
Citations
362
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Recent Articles
11.
Higginson C, Wheelock V, Levine D, King D, Pappas C, Sigvardt K
J Clin Exp Neuropsychol
. 2008 Jul;
30(7):760-5.
PMID: 18608666
Essential tremor (ET) is increasingly thought to involve a heterogeneous group of patients, with some also exhibiting symptoms of Parkinson's disease (PD), including cognitive deficits. The goal of this study...
12.
Shook S, Franz E, Higginson C, Wheelock V, Sigvardt K
Neuropsychologia
. 2005 Oct;
43(14):1990-9.
PMID: 16243049
A group of people with Parkinson's disease and a group of matched controls were tested on a task involving a switch between perceptual dimensions. Patients were tested both 'on' and...
13.
Jinks S, Atherley R, Dominguez C, Sigvardt K, Antognini J
Anesthesiology
. 2005 Sep;
103(3):567-75.
PMID: 16129982
Background: Although volatile anesthetics such as isoflurane can depress sensory and motor neurons in the spinal cord, movement occurring during anesthesia can be coordinated, involving multiple limbs as well as...
14.
Higginson C, Wheelock V, Carroll K, Sigvardt K
J Clin Exp Neuropsychol
. 2005 Jun;
27(4):516-28.
PMID: 15962695
Parkinson's disease (PD) has been associated with a pattern of performance on memory tests in which free recall is impaired but recognition and cued recall are intact, indicating problems with...
15.
Hurtado J, Rubchinsky L, Sigvardt K, Wheelock V, Pappas C
J Neurophysiol
. 2004 Oct;
93(3):1569-84.
PMID: 15496492
Both standard spectral analysis and time-dependent phase correlation techniques were applied to 27 pairs of tremor-related single units in the globus pallidus internus (GPi) and EMG of patients with Parkinson's...
16.
Hurtado J, Rubchinsky L, Sigvardt K
J Neurophysiol
. 2004 Mar;
91(4):1883-98.
PMID: 15010498
In many networks of oscillatory neurons, synaptic interactions can promote the entrainment of units into phase-coupled groups. The detection of synchrony in experimental data, especially if the data consist of...
17.
Rubchinsky L, Kopell N, Sigvardt K
Proc Natl Acad Sci U S A
. 2003 Nov;
100(24):14427-32.
PMID: 14612573
The motor symptoms of Parkinson's disease (PD) implicate the basal ganglia (BG) in some aspect of motor control, although the role the BG play in regulation of motor behavior is...
18.
Higginson C, King D, Levine D, Wheelock V, Khamphay N, Sigvardt K
Brain Cogn
. 2003 Aug;
52(3):343-52.
PMID: 12907179
A growing body of evidence suggests that the various cognitive symptoms found in Parkinson's disease (PD) are secondary to executive dysfunction. Studies addressing this possibility for memory impairment specifically have...