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PublicationArticle (with peer review)

Spinal cord involvement and cardiovascular autonomic dysfunction in Parkinson’s disease

Abstract

This study uses multimodal MRI and clinical measures to examine spinal cord involvement and cardiovascular autonomic dysfunction in Parkinson’s disease. It compares 26 patients with Parkinson’s disease and 22 healthy controls, including patient groups with and without REM sleep behaviour disorder. The authors report associations between spinal cord imaging measures and cardiovascular dysautonomia, particularly in the group with REM sleep behaviour disorder. The findings are observational and do not establish that the MRI changes cause autonomic symptoms.

Chougar, L., et al. (2026). Spinal cord involvement and cardiovascular autonomic dysfunction in Parkinson’s disease. Scientific Reports, 16, 13831. https://doi.org/10.1038/s41598-026-38152-z. Spinal cord involvement and cardiovascular autonomic dysfunction in Parkinson’s disease

Details

Author: L. Chougar, F.-X. Lejeune, J. Cohen-Adad, C. Landelle, M. Guay-Paquet, J. Newton, J. Valosek, E. Biondetti, C. Jovanovic, K. Wennberg, A. Dagher, J. Doyon, N. Pyatigorskaya, S. Sambin, G. Mangone, J.-C. Corvol, I. Arnulf, M. Vidailhet & S. Lehéricy
Publication year: 2026
Published in: Scientific Reports, 16, article 13831

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Karl Wennberg
+46705105366karl.wennberg@ratio.se

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Precision in school mental health investment: Heterogeneous effects across dual-factor subgroups

R. Persson & K. Wennberg

Publication year

2026

Published in

Research Square preprint

Abstract

This open preprint studies whether municipal spending on school mental health services is associated with different mental-health profiles among adolescents. Using survey data for 63,190 ninth-grade students in 26 municipalities from 2006 to 2024, the authors distinguish profiles by psychiatric symptoms and subjective well-being. Within-municipality spending increases are associated with lower odds of the “Troubled” profile, but not the “Vulnerable” profile, whose members report low well-being without high symptoms. The authors suggest services may need to better identify this group. The study reports associations, not randomized causal effects.

Article (with peer review)

Preparing principals: A causal test of school leadership training as a distributed property

R. Persson, K. J. Wennberg & E. K. Demir

Publication year

2026

Published in

Academy of Management Proceedings, 2026(1), abstract 16403

Abstract

This conference paper studies whether leadership training has effects across school leadership teams when principals and assistant principals are trained at different times. Using longitudinal data on 3,783 principals and assistant principals, it finds that training order matters: training principals first is associated with gains in student achievement through collaborative mechanisms, while teacher ratings of instructional leadership decline, suggesting leadership may be redistributed across the team. The published proceeding contains an abstract rather than a full paper.

Article (with peer review)

The uneven distribution of risks and rewards in multi-level mission-oriented green industrial policies

V. Skyrman, K. Wennberg, B. Hermelin & S. Haikola

Publication year

2026

Published in

Regional Studies, 60(1), article 2702095

Abstract

This article examines how supranational, national and local actors share the risks of mission-oriented green industrial policy. Drawing on interviews with stakeholders in two Swedish gigafactory projects, alongside policy documents and statistics, it finds that municipalities use public investment, land-use decisions and partnerships to attract investment. The projects can advance green industrial goals, but weak coordination across levels of government can leave local authorities with strained finances and substantial risk. The capacity to participate depends on municipal legal autonomy, fiscal resources and administrative capacity.