J R Duffy
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Explore the profile of J R Duffy including associated specialties, affiliations and a list of published articles.
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Articles
37
Citations
653
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Recent Articles
1.
Buciuc M, Duffy J, Machulda M, Spychalla A, Gunter J, Jack Jr C, et al.
Eur J Neurol
. 2020 Oct;
28(2):670-675.
PMID: 33068458
Background And Purpose: Cerebral microbleeds (MB) and superficial siderosis (SS) are frequent neuroimaging findings in patients with logopenic progressive aphasia (LPA), often with frontal lobe predilection. Cerebral amyloid angiopathy (CAA)...
2.
Utianski R, Whitwell J, Schwarz C, Duffy J, Botha H, Clark H, et al.
Eur J Neurol
. 2018 Jun;
25(11):1352-1357.
PMID: 29935044
Background And Purpose: The non-fluent/agrammatic variant of primary progressive aphasia (agPPA) is a heterogeneous diagnosis wherein some individuals have apraxia of speech (AOS). When agPPA includes AOS, a tauopathy is...
3.
Duffy J
Handb Clin Neurol
. 2016 Oct;
139:379-388.
PMID: 27719858
Acquired psychogenic or functional speech disorders are a subtype of functional neurologic disorders. They can mimic organic speech disorders and, although any aspect of speech production can be affected, they...
4.
Duffy J, Warburg F, Koelle S, Werner M, Nielsen P
Acta Anaesthesiol Scand
. 2015 Jul;
59(10):1367-76.
PMID: 26132862
Background: Pain and mental health concerns are prevalent among veterans. While the majority of research has focused on chronic pain as an entity, there has been little work directed towards...
5.
Jung Y, Whitwell J, Duffy J, Strand E, Machulda M, Senjem M, et al.
Eur J Neurol
. 2015 Jun;
23(2):313-9.
PMID: 26101072
Background And Purpose: A subset of patients with Alzheimer's disease (AD) present with early and prominent language impairment (aphasic AD). Our previous study demonstrated an association between global β-amyloid burden...
6.
Jung Y, Whitwell J, Duffy J, Strand E, Machulda M, Senjem M, et al.
Eur J Neurol
. 2013 Dec;
21(7):1040-3.
PMID: 24330306
Background And Purpose: A subset of patients with Alzheimer's disease (AD) present with early and prominent language deficits. It is unclear whether the burden of underlying β-amyloid pathology is associated...
7.
Clark H, Duffy J, Whitwell J, Ahlskog J, Sorenson E, Josephs K
Eur J Neurol
. 2013 Sep;
21(3):368-76.
PMID: 24053325
Background And Purpose: To describe speech, neurological and imaging characteristics of a series of patients presenting with progressive spastic dysarthria as the first and predominant sign of a presumed neurodegenerative...
8.
Whitwell J, Duffy J, Strand E, Machulda M, Senjem M, Gunter J, et al.
Eur J Neurol
. 2012 Oct;
20(4):629-37.
PMID: 23078273
Background And Purpose: Primary progressive apraxia of speech, a motor speech disorder of planning and programming, is a tauopathy that has overlapping histological features with progressive supranuclear palsy. We aimed...
9.
Josephs K, Whitwell J, Duffy J, Vanvoorst W, Strand E, Hu W, et al.
Neurology
. 2008 Jan;
70(1):25-34.
PMID: 18166704
Background: The pathology causing progressive aphasia is typically a variant of frontotemporal lobar degeneration, especially with ubiquitin-positive inclusions (FTLD-U). Less commonly the underlying pathology is Alzheimer disease (AD). Objective: To...
10.
Josephs K, Petersen R, Knopman D, Boeve B, Whitwell J, Duffy J, et al.
Neurology
. 2006 Jan;
66(1):41-8.
PMID: 16401843
Objective: To examine the relationship between early clinical features, pathologies, and biochemistry of the frontotemporal lobar degenerations (FTLDs), progressive supranuclear palsy (PSP), and corticobasal degeneration (CBD). Methods: The authors conducted...