2026 International Congress » Parkinson's Disease: Non-Motor Symptoms (non-Cognitive/ non-Psychiatric)

Meeting: 2026 International Congress

A Pragmatic Phenotype-Guided Algorithm for Constipation in Parkinson’s Disease

G. Hey, M. Beke, C. Rogers, A. Ramirez-Zamora, M. Amaris (Gainesville, USA)

A Tiered Fecal Biomarker Approach to Identify Gut–Brain Axis Phenotypes in Young-Onset Parkinsonism in a Clinical Setting with Limited Resources

N. Raisa, F. Aushi (Malang, Indonesia)

Affective Symptom Burden in Individuals with Olfactory Dysfunction in the PREDICT-PD Cohort

A. Shahid, S. Waters, S. Meyer, H. Chohan, V. Azoidou, C. Simonet, L. Pérez-Carbonell, E. De-Pablo Fernandez, A. Schrag, A. Noyce (London, United Kingdom)

Age of Onset as a Predictor of NonMotor Symptom Severity in Parkinson’s Disease

PK. Manharlal, EC. Lim, SRJ. Ting, SE. Saffari, EK. Tan (Singapore, Singapore)

Assessing Agreement of Self-Perception of Dysphagia in Individuals with Parkinson Disease and their Caregivers

A. Silbergleit, L. Schultz (Detroit, USA)

Association Between Esophageal Motility and Gait in Parkinson’s Disease: Possible Differential Mechanisms by Esophageal Region

JY. Lee, SH. Kim, SB. Koh (Seoul, Republic of Korea)

Association Between Sleep Disturbance and Fatigue in Patients with Parkinson’s Disease

K. Kurihara, N. Takahashi, K. Inoue, J. Tsugawa, Y. Baba (Fukuoka, Japan)

Association of one-year group-based telerehabilitation with quality of life in Parkinson’s disease

H. Saegusa, S. Okusa, T. Nukariya, T. Tezuka, Y. Nihei, Y. Kitagawa, S. Kubo, Y. Terayama, N. Suzuki, J. Nakahara, M. Seki (Tokyo, Japan)

Association of Triglycerides, LDL, and IL-6 with Non-Motor Symptoms in Parkinson’s Disease: A Cross-Sectional Study

F. de Amor, S. Suryadi, E. Pasmanasari, A. Wati (Semarang, Indonesia)

Autonomic Coupling Patterns Differ by REM Sleep Behavior Disorder Status in De Novo Parkinson’s Disease

B. Jin, J. Kim, S. Cheon (Busan, Republic of Korea)

Baseline auditory-perceptual speech ratings predict improvement in voice intensity after group-based speech intervention in Parkinson’s disease

H. Steurer, E. Schalling, E. Franzén, J. Gustafsson, F. Albrecht (Stockholm, Sweden)

Bayesian Network Analysis of Directional Relationships Among Motor and Non-Motor Symptoms in Parkinson’s Disease

A. Al-Sharman, H. Khalil, D. Malouche, S. Kanaan, M. Kim, N. Saad, M. Abdelrazeq (Sharjah, United Arab Emirates)

Bidirectional associations between seizures and parkinsonism: a retrospective case series

Y. Chen, J. Fleisher, R. O'Dwyer (Chicago, USA)

Biomarker and Clinical Correlates of Restless Legs Syndrome (RLS) in Parkinson’s Disease: A Paradoxical Hyperdopaminergic State

SM. Fereshtehnejad, J. Valerio, N. Ayas (Vancouver, Canada)

Boxing-Based Exercise Programs for Parkinson’s Disease: A Review of Motor and Quality-of-Life Outcomes

C. Hu, T. Tran (San Antonio, USA)

Cardiac Pacing Strategies for Cardiovascular Autonomic Dysfunction in Parkinson’s Disease

Y. Cordes, T. Fischer, J. Volkmann (Würzburg, Germany)

Cerebral Small Vessel Disease Burden and Motor Phenotype Expression in Parkinsonian Syndromes: A Quantitative Neuroimaging Analysis

FAY. Mallaev, GUL. Rakhimbaeva (Tashkent, Uzbekistan)

Clinical and Autonomic Correlates of Chronic Sialorrhea in Parkinson’s Disease: A Questionnaire-Based Study with Cluster Analysis of Autonomic and Dysphagia Burden

S. Okusa, R. Okochi, Y. Sakai, T. Nukariya, Y. Nihei, J. Nakahara, M. Seki (Tokyo, Japan)

Clinical and Psychophysiological Characteristics of Chronic Pain in Parkinson’s Disease: Pain Phenotypes, Central Sensitization, and Quality of Life

B. Alieva, Y. Shpilyukova (Moscow, Russian Federation)

Clinical Approach to Impulse Control–Related Behavioural Disorders in Parkinson’s Disease: A Scoping Review

G. Jin Yi, C. Lai Gwen, F. Cardoso, L. Tan (Singapore, Singapore)

Developing a toolkit for the assessment and management of lower urinary tract symptoms in parkinsonism

M. Smith, M. Drake, A. Batla, S. Creavin, C. Murphy, N. Vasquez, J. Panicker, Y. Ben-Shlomo, E. Henderson (Bristol, United Kingdom)

Diagnosis and therapeutic approaches for sialorrhea in patients with Parkinson’s disease.

N. Fedotova, E. Bril, O. Turgunkhujaev, O. Zimnyakova (Moscow, Russian Federation)

Diagnostic Test Utilization and Timing in a Multidisciplinary Gastrointestinal Symptom Clinic: Insights from the Parkinson’s Research and Integrated Support Model (PRISM) Clinic

G. Hey, M. Beke, N. Walker-Pizarro, C. Rogers, A. Ramirez-Zamora, M. Amaris (Gainesville, USA)

Differential Effects of Digital Self-Monitoring and Multimodal Training in Adults with Sleep Difficulties on Sleep and Psychological Outcomes: Relevance to Parkinson’s Disease

T. Tamir, M. Catalogna, N. Saporta, O. Shoval, S. Molcho, A. Amedi (Herzliya, Israel)

Distinct Non-Motor Symptom Progression Subtypes in Parkinson’s Disease Identified Using a Data-Driven SuStaIn Model

JY. Liu, AQ. Huang, SY. Liu, Z. Ruan, P. Chan (Beijing, China)

Early integrated Dysphagia and Nutritional Management in Parkinsonism: a prospective Feasibility Study to prevent Malnutrition and Complications

Y. Zashchypas, S. Lorenzl (SAlzburg, Austria)

Effect of Poor Sleep Quality on Fatigue Severity in Parkinson’s Disease

N. Helvacı Yılmaz, ö. Köksal, G. İbrahimova, B. Arı, İ. Emekli, G. Yılmaz çakan, M. Samancı, T. Zırh, G. Kenangil (Istanbul, Turkey)

Effects of a Ballet-Based Intervention on Apathy and Non-Motor Symptoms in Parkinson’s Disease: the PD-BalletTM Randomised Controlled Trial

A. Podlewska, L. Batzu, P. Tall, A. Hartley, A. Woods, C. Pariante, F. Derbyshire-Fox, I. Bakolis, J. Staunton, M. Uribe Mz-Recaman, N. Sevdalis, T. Soukup, V. Leta, A. Woods, D. Fancourt, D. van Wamelen (London, United Kingdom)

Efficacy of High-Frequency Repetitive Transcranial Magnetic Stimulation (HF-rTMS) for Pain Management in Parkinson’s Disease: A Systematic Review and Meta-Analysis

Y-H. Wu (Taipei, Taiwan)

Electroencephalographic and Functional Magnetic Resonance Imaging Analysis of Daytime Sleepiness in Parkinson’s Disease

JR. Zhang, JR. Hou, J. Cheng, XY. Cheng, XJ. Lu, F. Wang, CJ. Mao, CF. Liu (Suzhou, China)

Engage in Healthy Eating: A Community-Guided Approach to Culturally Sensitive Nutrition Support for People with Parkinson’s Disease (PD)

H. Shah, R. Gilbert, P. Purdy, L. Quinn, A. Parker, E. Adelman, A. Shiell, R. Pena, S. Lim (New York, USA)

Evaluating the Stability of a Short Smell Test in the PREDICT-PD Cohort

S. Meyer, A. Kuri, J. Bestwick, S. Waters, H. Chohan, A. Shahid, L. Smith, C. Simonet, L. Pérez-Carbonell, E. de Pablo-Fernandez, A. Schrag, A. Noyce (London, United Kingdom)

Evaluation of Sleep Parameters in Parkinson’s Disease According to Disease Duration Using Ambulatory Circadian Monitoring

L. Núñez Santos, MF. Valero García, B. Vives Pastor, M. Sastre Mesquida, A. Colomé Menoyo, S. Ferrández Sempere, E. Bargay Pizarro, C. Vallés Serrano, I. Legarda Ramírez (Palma, Spain)

Exploring the Relationship Between Insomnia and Autonomic Dysfunction in Parkinson’s Disease: A 1 Year SCOPA-AUT Analysis

D. Petrosyan, P. Bhaya, P. Coss, S. Horn, E. Vaou, L. Saadatpour (San Antonio, USA)

Feasibility and Preliminary Outcomes of an Online Fatigue Self Management Programme for People With Parkinsons Disease

SA. Alageel, KD. Deane, JH. Hibberd (Riyadh, Saudi Arabia)

Global Parkinson´s Symptoms Index Correlates with Changes in Quality of Life and Autonomy for Activities of Daily Living

D. Santos García, B. Solano, E. Cubo, S. Escalante, L. Vela, M. Seijo, P. Sánchez Alonso, M. Alonso Losada, N. López Ariztegui, B. Pascual Sedano, I. Pareés Moreno, I. Gastón, M. Menéndez González, M. Kurtis, C. Ordás, C. Valero, J. Ruíz Martínez, R. Alonso Redondo, SG. Coppadis (A Coruña, Spain)

Hemoglobin Levels and Non Motor Symptoms in Parkinsons Disease Patients with Modified Hoehn and Yahr Scores

F. Hukmiyya, E. Pasmanasari, A. Wati, S. Santoso (Semarang, Indonesia)

Hula as an Integrative Movement-Based Therapy: Baseline Cohort Characteristics

R. Shuman, E. Krening, K. Tolentino, M. Yee, K. Thai, M. Faouzi, M. Bruno (Honolulu, USA)

Impact of Continuous Subcutaneous Foslevodopa/Foscarbidopa (FLC/FCD) on Non-Motor Symptom Burden in Advanced Parkinson’s Disease: Domain-Level Analysis

K. Waqar, M. Thomas, Y. Abdelmajid, E. Freitas, R. Cabrito, RH. Battah, A. Anjum, SH. Mittal (Abu Dhabi, United Arab Emirates)

Impact of foslevodopa/foscarbidopa infusion on autonomic symptoms in advanced Parkinson’s Disease

D. Rinaldi, L. de Carolis, E. Bianchini, S. Galli, M. Salvetti (Rome, Italy)

Impact of TRPV4 Deletion on Nociception in an Experimental Model of Parkinson’s Disease Non-Motor Symptoms

L. Gomes Pereira, K. Casali Vieira, C. David Antoniazzi, G. Trevisan (Santa Maria, Brazil)

Impulse Control in Parkinson’s: β- and Muscle Burst Dynamics Reveal Distinct Effects of Pathology and Dopamine Medication

A. Warden, D. Cruse, C. Mcallister, B. Wright, H. Macdonald (Birmingham, United Kingdom)

Integrating Olink Proteomics and Multimodal MRI to Reveal a Multimodal Signature of Parkinson’s Disease with REM Sleep Behavior Disorder

LH. Zhu, F. Wang, YY. Zhu, KF. Yin, CX. Liu, LF. Yang, Q. Cui, WN. Xiong, YB. Han, AL. Pang, XL. Yang (kunming, China)

International, multicenter validation study of the Shame in Parkinson’s disease (SPARK) Scale

C. Rodriguez-Blazquez, I. Debove, A. Ayala, V. Fleury, A. Zenger, M. Kurtis, E. Cubo, C. Falup-Pecurariu, KR. Chaudhuri, MA. Qamar, H. Reichmann, S. Bostantjopoulou, M. Bereau, MJ. Forjaz, P. Martinez-Martin, P. Krack (Madrid, Spain)

Logopenic Aphasia After Thalamotomy in Parkinson’s Disease: A Case Report

İ. Sipahi, R. Yılmaz, ş. Akça Kalem, B. Samanci, E. şahin, H. Hanağası, B. Bilgiç (İstanbul, Turkey)

Long-Term Effects of Repeated Home-Based tDCS on Language Production in Parkinson’s Disease

N. Němcová Elfmarková, ľ. Nováková, K. Novotný, D. Kováč, J. Mekyska, I. Rektorová (Brno, Czech Republic)

Motor Trajectory in Parkinson’s Disease With Excessive Daytime Sleepiness: A Longitudinal Cohort Study

K. Aoshima, S. Ueno, N. Nishikawa, H. Iwaki, E. Igami, H. Takeshige(amano), T. Hatano, N. Hattori (Bunkyoku, Japan)

Neural Network Reorganization Mediates the Analgesic Effects of Repetitive Transcranial Magnetic Stimulation in Parkinson’s Disease

C. Mao, M. Liu, Y. Luo, Y. Zhang, E. Wang, X. Cheng, J. Zhang, F. Wang, C. Liu (Suzhou, China)

Neuropsychiatric Symptom Evolution Over the First Decade of Biomarker-Defined Parkinson’s Disease

I. Schoen, J. Wang, S. Xie, C. Caspell-Garcia, E. Mamikonyan, M. Stark, N. Dahodwala, A. Siderowf, R. Dobkin, M. York, D. Weintraub (Philadelphia, USA)

Nocturnal hypokinesia in Parkinson’s disease: impact on sleep and quality of life

I. Murasan, S. Diaconu, R. Ilea, R. Chiujdea, D. Batrinu, C. Falup-Pecurariu (Brasov, Romania)

Non-Motor Symptom Burden as a Key Determinant of Disease Clustering in Parkinson’s Disease

A. Rekik, R. Guizani, L. Bouafia, A. Mili, K. Jemai, H. Slimene, A. Hassine, S. Naija, S. Ben Amor (Sousse, Tunisia)

Non‑Motor Outcomes after STN-FUS for Parkinson’s disease

E. Natera-Villalba, R. Rodríguez-Rojas, JA. Pineda-Pardo, T. Jimenez-Castellanos, M. Del Alamo, M. Escribano, D. Mata Marín, P. Guida, I. Obeso, JA. Obeso, R. Martínez-Fernández (Madrid, Spain)

Odor‑specific olfactory dysfunction in early‑onset Parkinson’s disease

D. Larina, E. Bagdasarova, I. Zdorovec, A. Shekhvatova, K. Nazarova, M. Nikolaeva, I. Miliukhina, A. Murtazina, E. Bril, O. Turgunkhujaev (Saint-Petersburg, Russian Federation)

One-Year Trajectories of Non-Motor Symptoms in Parkinson’s Disease: A Longitudinal Cohort Study Using the MDS-NMS with Age at Onset Stratification

D. Faldu, S. Prasad, T. Nagaraj, S. Bhat, M. Bhardwaj, SS. Aramugham, K. Kumar, R. Mahale, P. Mailankody, V. Holla, N. Kamble, R. Yadav, P. Pal (Bengaluru, India)

Pain Assessment using Parkinson’s Disease Pain Classification System (PD-PCS) and King’s Parkinson Disease Pain Scale (KPPS) – a Comparative Study

JW. Queiroz, PC. Matos, A. Ferreira Gomes, C. Listik, E. Listik, F. Rolim, D. de Andrade, F. Carvalho (Fortaleza, Brazil)

Pain Inverts the Relationship Between Beta-band Power and Fatigue Severity in PD: an EEG Study

A. Hurtado-Martínez, M. Martín-Buro García-Dionisio, Y. González-Zamorano, M. Moreno-Verdú, F. Sánchez-Cuesta, JP. Romero-Muñoz (Pozuelo de Alarcón, Spain)

Pain Management in Parkinson’s Disease: The Role of TRPV1 as a Therapeutic Target

SJ. Song, YE. Kim (Anyang, Republic of Korea)

Pain relief beyond motor cortex modulation: clinical–neurophysiological dissociation after M1-tDCS in Parkinson’s disease

A. Megía-García, Y. González Zamorano, F. Sanchez Cuesta, J. Gómez Soriano, J. Romero Muñoz (Móstoles, Spain)

Parkinson’s disease patients with sleep disturbances: Motor and non-motor profiling

R. Guizani, A. Rekik, K. Jemai, A. Mili, H. Slimene, E. Jarrar, A. Hassine, S. Naija, S. Ben Amor (Sousse, Tunisia)

Perceived Consequences and Catastrophising Help Explain Health-Related Quality of Life in Parkinson’s Disease

V. Azoidou, E. Bhadra, E. Camboe, K. Dey, A. Zirra, K. Rowsell, C. Quah, C. Budu, T. Boyle, D. Gallagher, J. Bestwick, L. Smith, A. Noyce, C. Simonet (London, United Kingdom)

Posterior tibial nerve Stimulation in the management of Urinary Disorders in Parkinson’s Disease Experience of the National Hospital Center of Pikine

F. Niakam M., N. Mundih, M O. Ngoule, A. Ngassaki, SA. Sow, AM. Diop, J. Kahwagi, MD. Dia, C. Kwama, SA. Jouonang, CB. Bangweni, M. Boukoulou, AG. Faye, C. M. Samba, S. Kamali, M. Ndiaye, M. Fall (Dakar, Senegal)

Prevalence and characteristics of sleep disorders in Parkinson’s disease: an Argentine cohort.

F. San Juan, F. Echeverria, S. Rodriguez, T. Arakaki, N. Garreto (CABA, Argentina)

Prevalence of sarcopenic obesity and its association with non-motor symptoms in early Parkinson’s disease

S. Choi, R. Kim, J-Y. Lee (Incheon, Republic of Korea)

Reduced Slow Wave Sleep is Associated with Mobility Impairment in People with Parkinson’s Disease

M. Sleyster, A. Miften, A. Amara (Aurora, USA)

REM Sleep Behaviour Disorder and early non-motor symptoms in Parkinson’s Disease

HT. Lim, S. Ng, XY. Choi, D. Heng, ZY. Xu, S. Neo, KY. Tay, WL. Au, DX. Deng, EK. Tan, L. Tan (Singapore, Singapore)

Restless Limbs Syndrome (RLS) is More Likely a Premotor Symptom of Parkinson’s Disease then a Predisposing Condition.

D. Dickoff (Yonkers, USA)

Risk factors for dysautonomic fluctuations in Mexican PwP

MF. Medina-Pérez, MF. Velasco-Delgado, A. Cervantes-Arriaga, R. Solís-Vivanco, M. Rodríguez-Violante (Mexico City, Mexico)

Safindream Safinamide as First Add On to Levodopa Improves Nonmotor Symptoms in Parkinson disease A Prospective Real World Study

F J. Salazar Hernández, M. Cerdán Sánchez, B. Palazón Cabanes, A E. Báidez Guerrero, M. Ruiz Perelló, B. Gómez Gozálvez, D. López Segura, A. Sancho Pedros, M. Lorente Hernández (Cartagena, Spain)

Sex-Specific Associations Between Orthostatic Hypotension and Cerebral Hypoperfusion Injury in Parkinson’s Disease

Z. Li, X. Cui, S. Rong, R. Yang, M. Cai, Y. Zhang (Guangzhou, Guangdong Province, China)

Sleep Disturbance and Sleep Fragmentation as Correlates of Gait Deterioration and Fall-Related Outcomes in Parkinson’s Disease: A Systematic Review

S. Kakde, M. Kakde, S. Kakade (Aurangabad, India)

Sleep dysfunction and its clinical and video-polysomnographic correlates in patients with early Parkinson’s disease in comparison with early Progressive supranuclear palsy

N. Paul, S. Sreedharan, A. Vijayaraghavan (Thiruvananthapuram, India)

Sleep habits and lifestyle factors in people with Parkinson’s disease compared with healthy controls

I. Murasan, S. Diaconu, R. Chiujdea, R. Ilea, A. Urdea-Tuns, D. Batrinu, C. Falup-Pecurariu (Brasov, Romania)

Sleep Patterns and Cognitive Function in Parkinson’s Disease: a Longitudinal Pilot Study

ML. Nasi, E. Fiorenzato, L. Rigon, F. Vianello, D. Lupi, L. Weis, N. Cellini, A. Antonini, R. Biundo (Padova, Italy)

Smell as a Diagnostic Signature: Systematic Review and Meta-Analysis of UPSIT Accuracy in Distinguishing Parkinson’s Disease from Essential Tremor

M. Schiess, J. Martinez-Lemus, J. Rissardo, J. Patino, A. Caprara, A. Mcgarry, I. Walker (Houston, USA)

Spiritual Well-Being and Clinical Burden in Parkinson’s Disease: A Case–Control Study

DS. Jeong, WY. Jang, KW. Park (Gangneung-si, Republic of Korea)

Structural validity, reliability, and minimally important differences for the SCOPA-AUT

D. González, A. Karstens, G. Springer, A. Mahajan (Chicago, USA)

Subthalamic Nucleus Oscillatory Coupling During Sleep is Impaired in Parkinson’s Disease and Associated with Memory Consolidation

ZX. Yin, HL. Tan, JG. Zhang (Beijing, China)

Supine Graded Exercise and Orthostatic Blood Pressure in Alpha-Synucleinopathies

A. VAN.DER Stam, E. Barnes, Z. Jiang, G. Chiaro, V. Iodice (London, United Kingdom)

Testing the body vs brain-first hypothesis in early PD: a cross-sectional study

A. Querejeta-Coma, H. Canfield, L. Yupanqui-Guerra, L. Santos-Sánchez-de-Las-Matas, M. Sánchez-Boyero, E. Escario, M. Pintor-Zamora, CM. Ordás-Bandera (Móstoles, Spain)

The Anxiolytic Effect of Cannabidiol and Tetrahydrocannabinol in a Reserpine Model of Parkinson’s Disease in Mice

H. Tanko, T. Muhammad, A-S. Isa (Zaria, Nigeria)

The association of low back pain-related disability with functional mobility among individuals with Parkinson disease in Sri Lanka.

YS. Thakshila, HHN. Kalyani (Colombo, Sri Lanka)

The Effect of Depression on the Cognitive Phenotype in a Group of Patients Diagnosed with Idiopathic Parkinson’s Disease Without Dementia.

C. Hurtado-González, J. Ayala-Rico, S. Ospina Otalvaro, P. Gutiérrez-Lenis, A. Cubides-Munévar, A. Botero-Carvajal, J. Centeno-Arispe, D. Reyes-Torres, K. Ponce-Gil, J. Cedeño-Buitrago, L. Ortega-Bolaños (Cali, Colombia)