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
1.
Reekes T, Higginson C, Sigvardt K, King D, Levine D, Wheelock V, et al.
J Int Neuropsychol Soc
. 2023 Mar;
29(9):813-820.
PMID: 36971238
Objectives: This study aims to address a gap in the data on cognitive sex differences in persons living with Parkinson disease (PD). There is some evidence that cognitive dysfunction is...
2.
Disbrow E, Glassy N, Dressler E, Russo K, Franz E, Turner R, et al.
PLoS One
. 2022 Mar;
17(3):e0257711.
PMID: 35245294
Response activation and inhibition are functions fundamental to executive control that are disrupted in Parkinson disease (PD). We used magnetoencephalography to examine event related changes in oscillatory power amplitude, peak...
3.
Ventura M, Barnes D, Ross J, Lanni K, Sigvardt K, Disbrow E
Contemp Clin Trials
. 2016 Oct;
51:50-55.
PMID: 27765693
Parkinson's disease (PD) is a progressive neurodegenerative disease associated with deficits in motor, cognitive, and emotion/quality of life (QOL) domains, yet most pharmacologic and behavioral interventions focus only on motor...
4.
Koster D, Higginson C, MacDougall E, Wheelock V, Sigvardt K
Appl Neuropsychol Adult
. 2014 Dec;
22(4):287-92.
PMID: 25495957
Little is known about the subjective cognitive complaints of individuals with Parkinson disease (PD). Such complaints have become a topic of interest recently as they play a role in the...
5.
Lanni K, Ross J, Higginson C, Dressler E, Sigvardt K, Zhang L, et al.
J Clin Exp Neuropsychol
. 2014 Mar;
36(4):342-55.
PMID: 24611823
Executive dysfunction is common in early stage Parkinson's disease (PD). We evaluated the relationship between self- and informant-report measurement of real-world executive functions as well as performance-based neuropsychological measures in...
6.
Disbrow E, Sigvardt K, Franz E, Turner R, Russo K, Hinkley L, et al.
J Parkinsons Dis
. 2013 Aug;
3(2):181-92.
PMID: 23938347
Background: Parkinson's disease (PD), traditionally considered a movement disorder, has been shown to affect executive function such as the ability to adapt behavior in response to new environmental situations. Objective:...
7.
Higginson C, Lanni K, Sigvardt K, Disbrow E
J Clin Exp Neuropsychol
. 2013 May;
35(5):530-9.
PMID: 23663116
Performance on Part B of the Trail Making Test (TMT) contributes to the prediction of ability to complete instrumental activities of daily living (IADLs) in Parkinson's disease (PD). Although this...
8.
Ventura M, Baynes K, Sigvardt K, Unruh A, Acklin S, Kirsch H, et al.
Neuropsychologia
. 2012 May;
50(8):1936-45.
PMID: 22564479
While Parkinson's disease (PD) has traditionally been described as a movement disorder, there is growing evidence of cognitive and social deficits associated with the disease. However, few studies have looked...
9.
Higginson C, Wheelock V, Levine D, Pappas C, Sigvardt K
Appl Neuropsychol
. 2011 Aug;
18(3):210-5.
PMID: 21846220
Evidence suggests that the Hooper Visual Organization Test (HVOT) has naming and executive components that vary in size depending on neurological diagnosis. The current study used a sample of individuals...
10.
Higginson C, Wheelock V, Levine D, King D, Pappas C, Sigvardt K
J Clin Exp Neuropsychol
. 2008 Jul;
31(1):65-72.
PMID: 18608676
Despite the clinical importance of the question, a number of methodological issues have limited firm conclusions regarding the cognitive safety of deep brain stimulation (DBS) of the subthalamic nucleus (STN)...