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Featured Research

Can we predict who is at risk of facing cognitive issues in PD and address them earlier? These are the questions being pursued by Dr. Goldman of the PDF Research Center at Rush University Medical Center.

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PDF Grant Programs

Are you interested in furthering Parkinson's science? View PDF's open grant programs.

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Quality of Life

PDF's targeted PubMed search provides you with access to journal articles from the last 90 days that may be pertinent to Parkinson's disease research. 

Not what you're looking for? Do you need informational publications about Parkinson's targeted for people living with Parkinson's, caregivers and family members?  Please browse PDF's educational materials and programs - which are all available electronically or in print.  Order for yourself, a loved one or in bulk for your patients or support group.

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Risk of Aspiration in Care Home Residents and Associated Factors.
Claar D van der Maarel-Wierink, Gert-Jan van der Putten, Luc M J De Visschere, Ewald M Bronkhorst, Cees de Baat, Jos M G A Schols
J Gerontol Nurs 2014 Aug; :1-6
PMID: 25154055 [PubMed - as supplied by publisher]


Speech-related fatigue and fatigability in Parkinson's disease.
Matthew J Makashay, Kevin R Cannard, Nancy Pearl Solomon
Clin Linguist Phon 2014 Aug; :1-19
PMID: 25152085 [PubMed - as supplied by publisher]


Functional outcomes associated with expiratory muscle strength training: Narrative review.
Helena Laciuga, John C Rosenbek, Paul W Davenport, Christine M Sapienza
J Rehabil Res Dev 2014 Jul; 51(4):535-46
PMID: 25144167 [PubMed - as supplied by publisher]


Stimulation of the pedunculopontine nucleus area in Parkinson's disease: effects on speech and intelligibility.
Serge Pinto, Murielle Ferraye, Robert Espesser, Valérie Fraix, Audrey Maillet, Jennifer Guirchoum, Deborah Layani-Zemour, Alain Ghio, Stéphan Chabardès, Pierre Pollak, Bettina Debû
Brain 2014 Jul;
PMID: 25080284 [PubMed - as supplied by publisher]


Articulatory-acoustic vowel space: Application to clear speech in individuals with Parkinson disease.
Jason A Whitfield, Alexander M Goberman
J Commun Disord 2014 Jul;
PMID: 25074511 [PubMed - as supplied by publisher]


Collection and analysis of a Parkinson speech dataset with multiple types of sound recordings.
B E Sakar, M E Isenkul, C O Sakar, A Sertbas, F Gurgen, S Delil, H Apaydin, O Kursun
IEEE J Biomed Health Inform 2013 Jul; 17(4):828-34
PMID: 25055311 [PubMed - as supplied by publisher]


The impact of STN deep brain stimulation on speech in individuals with Parkinson's disease: The patient's perspective.
Jeffrey Wertheimer, Ann Y Gottuso, Miriam Nuno, Carol Walton, Aurore Duboille, Margaret Tuchman, Lorraine Ramig
Parkinsonism Relat Disord 2014 Jun;
PMID: 25048615 [PubMed - as supplied by publisher]


Natural history of falls in a population-based cohort of patients with Parkinson's disease: An 8-year prospective study.
Ylva Hivand Hiorth, Jan Petter Larsen, Kirsten Lode, Kenn Freddy Pedersen
Parkinsonism Relat Disord 2014 Jul;
PMID: 25048614 [PubMed - as supplied by publisher]


Activities of daily living, depression, and quality of life in Parkinson's disease.
Blake J Lawrence, Natalie Gasson, Robert Kane, Romola S Bucks, Andrea M Loftus
PLoS One 2014 ; 9(7):e102294
PMID: 25025280 [PubMed - as supplied by publisher]


Preparing an E-learning-based Speech Therapy (EST) efficacy study: Identifying suitable outcome measures to detect within-subject changes of speech intelligibility in dysarthric speakers.
L J Beijer, A C M Rietveld, M B Ruiter, A C H Geurts
Clin Linguist Phon 2014 Jul; :1-24
PMID: 25025268 [PubMed - as supplied by publisher]


Patterns and Predictors of Mental Health Service Utilization in People With Parkinson's Disease.
Lakkhina Troeung, Natalie Gasson, Sarah J Egan
J Geriatr Psychiatry Neurol 2014 Jul;
PMID: 25009156 [PubMed - as supplied by publisher]


Wet Voice as a Sign of Penetration/Aspiration in Parkinson's Disease: Does Testing Material Matter?
Marília Sampaio, Natalie Argolo, Ailton Melo, Ana Caline Nóbrega
Dysphagia 2014 Jul;
PMID: 25001523 [PubMed - as supplied by publisher]


Automated Acoustic Analysis in Detection of Spontaneous Swallows in Parkinson's Disease.
Marzieh Golabbakhsh, Ali Rajaei, Mahmoud Derakhshan, Saeed Sadri, Masoud Taheri, Peyman Adibi
Dysphagia 2014 Jun;
PMID: 24958599 [PubMed - as supplied by publisher]


Semantic trouble sources and their repair in conversations affected by Parkinson's disease.
Charlotta Saldert, Ulrika Ferm, Steven Bloch
Int J Lang Commun Disord 2014 Jun;
PMID: 24934292 [PubMed - as supplied by publisher]


Lee Silverman voice treatment versus standard NHS speech and language therapy versus control in Parkinson's disease (PD COMM pilot): study protocol for a randomized controlled trial.
Catherine M Sackley, Christina H Smith, Caroline Rick, Marian C Brady, Natalie Ives, Ramilla Patel, Helen Roberts, Francis Dowling, Sue Jowett, Keith Wheatley, Smitaa Patel, Debbie Kelly, Gina Sands, Carl Clarke
Trials 2014 ; 15:213
PMID: 24908096 [PubMed - as supplied by publisher]


The frequency and severity of gastrointestinal symptoms in patients with early Parkinson's disease.
Hye-Young Sung, Jeong-Wook Park, Joong-Seok Kim
J Mov Disord 2014 Apr; 7(1):7-12
PMID: 24926404 [PubMed - as supplied by publisher]


Relationship between acoustic measures and judgments of intelligibility in Parkinson's disease: A within-speaker approach.
Lynda Feenaughty, Kris Tjaden, Joan Sussman
Clin Linguist Phon 2014 May; :1-22
PMID: 24874184 [PubMed - as supplied by publisher]