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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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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]


Sequential voluntary cough and aspiration or aspiration risk in Parkinson's disease.
Karen Wheeler Hegland, Michael S Okun, Michelle S Troche
Lung 2014 Aug; 192(4):601-8
PMID: 24792231 [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?
MarŪlia Sampaio, Natalie Argolo, Ailton Melo, Ana Caline Nůbrega
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]


Functional imaging of physiological and pathological speech production].
C A Kell
Nervenarzt 2014 Jun; 85(6):701-7
PMID: 24832012 [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]


Fluency in Parkinson?s disease: disease duration, cognitive status and age.
Natalia Casagrande Brabo, Thais Soares C Minett, Karin Zazo Ortiz
Arq Neuropsiquiatr 2014 May; 72(5):349-55
PMID: 24863510 [PubMed - as supplied by publisher]


Communicative strategies used by spouses of individuals with communication disorders related to stroke-induced aphasia and Parkinson's disease.
Emilia Carlsson, Lena Hartelius, Charlotta Saldert
Int J Lang Commun Disord 2014 May;
PMID: 24861715 [PubMed - as supplied by publisher]


Assessing speech dysfunction using BOLD and acoustic analysis in parkinsonism.
Mohit Saxena, Madhuri Behari, S Senthil Kumaran, Vinay Goyal, Vaishna Narang
Parkinsonism Relat Disord 2014 May;
PMID: 24857769 [PubMed - as supplied by publisher]


Efficacy of language-appropriate cueing on micrographia in Korean patients with Parkinson's disease.
HyangHee Kim, Ji Hye Yoon, Hyo Suk Nam
Geriatr Gerontol Int 2014 May;
PMID: 24852208 [PubMed - as supplied by publisher]


Cepstral Analysis of Hypokinetic and Ataxic Voices: Correlations With Perceptual and Other Acoustic Measures.
Stephen Jannetts, Anja Lowit
J Voice 2014 May;
PMID: 24836365 [PubMed - as supplied by publisher]